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MR4UT Detailed User`s Manual

1. LCD CONFIGURATION MENU 4 LCD Configuration Menu After the hardware installation the disk drives connected to the RAID box must be configured and the volume set units initialized before they are ready to use This can be also accomplished by the Front panel touch control keypad The LCD module on the backside can access the built in configuration and administration utility that resides in the controller s firmware To complete control and management of the array s physical drives and logical units can be performed from the front panel requiring no additional hardware or software drivers for that purpose The LCD provides a system of screens with areas for information status indication or menus The LCD screen displays up to two lines at a time of menu items or other information The LCD display back panel function keys are the primary user interface for the RAID box Except for the Firmware update all configurations can be performed through this interface Function Key Definitions The four function keys at the back panel of the button perform the following functions Eer Function Use to scroll the cursor Upward Rightward Use to scroll the cursor Downward Leftward ENT Key Submit Select ion Function Confirm a selected Item ESC Key Return to Previous Screen Exit a selection configuration 4 1 Starting LCD Configuration Utility After power on the MobileRAID MR4UT press ENT to verify pass word for entering
2. APPENDIX Appendix A Upgrading Flash Firmware Programming Utility Since the RAID box features flash firmware it is not necessary to change the hardware flash chip in order to upgrade the RAID firm ware The user can simply re program the old firmware through the RS 232 port or Lan Port New releases of the firmware are available in the form of a DOS file at OEM s FTP The file available at the FTP site is usually a self extracting file that contains the following MR4UTXXXX BIN Firmware Binary where XXXX refers to the function name BOOT FIRM and MBRO MR4UT BOOT BIN RAID controller hardware initialization in the MR4UT MR4UT FIRM BIN RAID kernal program MR4UT MBRO BIN Master Boot Record for supporting Dual Flash Image in the MobileRAID MR4UT README TXT it contains the history information of the firmware change Read this file first before upgrading the firmware These files must be extracted from the compressed file and copied to one directory in drive A or C Establishing the Connection for the RS 232 The firmware can be downloaded to the RAID box controller by using an ANSI VT 100 compatible terminal emulation program or HTTP web browser management You must complete the appro priate installation procedure before proceeding with this firmware upgrade Please refer to chapter 4 3 VT100 terminal Using the controller s serial port for details on establishing the connection Whichever ter
3. Write Through Write Bac VT 100 UTILITY CONFIGURATION 82 5 5 3 1 8 SATA Xfer Mode The MobileRAID MR4UT can support up to SATA II which runs up to 300MB s NCQ is a command protocol in Serial ATA that can only be implemented on native Serial ATA hard drives It allows multiple commands to be outstanding within a drive at the same time Drives that support NCQ have an internal queue where outstanding commands can be dynamically rescheduled or re ordered along with the necessary tracking mechanisms for outstanding and completed portions of the workload The RAID subsystem allows user to choose the SATA Mode slowest to fastest SATA150 SATA150 NCQ SATA300 SATA300 NCQ ans Digital RAID Controller Main Menu Quick Volume Raid Setup Volume Set Fur Von Volume Creation eer Volume Name MR4UT VOL 00 Raid Level 5 400 0GB Host SATA Xfer Mode SATA150 ATA 0 NCQ SATA300 SATA300 NCQ System informa SATA Xt 5 5 3 2 Delete Volume Set To delete volume set from raid set system function move the cursor bar to the Volume Set Function menu and select the Delete Volume Set item then press Enter key The Volume Set Functions menu will show all Raid Set item Move the cursor bar to an RAID set number then press Enter key to show all volume set in the raid set Move cursor to the deleted vol ume set number press Enter key to delete it VT 100 UTILITY CONFIGURATION
4. ans Digital RAID Controller Quick Volume Raid Setup RESTE Volume Set Function Raid System Eu MR4UT VOL 00 EEN Ethernet Config R q Eesen S 5 5 3 3 Modify Volume Set ans Digital RAID Controller Quick Volume Raid Setup E Volume Set Function Physical Drives Raid System Eu Ethernet Config View System E Create Volume Set Delete Volume Set Modify Volume Set Check Volume Set gt E Select Volume to Modify L MR4UT VOL 00 Hardware Monit System informa Use this option to modify volume set configuration To modify volume set values from Volume Set Function move the cur sor bar to the Volume Set Functions menu and select the Modify Volume Set item then press Enter key The Volume Set Functions menu will show all Raid set number items Move the cursor bar to an raid set number item then press Enter key to show all volume set item Select the volume set from the list you which to change press Enter key to modify it 83 VT 100 UTILITY CONFIGURATION 5 5 3 3 1 Volume Expansion Use the raid set expands to expand a raid set when a disk is added to your system The expand capacity can use to enlarge the volume set size or create another volume set The Modify Volume Set function can support the volume set expansion function To expand volume set capacity value from raid set system function move the curs
5. press ENT to enter the main menu Press UP DOWN buttons to select the Volume Set Func tions option and then press ENT to enter further submenus All volume set submenus will be displayed 4 7 4 1 Create Raid Volume Set To create a volume set Please refer to this chapter section 4 7 Using Raid Set and Volume Set Functions The volume set attributes screen shows the volume set default configuration value that is currently being configured The attributes for MR4UT are Raid Level Stripe Size Cache Mode Host Channel Drive Number SATA Xfer Mode and Vol ume Name number See Figure 4 7 4 1 1 All value can be changed by user Press the UP DOWN buttons to select attribute Press ENT to modify the default value Us ing the up and down arrow buttons to select attribute value and press ENT to accept the default value The following is the attributes descriptions Please refer to this chapter section 4 7 Using Raid Set and Volume Set Functions to complete the create volume set function 43 LCD CONFIGURATION MENU HAL gt l Figure 4 7 4 1 1 XF l Mase gt EY l 4 7 4 1 1 Volume Name The default volume name will always appear as Volume Set You can rename the volume set name providing it does not exceed the 15 characters limit 4 7 4 1 2 Raid Level The RAID box can support raid level 0 1 10 3 and 5 4 7 4 1 3 Stripe Size This parameter sets the size of the segment written to each disk in
6. Tick on the Confirm The Operation and click on the Submit button in the screen to delete it SW lived Technologs Coeparation 6 4 3 Expand Raid Set Use this option to expand a RAID set when a disk is added to your RAID box This function is active when at least one drive is available tatn oul Areea Techtelegs Corporation To expand a raid set click on the Expand Raid Set link Select the target raid set which you want to expand it Tick on the available disk and Confirm The Operation and then click on the Submit button in the screen to add disks to the raid set WEB BROWSER BASED CONFIGURATION 6 4 4 Offline Raid Set This function is for customer being able to unmount and remount a multi disk volume All Hdds of the selected raid set will be put into offline state and spun down and fault LED will be in fast blinking mode 6 4 5 Activate Raid Set When one of the disk drive is removed in power off state the RAID set state will change to Incomplete State If user wants to continue to work when the RAID box is power on User can use the Activate Raid Set option to active the RAID set After user complete the function the Raid State will change to Degraded Mode To activate the incomplete the raid set click on the Acti vate Raid Set link Then Select The RAID SET To Activate screen is displayed showing all raid set existing in the current control ler Click the raid set n
7. 60 VT 100 Utility Configuration see KENNEN EE EE E Ne 61 5 1 Configuring Raid Sets Volume Sets eceeeee eee eee eee ee ee ees 61 5 2 Designating Drives aS Hot Gpares eee eee ee ence eeee nena 62 5 3 Using Quick Volume Raid Setup Confguration 62 5 4 Using Raid Set Volume Set Function Method ccceeeeeeenes 64 575 Main MENU EE 66 5 5 1 Quick Volume Raid Getup cc ceceeee eee e eee eeeeeeeeeeeeeeaeeaees 67 5 5 2 Raid Set FUNCION iii ta he vale NENNEN ENNEN EEN 69 5 5 2 1 Credte Rad Set eege Wee ee ee ee dee 70 5 5 2 2 Delete Raid Set NENNEN 71 5 5 2 3 Expand Raid Get ENNEN 72 55 24 Offline Raid Sets eege dE EE ENEE EEN 73 5 5 2 5 Activate Raid Get 73 5 5 2 6 Create HotSpare ee vinta cee oe ae a ARA 74 5 5 2 7 Delete Hot Spare ENNEN 74 5 5 2 8 Raid Set Information 75 5 5 3 Volume Set Function errsrrirernrinrrikrnntRE rE KEOnrAPRAERPRA FERRAR 76 5 5 3 1 Create Volume Get 77 5 5 3 1 1 VolUMe Name 78 55 3 2 Raid Level eege ane cadets ce vk ENEE EES 78 5 573 13 Capacity EE 79 e e ele WEE 79 5 5 3 1 5 Host Channel AN 80 55 301 6 Drive NO Fb eege SEENEN VAN EN be d Cache Megde E tien exe SNE EE ANERE dE Ee EEN EN 5 5 3 1 8 SATA Xfer Mode 82 5 5 3 2 Delete Volume Get 82 5 5 3 3 Modify Volume Get ENNEN 83 5 5 3 3 1 Volume Expansion 84 5 5 3 3 2 Volume Set Migration cceeceeeee cesta eee eee eeeeeees 84 ben Ek Check Volume S tiwcscccicucceaet ies e ge degehe fN ged uee nak
8. RAID 0 requires 1 or more physical drives RAID 1 requires at least 2 physical drives RAID 1 Spare requires at least 3 physical drives RAID 3 requires at least 3 physical drives RAID 5 requires at least 3 physical drives RAID 3 Spare requires at least 4 physical drives RAID 5 Spare requires at least 4 physical drives After adding physical drives to the current raid set as desired press Yes to confirm the Create Raid Set function An Edit The Raid Set Name dialog box appears Enter 1 to 15 alphanu meric characters to define a unique identifier for a raid set The default raid set name will always appear as Raid Set Press Enter to finish the name editing Press Enter key when you are finished creating the current raid set To continue defining another raid set repeat step 3 To begin volume set configuration go to step 8 Choose Volume Set Function from the main menu Select the Create Volume Set and press Enter key Choose one raid set from the Create Volume From Raid Set screen Press Enter key to confirm it Press Enter key to define Foreground Initialization Background Initialization or No Init To Rescue Volume When Foreground Initialization the initialization proceeds must be completed before the volume set ready for system accesses When background Initialization the initialization proceeds as a background task the volume set is fully accessible for system rea
9. VolumeSet functions if you prefer to customize your system 6 4 RaidSet Functions Use the RaidSet Functions and VolumeSet Functions if you pre fer to customize your system User manual configuration can full control of the raid set setting but it will take longer to complete than the Quick Function Select the RaidSet Functions to manu ally configure the RAID set for the first time or deletes existing RAID set and reconfigures the RAID set A RAID set is a group of disks containing one or more volume sets 6 4 1 Create Raid Set SW Vreea Technobeg Carpornstien To create a RAID set click on the Create Raid Set link A Se lect The SATA Drive For RAID Set screen is displayed showing the SATA drive connected to the current RAID box Click on the selected physical drives with the current raid set Enter 1 to 15 al phanumeric characters to define a unique identifier for a raid set The default raid set name will always appear as Raid Set Tick on the Confirm The Operation and click on the Submit button in the screen the raid set will start to initialize WEB BROWSER BASED CONFIGURATION 112 6 4 2 Delete Raid Set To delete a RAID set click on the Delete Raid Set link A Select The RAID SET To Delete screen is displayed showing all RAID set existing in the current controller Click the RAID set number you which to delete in the select column to delete screen
10. access the volume set But user can only write through one channel at the time for data consistency For eSATA host controller with port multiplier function the eSA TA port can support up to 4 volume sets Drive 0 3 4 15 for Reserved For the host controller without port multiplier function the eSATA port can only support one volume set Drive 0 1 15 for Reserved But the USB port can support up to 4 volume sets Drive 0 3 4 15 for Reserved 117 WEB BROWSER BASED CONFIGURATION 6 5 2 Delete Volume Set To delete volume from VolumeSet Functions move the cursor bar to the main menu and click on the Delete Volume Set link Then Select The Raid Set To Delete screen will show all RAID set number Tick on a RAID set number and Confirm The Opera tion then click on the Submit button to the delete volume set omi te yenan n J Arrea Technedugs Corporation 6 5 3 Modify Volume Set To modify a volume set from a raid set 1 Click on the Modify Volume Set link 2 Tick on the volume set from the list that you want to modify then click the Submit button The following screen appears Use this option to modify volume set configuration To modify vol ume set move the cursor bar to the volume set menu and click on it The modify value screen appears Move the cursor bar to an attribute item and then click on the attribute to modify the value After you complete the modific
11. set 114 WEB BROWSER BASED CONFIGURATION 6 5 VolumeSet Functions A volume set is seen by the host system as a single logical device It is organized in a RAID level with one or more physical disks RAID level refers to the level of data performance and protection of a volume set A volume set capacity can consume all or a por tion of the disk capacity available in a raid set Multiple volume sets can exist on a group of disks in a raid set Additional volume sets created in a specified raid set will reside on all the physical disks in the raid set Thus each volume set on the raid set will have its data spread evenly across all the disks in the raid set 6 5 1 Create Volume Set The following is the volume set features for the MobileRAID MR4UT 1 Volume sets of different RAID levels may coexist on the same raid set 2 Up to 4 volume sets in a raid set can be created by the SATA RAID controller With Host controller supported port multi plier function 3 The maximum addressable size of a single volume set is not limited to two TB because the controller is capable of 64 bit LBA mode However the operating system itself may not be capable of addressing more than two TB To create volume set from raid set system move the cursor bar to the main menu and click on the Create Volume Set link The Select The Raid Set To Create On It screen will show all raid set number Tick on a raid set number that you want to create and
12. setup of MobileRAID MR4UT It s API library supports customer to write its own monitor utility The hardware monitor can monitor enclosure voltage temperature and FAN Adapter Architecture e 400MHz storage I O processor e Unleash the power of 3 0Gbps and NCQ on the eSATA host port e NVRAM for RAID configuration amp transaction log e Write through or write back cache support e Redundant flash image for controller availability e RAID level 0 1 10 3 5 Single Disk or JBOD e Multiple RAID selection e Up to 4 volumes Target mode multiplier emulation e Online array roaming e Online RAID level stripe size migration e Online capacity expansion and RAID level migration simultaneously e Online dynamic volume set capacity expansion e Instant availability and background initialization e Automatic insertion removal detection and rebuild e Greater than two TB per volume set INTRODUCTION e Support SMART NCQ and OOB staggered spin up capable drives Monitors Notification e Push Buttons and LCD Display Panel for setup and status e Environment and drive failure indication through LCD LED and alarm buzzer e Keep silent and adequate air flow and cooling by intelligent cooling fan speed controller RAID Management e Field upgradeable firmware in flash ROM via RS 232 and LAN port e LCD Hot Key supports one step creation RAID configuration e Firmware embedded manager via RS 232 port e Firmware embedded Browser based R
13. then click on the Submit button The new create volume set allows user to select the Volume Name RAID Level Capacity Initialization Mode Strip Size Cache mode SATA Data Xfer Mode and Channel Drive 115 WEB BROWSER BASED CONFIGURATION e gei a 29 e Volume Name The default volume name will always appear as Volume Set You can rename the volume set name providing it does not exceed the 15 characters limit Raid Level Set the RAID level for the volume set Highlight Raid Level and press Enter The available RAID levels for the current volume set are displayed Select a RAID level and press Enter to confirm it e Capacity The maximum volume size is default in the first setting Enter the appropriate volume size to fit your application e Volume Initialization Mode Press Enter key to define Foreground Initialization Background Initialization or No Init To Rescue Volume When Foreground Initialization the initialization proceeds must be completed before the volume set ready for system accesses When background Initialization the initialization proceeds as a background task the volume set is fully accessible for system reads and writes The operating system can instantly access to the newly created arrays without requiring a reboot and waiting the initialization complete The No Init To Rescue Volume option is for customer to rescue volume without losing data in the disk e Volume
14. 6 7 7 Clear Events Buffer Use this feature to clear the entire events buffer information 6 7 8 Modify Password To set or change the RAID box password move the mouse cursor to System Controls screen and click on the Change Password link The Modify System Password screen appears The password option allows user to set or clear the raid box s password protection feature Once the password has been set the user can only monitor and configure the raid box by providing the correct password The password is used to protect the internal RAID box from unauthorized entry The controller will check the password only when entering the main menu from the initial screen The RAID subsystem will automatically go back to the initial screen when it does not receive any command in 5 miuntes Do not use spaces when you enter the password If spaces are used it will lock out the user To disable the password press Enter key only in both the Enter New Password and Re Enter New Password column Once the user confirms the operation and clicks the Submit button The existing password will be cleared No password checking will occur when entering the main menu from the starting screen WEB BROWSER BASED CONFIGURATION Sal aul WE TE 6 7 9 Upgrade Firmware Please refer to the appendix A Upgrading Flash Firmware pro graming 6 7 10 Restart Controller Use the Restart Controller function to restart the RAID box 6 8 Informati
15. 7 7 3 HTTP Port Number To manually configure the HTTP Port Number of the RAID box press UP DOWN buttons to select Ethernet Configuration function and press ENT Using UP DOWN buttons to select HTTP Port Number then press ENT It will show the default address setting in the RAID box Then You can reassign the de fault HTTP Port Number of the box 4 7 7 4 Telnet Port Number To manually configure the Telent Port Number of the RAID box press the UP DOWN buttons to select Ethernet Configuration function and press ENT Using UP DOWN buttons to select Telent Port Number then press ENT It will show the default address setting in the RAID box You can then reassign the default Telent Port Number of RAID box 4 7 7 5 Ethernet Address Each Ethernet port has its unique Mac address which is also factory assigned Usually Ethernet Address is used to uniquely identify a port in the Ethernet network 4 7 8 Show System Events To view the RAID box events press ENT to enter the main menu Press UP DOWN buttons to select the Show System Events option and then press ENT The system events will be displayed Press UP DOWN buttons to browse all the system events 4 7 9 Clear all Event Buffers Use this feature to clear the entire events buffer information To clear all event buffers press ENT to enter the main menu Press UP DOWN buttons to select the Clear all Event Buffers option and then press ENT The confirmation
16. CONFIGURATION You must be logged in as administrator with local admin rights on the remote machine to remotely configure it The RAID box default User Name is admin and the Password is 0000 6 2 Web Browser Start up Screen The web browser start up screen will display the current configura tion of your RAID box It displays the Raid Set List Volume Set List and Physical Disk List The raid set information volume set infor mation and drive information can also be viewed by clicking on the RaidSet Hierarchy screen The current configuration can also be viewed by clicking on RaidSet Hierarchy in the menu nih a SW kreea Fechmobeg Curporstisn Kai ko Beet To display raid set information move the mouse cursor to the desired raid set number then click it The raid set information will show in the screen To display volume set information move the mouse cursor to the desired volume set number then click it The volume set informa tion will show in the screen To display drive information move the mouse cursor to the desired physical drive number then click it The drive information will show in the screen 109 WEB BROWSER BASED CONFIGURATION 6 2 1 Main Menu The main menu shows all function that enables the customer to execute actions by clicking on the appropriate link Individual Category Quick Function Create a default configuration which is based on the number of physica
17. Strip Size This parameter sets the size of the stripe written to each disk in a RAID O 1 10 or 5 logical drive You can set the stripe size to 4 KB 8 KB 16 KB 32 KB 64 KB or 128 KB EEE eee 116 WEB BROWSER BASED CONFIGURATION A larger stripe size produces better read performance especially if your computer does mostly sequential reads However if you are sure that your computer does random reads more often select a small stripe size e Volume Cache Mode The RAID box supports Write Back Cache and Write Through Cache e SATA Data Xfer Mode The MobileRAID MR4UT can support up to SATA II which runs up to 300MB s NCQ is a command protocol in Serial ATA that can only be implemented on native Serial ATA hard drives It allows multiple commands to be outstanding within a drive at the same time Drives that support NCQ have an internal queue where outstanding commands can be dynamically rescheduled or re ordered along with the necessary tracking mechanisms for outstanding and completed portions of the workload The RAID subsystem allows user to choose the SATA Mode slowest to fastest SATA150 SATA150 NCQ SATA300 SATA300 NCQ e Channel Drive There are three kinds of host channel option for each volume to select SATA USB or SATA amp USB SATA eSATA host channel can access to the volume set USB USB host channel can access to the volume set SATA amp USB Both eSATA and USB host channel can concurrently
18. The attributes for Pass Through Disk are the Cache Model Host Channel Drive Number and SATA Xfer Mode RER 50 LCD CONFIGURATION MENU All value can be modified by user UP DOWN buttons to select attribute Press ENT to modify the default value Using the up and down arrow buttons to select attribute value and press ENT to accept the selection value After completing the modification press ESC to enter the confirmation screen and then press ENT to accept the Modify Pass Through Disk function 4 7 5 4 Delete Pass Through Disk To delete Pass Through disk from the pass through drive pool press UP DOWN buttons to choose the Delete Pass Through Disk option and then press ENT The Select Drive Function menu will show all Pass Through disk number items Using UP DOWN buttons to select the Pass Through Disk that user want to delete and press ENT The delete Pass Through confirmation screen will appear press ENT to delete it 4 7 5 5 Identify The Selected Drive To prevent removing the wrong drive the selected disk Fault LED indicator will light for physically locating the selected disk when the Identify The Selected Drive function is selected To identify selected drive from the physical drive pool press UP DOWN buttons to choose the Identify The Selected Drive option then press ENT key The Select Drive function menu will show all physical drive number items Using UP DOWN buttons to select the disk that us
19. a RAID O 1 10 or 5 logical drive You can set the stripe size to 4 KB 8 KB 16 KB 32 KB 64 KB or 128 KB A larger stripe size produces better read performance especially if your computer does mostly sequential reads However if you are sure that your computer does random reads more often select a small stripe size E 44 LCD CONFIGURATION MENU 4 7 4 1 4 Cache Mode User can set the cache mode as Write Through Cache or Write Back Cache 4 7 4 1 5 Host Channel There are three kinds of host channel option for each volume to select SATA USB or SATA amp USB SATA eSATA host channel can access to the volume set USB USB host channel can access to the volume set SATA amp USB Both eSATA and USB host channel can concurrently access the volume set But user can only write through one channel at the time for data consistency 4 7 4 1 6 Drive Number For eSATA host controller with port multiplier function the eSATA port can support up to 4 volume sets Drive 0 3 4 15 for Reserved For the host controller without port multiplier function the eSATA port can only support one volume set Drive 0 1 15 for Reserved But the USB port can support up to 4 volume sets Drive 0 3 4 15 for Reserved 4 7 4 1 7 SATA Xfer Mode The MobileRAID MR4UT can support up to SATA II which runs up to 300MB s NCQ is a command protocol in Serial ATA that can only be implemented on native Serial ATA hard drives It allows
20. as an individual disk JBOD does not provide data redundancy User needs to delete the RAID set when you want to change the option from the RAID to the JBOD function ES OOOO 91 VT 100 UTILITY CONFIGURATION Mute The Alert Beeper Alert Beeper Setting Change Password Raid Se Background Task Priol Volume Maximum SATA Mode Host NCQ Mode Setti HDD Read Ahead Cac Stagger Power On Spin Down Idle HDD Empty HDD Slot LED HDD SMART Status Polling Auto Activate Raid Set Capacity Truncation Terminal Port Config Update Firmware Restart Controller 5 5 5 5 Background Task Priority ans Digital RAID Controller Raid System Function Mute The Alert Beeper Alert Beeper Setting Change Password JBOD RAID Function Maximum SATA Moq Host NCQ Mode Ge Ultra Low 5 HDD Read Ahead Q Low 20 Stagger Power On Medium 50 Spin Down Idle HDG Empty HDD Slot LE HDD SMART Status Polling Auto Activate Raid Set Capacity Truncation Terminal Port Config Update Firmware Restart Controller The Background Task Priority is a relative indication of how much time the controller devotes to a background operation such as rebuilding or migrating The RAID box allows user to choose the rebuild priority to balance volume set access and background tasks appropriately VT 100 UTILITY CONFIGURATION 5 5 5 6 Maximum SATA Mode Within the RAID box the eSATA USB2 0 acts as a target an
21. drive trays Figure 2 2 Slide drive tray back into the MobileRAID MR4UT 15 HARDWARE INSTALLATION 16 Step 2 Connect the Power An AC power cord was supplied with your MobileRAID MR4UT This is the only power cord recommended for use with this prod uct Connect this power cable to a grounded electrical outlet and to the MobileRAID MR4UT Turn on the AC power switch from the back of MobileRAID MR4UT Figure 2 3 Connect the power cable to a grounded electrical outlet and to the MobileRAID MR4UT Step 3 Configure RAID Subsystem The MobileRAID MR4UT is normally delivered with LCD pre in stalled Your MobileRAID MR4UT can be configured by using the LCD with keypad a serial device terminal emulation or LAN port e Method 1 LCD Panel with Keypad You can use LCD front panel and keypad function to simply cre ate the RAID volume The LCD status panel also informs you of the disk array s current operating status at a glance LCD Hot Key supports one step creation RAID configuration For addi tional information on using the LCD to configure the RAID box see the Chapter 4 of LCD Configuration Menu HARDWARE INSTALLATION The LCD provides a system of screens with areas for informa tion status indication or menus The LCD screen displays up to two lines at a time of menu items or other information The Initial screen is as following Company Name Status Display POWER BUSY FAULT G OO O Areca T
22. function will be able to recognize one hard drive in the MobileRAID MR4UT 3 SATA is faster than FireWire 800 and more reliable Some Mac users have lost data as a result of FireWire firmware changes and that risk continues to exist each time FireWire is altered That risk does not exist with SATA enclosures as no bridge board is required e Hi Speed USB 2 0 Cables and Connectors The MobileRAID MR4UT uses the USB 2 0 or Hi Speed USB providing an even greater enhancement in performance up to 40 times faster than USB 1 1 with a design data rate of 480 Mbps Your MobileRAID MR4UT is shipped with a Hi Speed USB 2 0 cable to ensure maximum data transfer performance when connected to a Hi Speed USB 2 0 port This cable can also work when connected to a USB port but drive performance will be limited to USB 1 1 transfer rates Step 5 Turn on Host Computer Power Safety checks the installation Connect all power code Turn on the AC power switch at the rear of host computer then press the power button at the front of the host computer Step 6 Format Partition and Mount the MobileRAI D MR4UT Volumes After you create a unit it needs to be partitioned formatted and mounted by the operating system There are various steps that is depend on what operating system you are using Win dows Linux FreeBSD or Mac etc Detailed steps for each operating system are provided on their disk utility After that the MobileRAID MR4UT can b
23. is seen by the host system as a single logical de vice It is organized in a RAID level with one or more physical disks RAID level refers to the level of data performance and protection of a volume set A volume set capacity can consume all or a portion of the disk capacity available in a raid set Multiple volume sets can exist on a group of disks in a raid set Additional volume sets created in a specified Raid Set will reside on all the physical disks in the raid set Thus each volume set on the raid set will have its data spread evenly across all the disks in the raid set The following steps is the volume set features 1 Volume sets of different RAID levels may coexist on the same raid set 2 Up to 4 volume sets in a raid set can be created by the RAID box With Host controller supported port multi plier function 3 The maximum addressable size of a single volume set is not limited to two TB because the controller is capable of 64 bit LBA mode However the operating system itself may not be capable of addressing more than two TB VT 100 UTILITY CONFIGURATION 5 5 3 1 Create Volume Set To create a volume set following the below steps 1 Select the Volume Set Function from the Main menu 2 Choose the Create Volume Set from Volume Set Func tion dialog box screen 3 The Create Volume From Raid Set dialog box appears This screen displays the existing arranged raid sets Select the raid set number a
24. main menu from the initial screen The RAID box will automatically go back to the initial screen when it does not receive any command in twenty seconds 5 5 1 Quick Volume Raid Setup Quick Volume Raid Setup is the fastest way to setup a raid set and volume set It only needs a few keystrokes to complete it Although disk drives have different capacity may be used in the raid set it will use the smallest capacity of disk drive as the capacity of all disk drives in the raid set The Quick Volume Raid Setup option creates a raid set with the following properties 1 All of the physical drives are contained in a raid set 2 The raid levels associated with hot spare capacity and stripe size are selected during the configuration process 3 A single volume set is created and consumed all or a portion of the disk capacity available in this raid set 4 If you need to add additional volume set using main menu Create Volume Set function The total physical drives in a specific raid set determine the RAID levels that can be implemented with the raid set Press the Quick Volume RAID Setup from the main menu all possible RAID levels screen will be displayed 67 VT 100 UTILITY CONFIGURATION ans Digital RAID Controller Quick Volume Raid Setup Raid 1 0 Raid 1 Spare Raid 3 Raid 5 Raid 3 Spare Raid 5 Spare A single volume set is created and consumed all or a portion of the disk capaci
25. multiple commands to be outstanding within a drive at the same time Drives that support NCQ have an internal queue where outstanding commands can be dynamically rescheduled or re ordered along with the necessary tracking mechanisms for outstanding and completed portions of the workload The RAID subsystem allows user to choose the SATA Mode slowest to fastest SATA150 SATA150 NCQ SATA300 SATA300 NCQ REES 45 LCD CONFIGURATION MENU 46 4 7 4 1 8 Capacity The maximum volume size is default in the first setting Enter the appropriate volume size to fit your application The capacity can also increase or decrease by the UP DOWN buttons Each volume set has a selected capacity which is less than or equal to the total capacity of the raid set on which it resides 4 7 4 1 9 Initialization Mode Press ENT to define FGrnd Init Foreground initialization or press ESC to define BGrnd Init Background initialization When FGrnd Init the initialization proceeds must be completed before the volume set ready for system accesses When BGrnd Init the initialization proceeds as a background task the volume set is fully accessible for system reads and writes The operating system can instantly access to the newly created arrays without requiring a reboot and waiting the ini tialization complete 4 7 4 2 Delete Existed Volume Set Choose the Delete Existed Volume Set option Using UP DOWN buttons to select the rai
26. same as your Ethernet address When you re connected to the Internet from the RAID controller Ethernet port a corre spondence table relates your IP address to the RAID controller s physical MAC address on the LAN ans Digital RAID Controller Quick Volume Raid Setup Raid Set Function Volume Gel Ethernet Configuration DHCP Function Enabled Local IP Address 192 168 001 100 HTTP Port Number 80 Telnet Port Number 23 Ethernet Address 00 04 D9 7F FF FF 104 VT 100 UTILITY CONFIGURATION 5 5 7 View System Events ans Digital RAID Controller Quick Volume Raid Setup Raid Set Function Time Device Event Type ElapseTime Errors 2004 1 1 12 00 00 H W Monitor Raid Powered On 2004 1 1 12 00 00 H W Monitor Raid Powered On 2004 1 1 12 00 00 H W Monitor Raid Powered On To View System Events move the cursor bar to the main menu and select the View System Events link then press the Enter key The RAID box s events screen appear Choose this option to view the system events information Time Device Event type Elapse Time and Errors The RAID box does not built the real time clock The time information is the relative time from the RAID box power on 5 5 8 Clear Events Buffer Use this feature to clear the entire events buffer information 5 5 9 Hardware Monitor Information The Hardware Monitor Information provides the temperature fan speed chassis fan and voltage of th
27. select the Delete pass through Disk item then press Enter key The Delete Pass Through confirmation screen will appear and press Yes key to delete it ans Digital RAID Controller Quick Volume Raid Setup Raid i hysical Drive Function P Delete Pass Throug Are you Sure No 5 5 4 5 Identify Selected Drive To prevent removing the wrong drive the selected disk Fault LED Indicator will light for physically locating the selected disk when the Identify Selected Device is selected VT 100 UTILITY CONFIGURATION ans Digital RAID Controller Quick Volume Raid Setup Raid Se nction Volu Physical Drive Function Physic Select The Drive 400 1GB RaidSet Member ST380013AS 500 1GB RaidSet Member ST380013AS 400 1GB Pass Through ST380013AS 400 1GB RaidSet Member ST380013AS 5 5 5 Raid System Function Quick Volume Raid Setup Raid Set Function Volume Set Function Physical Drives Raid System Function Ethernet Configuration View System Events Clear Event Buffer Hardware Monitor System information To set the Raid System Function move the cursor bar to the main menu and select the Raid System Function item and then press Enter key The Raid System Function menu will show all items Move the cursor bar to an item then press Enter key to select the desired function 5 5 5 1 Mute The Alert Beeper The Mute The Alert Beeper function item is
28. the Raid Set Function to define a global hot spare Select this method to con figure new raid sets and volume sets The Raid Set Volume Set Function configuration option allows you to associate volume set with partial and full raid set User can use this method to examine the existing configura tion Modify volume set configuration method provides the same functions as create volume set configuration method In volume set function you can use the modify volume set func tion to modify the volume set parameters except the capacity size To setup the Hot Spare option choose Raid Set Function from the main menu Select the Create Hot Spare and press Enter key to set the Hot Spare Set and press Enter key Select a Drive For Raid Set screen is displayed showing the IDE drive connected to the current controller Choose Raid Set Function from the main menu Select the Create Raid 64 VT 100 UTILITY CONFIGURATION Press UP DOWN buttons to select specific physical drives Press the En ter key to associate the selected physical drive with the current raid set Recommend use drives has same capacity in a specific raid set If you use drives with different capacities in an array all drives in the raid set will select the lowest capacity of the drive in the raid set The numbers of physical drives in a specific raid set determine the RAID levels that can be implemented with the raid set
29. the IDE drive connected to the current controller Press the up and down arrow keys to select specific physical drives Press the Enter key to associate the selected physical drive with the current raid set Repeat this step as many disk drives as user want to add in a single raid set To finish selecting IDE drives For Raid Set press Esc key A create raid set confirmation screen appears Press Yes key to confirm it ans Digital RAID Controller Quick Volume Raid Setup Raid Set Function Volume Set E Raid Set Function Physical Drv Serer Raid System AY Delete Raid Set Select IDE Drives For Raid Set Ch01 400 1GBST380013AS Ch02 500 1GBST380013AS Ch03 400 1GBST380013AS Ch04 400 1GBST380013AS View System j VT 100 UTILITY CONFIGURATION 4 An Edit The Raid Set Name dialog box appears Enter 1 to 15 alphanumeric characters to define a unique identifier for a raid set The default raid set name will always appear as Raid Set ans Digital RAID Controller Quick Volume Raid Setup Raid Set Function Volume Set Function Raid Set Function Physical Drives Create Raid Set ee SE Create Raid Set Ch01 4 Ch02 4 na Cho3 4 Edit The Raid Set Name Ch04 Jo Bag Set 00 5 5 2 2 Delete Raid Set To change a raid set you should first delete it and re create the raid set To delete a raid set select the raid set number that
30. to display the disk array Monitor Utility screen on your VT100 Terminal CONFIGURATION METHOD 3 3 Web browser based RAID manager To configure MobileRAID MR4UT on a local or remote machine you need to know its IP Address The IP address will default show in the LCD screen or Ethernet Configuration option on the VT100 utility configration Launch your firmware embedded TCP IP amp Web Browser based RAID manager by entering http IP Address in the web browser The provided LAN interface cable connects the MobileRAID MR4UT LAN port into a LAN port from your local network Use only shield cable to avoid radiated emission that may cause interruptions To ensure proper communications between the RAID subsystem and Web browser based RAID management Please connect the RAID box Ethernet LAN port to any LAN switch port The MobileRAID MR4UT has embedded the TCP IP amp Web Browser based RAID manager in the firmware User can remote manage the RAID box without adding any user specific software platform independent via standard web browsers directly connected to the 10 100 Ethernet RJ45 LAN port The Storage Console current configuration screen displays the current configuration of your MobileRAID MR4UT Detail procedures please refer to the Chapter 6 Web Browser based configuration method You must be logged in as administrator with local admin rights on the remote machine to remotely configure it The RAID box default user name
31. used to control the RAID box beeper Select the Yes and press Enter key in the dia log box to turn the beeper off 89 VT 100 UTILITY CONFIGURATION ans Digital RAID Controller Raid System Function Mute The Alert Beeper Hardware System in Raid System Function D Alert Beeper Setting Auto Activate Raid Set Alert Beeper Setting Change Password JBOD RAID Function Background Task Prio Maximum SATA Mode Host NCQ Mode Setti HDD Read Ahead Cad Stagger Power On Spin Down Idle HDD Empty HDD Slot LED HDD SMART Status Polling Auto Activate Raid Set Capacity Truncation Terminal Port Config Update Firmware Restart Controller 5 5 5 2 Alert Beeper Setting The Alert Beeper Setting function item is used to control the RAID box beeper Select Disabled and press Enter key in the dialog box to turn the beeper off ans Digital RA Mute The Alert Beeper Change Password JBOD RAID Function Background Task Prior Maximum SATA Mode Host NCQ Mode Setti HDD Read Ahead Cac Stagger Power On Alert Beeper Setting Spin Down Idle HDD Disabled nabled Empty HDD Slot LED HDD SMART Status Polling Capacity Truncation Terminal Port Config Update Firmware Restart Controller VT 100 UTILITY CONFIGURATION 5 5 5 3 Change Password The Change Password option allows user to set or clear the password protection feature Once the password has been set the user only can
32. value staggered power up function in its previous version firmware Sans Digital RAID controller has included the option for customer to select the disk drives sequentially stagger power up value The values can be selected 55 LCD CONFIGURATION MENU from 0 4 sec s to 6 sec s step which powers up one drive 4 7 6 10 Spin Down Idle HDD This function can automatically spin down the drive if it hasn t been accessed for a certain amount of time This value is used by the drive to determine how long to wait with no disk activity before turning off the spindle motor to save power 4 7 6 11 Empty HDD Slot LED Control The firmware has added the Empty HDD Slot LED option to setup the Fault LED light ON or OFF When each slot has a power LED for the HDD installed identify user can set this op tion to OFF Choose option ON the MobileRAID MR4UT will light the Fault LED if no HDD installed 4 7 6 12 HDD SMART Status Polling An external RAID enclosure has the hardware monitor in the dedicated backplane that can report HDD temperature status to the controller However PCI cards do not use backplanes if the drives are internal to the main server chassis The type of enclosure cannot report the HDD temperature to the controller For this reason HDD SMART Status Polling was added to enable scanning of the HDD temperature function It is necessary to enable HDD SMART Status Polling function before SMART information is a
33. 7 WEB BROWSER BASED CONFIGURATION 6 Web Browser based Configuration The RAID box web browser based configuration utility is firmware based and uses to configure raid sets and volume sets Use this utility to e Create raid set e Expand raid set e Define volume set e Add physical drive e Modify volume set e Modify RAID level stripe size e Define pass through disk drives e Modify system function e Update firmware and e Designate drives as hot spares If you need to boot the operating system from a RAID box you must first create a RAID volume by using LCD panel RS232 or Ethernet LAN port 6 1 Firmware embedded TCP IP amp web browser based RAID manager using the controller s 10 100 LAN port To ensure proper communications between the RAID box and Web browser based RAID management Please connect the RAID sys tem LAN port to any LAN switch port The RAID box has embedded the TCP IP amp Web Browser based RAID manager in the firmware User can remote manage the RAID box without adding any user specific software platform indepen dent via standard web browsers directly connected to the 10 100 RJ45 LAN port To configure RAID box on a local or remote machine you need to know its IP Address The IP address will default show in the LCD screen Launch your firmware embedded TCP IP amp Web Browser based RAID manager by entering http IP Address in the web browser eee 108 WEB BROWSER BASED
34. 85 5 5 3 5 Stop Volume Set Check 85 5 5 4 Physical Drives s entlrrrvart esati r Saen ELNA EEA VT EAE 86 5 5 3 6 Display Volume Set Info 86 5 5 4 1 View Drive Information sssssssssssrrrrrroesssssnnrrnrrrrrrne 87 5 5 4 2 Create Pass Through Disk 87 5 5 4 3 Modify Pass Through Disk 88 5 5 4 4 Delete Pass Through Disk ccceeeeee scene eens eee eeeees 88 5 5 4 5 Identify Selected Drive 88 5 5 5 Raid System FUNCTION cccceeceeeeeeeeeeeeseeeeeaeesaeeesanens 89 5 5 5 1 Mute The Alert Beeper ssessssssrrsssssssenserrsrrsrrserrssres 89 5 5 5 2 Alert Beeper Getting cence teeta eee eeeeeeeeeees 90 5 5 5 3 Change Password ssssssssrssrrerresnssnsennorrerrennasnnennes 91 5 5 5 4 JBOD RAID Funchon sete ee tenet eeeeeeeeeenae eens 91 5 5 5 5 Background Task Priority sssssssssssssssssssrrrrrrrrrsrrssns 92 5 5 5 6 Maximum SATA Mode 93 5 5 5 7 Host NCQ Mode Setting ssssssssssrrssssrrrsurrrnsenrnrrnsrrn 93 5 5 5 8 HDD Read Ahead Cache 94 5 5 5 9 Stagger Power Om 95 5 5 5 10 Spin Down Idle HDD 96 5 5 5 11 Empty HDD Slot LED cece Raa e eonan aa 96 5 5 5 12 HDD SMART Status Polling c cece eeeeeeeeee eee eeeees 97 5 5 5 13 Auto Activate Raid Get 97 5 5 5 14 Capacity Truncation cccceceeeeeeeeeeeeeeeeeeneeeneeeeaees 98 5 5 5 15 Terminal Port Conftg estes eee ee eee eaeeaeees 99 5 5 5 16 Update Firmware ccccccccecceceeeeceeeeeeeeeeaeeesaneeanes 99 5 5 5 17 Res
35. A Available Capacity Selected Capacity 400 0 GB 5 5 3 1 4 Strip Size This parameter sets the size of the stripe written to each disk in a RAID O 1 10 or 5 logical drive You can set the stripe size to 4 KB 8 KB 16 KB 32 KB 64 KB or 128 KB 79 VT 100 UTILITY CONFIGURATION be ans Digital RAID Controller Quick Volume Raid Setup Raid Set Functig Volume Set em oly Volume Creation Physical Drives RB Volume Name MR4UT VOL 00 Raid System Fu d Raid Leva Select Strip Size Ethernet Config Capacity A larger stripe size produces better read performance espe cially if your computer does mostly sequential reads However if you are sure that your computer does random reads more often select a small stripe size 5 5 3 1 5 Host Channel There are three kinds of host channel option for each volume to select SATA USB or SATA amp USB SATA eSATA host channel can access to the volume set USB USB host channel can access to the volume set SATA amp USB Both eSATA and USB host channel can concurrently access the volume set But user can only write through one channel at the time for data consistency ans Digital RAID Controller Quick Volume Raid Setup Raid Set Functig Volume Set am voy Volume Creation Physical Drives Volume Name MR4UT VOL 00 Raid System Fu d Raid Level 15 Ethernet Config Capacity 400 0GB View System E el Stripe Size 64K Host Chanin Select Host Chan
36. A cable Figure 2 5 An eSATA host connection enabled with a bracket that is cabled to a motherboard SATA connector The Mac Pro internal hard drive backplane mounting system is a very nice feature It comes with four trays and supports up to four internal 3 5 SATA hard drives Users simply add Sans Digital extension cable from those empty drive backplane to MobileRAID MR4UT re driver board to have the eSATA connector Sim ply screw empty slot bracket to fasten the MR4UT re driver board It does not occupy one useable slot The backplane con nector provides power and SATA signal to re driver board This can guarantee the signal from Mac pro internal SATA backplane connector to the eSATA connector can meet eSATA the electrical compliance requirements This low cost solution can boost the performance better than the currently PCIe x1 SATA eSATA host adapter 19 HARDWARE INSTALLATION In notebook applications there is an easy way to enable external Serial ATA connectivity through the use of a PCMCIA based con troller or a PCIe card An example of PCIe type of interconnect is shown in Figure 2 6 Figure 2 6 PCIe adapter card that supports an external SATA interface in a notebook 20 HARDWARE INSTALLATION 1 MobileRAID MR4UT can support multiple volumes up to 4 by Sans Digital s target mode multiplier emulation if host controllers support port multiplier function 2 The eSATA without port multipliers
37. AAEE 39 4 7 3 1 Create A New Raid Set oo cccececceeceeseeeeeeeeeseeneeeaeeaes 40 4 7 3 2 Delete Raid Get NENNEN 40 4 7 3 3 Expand Raid Get NNN 41 4 7 374 OfMINE RAID SOU EE 41 4 7 3 5 Activate Incomplete RaidGet 42 4 7 3 6 Create Hot Spare Disk 42 4 7 3 7 Delete Hot Spare Disk 42 4 7 3 8 Display Raid Set Information 42 4 7 4 Volume Set FUNCTIONS oo ececeee eset eee ee teeta eeeee eee enae enna 43 4 7 4 1 Create Raid Volume Set ccceecceceeeeeeeeeeeeeseeeeeeaeenes 43 4 7 4 1 1 Volume Name 44 4 7 4 1 2 Raid Level ENNEN 44 427 A e Ne KEE 44 4 7 4 1 4 Cache Mode oo cicicceeceeeeeee eset eee eee eens eeeeeneenae ene eea 45 4 7 4 1 5 Host Channel 45 4 7 4 1 6 Drive Number 45 4 7 4 1 7 SATA Xfer Mode 45 4377418 le Eer 46 4 7 4 1 9 Initialization Mode 46 4 7 4 2 Delete Existed Volume Get 46 4 7 4 3 Modify Volume Set Attribute 46 4 7 3 3 1 Volume Set Migration cc cceeeeeeee teense teense eee 47 4 7 4 4 Check Volume Set Consistency cccceccseceeeeeeeeeeeeaeeaes 48 4 7 4 5 Stop Volume Set Consistency Check 48 4 7 4 6 Display Volume Set Information 48 4 7 5 Physical Drive FUNCtIONS oo iceeeeeee cece eens ee eeeeeeeaeeeee eae ees 48 4 7 5 1 Display Drive Information ccceceeeeeeeeeeeeeeeeeeeeaeenes 50 4 7 5 2 Create Pass Through DISK ceceeeee eee eee eee ee teeta eee 50 4 7 5 3 Modify Pass Through Disk ccceeeee eee eee eens teeta eee 50 4 7 5 4 Delete Pass T
38. AID manager SMTP manager SNMP agent and Telnet function via LAN port e Support RAID box s API library for customer to write its own AP Enclosure Manage LAN port RS 232 port and LCD ment Form Factor REESEN Power Supply In out 180W 90 265V AC 5V 9A 12V 9A 3 3V 4 5A Dimension 4 84 x 6 51 x 9 11 123 x 165 6 x 232 mm Weight W O Drives 9 0 Ibs 4 1Kg 13 HARDWARE INSTALLATION 2 Hardware Installation 2 1 MobileRAID MR4UT The MobileRAID MR4UT supports four SATA II channels For SATA Il drive each channel can run up to 300MB S Frontview Rearview O O O 1 Disk Fault LED 2 Disk Activity LED 3 Power and Global Fault LED System Fan RS232 Port LAN Port USB Port Drive USB Port Host eSATA port 10 Power Supply Fan 11 On Off Switch 12 Power Connector 13 LCD Panel with Keypad HARDWARE INSTALLATION 2 2 Installation Step 1 Install the Drives in the MobileRAID MR4UT 1 Gently slide the drive tray out from the MobileRAID MR4UT 2 Install the drive into the drive tray and secure the drive to the drive tray by four of the mounting screws Figure 2 1 Secure the drive to the drive tray Note Please secure four of the mounting screws to the tray other wise the MR4UT may produce an annoying BUZZ sound in few environments 3 After all drives are in the drive tray slide all of them back into the MobileRAID MR4UT and make sure you latched the
39. Allow Read Ahead Default Enabled When Enabled the drive s read ahead cache algorithm is used providing maximum perfor mance under most circumstances e Stagger Power On Control In a PC system with only one or two drives the power can sup ply enough power to spin up both drives simultaneously But in systems with more than two drives the startup current from spinning up the drives all at once can overload the power sup ply causing damage to the power supply disk drives and other system components This damage can be avoided by allowing the host to stagger the spin up of the drives New SATA drives have support staggered spin up capabilities to boost reliability Staggered spin up is a very useful feature for managing multiple disk drives in a storage subsystem It gives the host the abil ity to spin up the disk drives sequentially or in groups allowing the drives to come ready at the optimum time without straining the system power supply Staggering drive spin up in a multiple drive environment also avoids the extra cost of a power supply designed to meet short term startup power demand as well as steady state conditions Sans Digital RAID controller has included the option for customer to select the disk drives sequentially stagger power up value The values can be selected from 0 4s to 6s per step which powers up one drive e Spin Down Idle HDD Minutes This function can automatically spin down the drive if it hasn t been acc
40. Array Expansion Free Space 40GB Volume 1 40GB D Volume 0 40GB C Disk 0 Disk 1 Disk 2 40 GB 40 GB 40 GB Array A120GB The RAID box redistributes the original volume set over the original and newly added disks using the same fault tolerance configuration The unused capacity on the expand raid set can then be used to create an additional volume set with a different fault tolerance setting if required by the user After Array Expansion Adding One Disk Free Space 80GB Volume 1 40GB D Volume 0 40GB C Disk 0 Disk 1 Disk 2 Disk 3 40 GB 40GB 40GB 40GB Array A 160GB 147 APPENDIX The RAID box redistributes the original volume set over the original and newly added disks using the same fault tolerance configuration The unused capacity on the expand raid set can then be used to create an additional volume sets with a different fault tolerance setting if user need to change Online RAID Level and Stripe Size Migration For those who wish to later upgrade to any RAID capabilities a system with Sans Digital online RAID level stripe size migration allows a simplified upgrade to any supported RAID level without havir to reinstall the operating system The RAID box can migrate both the RAID level and stripe size of an existing volume set while the server is online and the volume set is in use Online RAID level stripe size migration can prove helpful during performance tuning activities as well as
41. Enter the SNMP Trap IP Address e SNMP System Configurations About community Community name acts as a password to screen accesses to the SNMP agent of a particular network device Type in the community names of the SNMP agent Before access is granted to a request station this station must incorporate a valid community name into its request otherwise the SNMP agent will deny access to the system Most network devices use public as default of their community names This value is case sensitive e SNMP Trap Notification Configurations Please refer to Appendix D of Event Notification Table WEB BROWSER BASED CONFIGURATION gata oul kee a Technelogs Corporation 6 7 5 View Events Mute Beeper To view the RAID box system events information move the mouse cursor to the main menu and click on the View Events Mute Beeper link The RAID box System Events Information screen appears Choose this option to view the system events information Timer Device Event type Elapse Time and Errors The RAID box does not built the real time clock The time information is the relative time from the RAID box power on ER rn Fee oul Areca Technolegs Corporation 129 WEB BROWSER BASED CONFIGURATION 130 6 7 6 Generate Test Event Use this feature to generate a event to test the email address which configures by the Altert By Mail Config option mnt he Or te od Veen Technolog Corporation e
42. Figure 2 4 Figure 2 3 Connect MobileRAID MR4UT to the host computer e eSATA Cables and Connectors The MobileRAID MR4UT uses the latest in eSATA technology allowing interface or bus transfer rates of up to 3 0Gbps The eSATA was developed for the use of shielded cables outside the PC The eSATA cable is fully shielded cable with separation of the outer shielding for chassis ground and signal ground Hot plug ging supported and maximum length increased to 2 meters Since the market demand for eSATA external storage is on the rise a system released almost has added eSATA connectors in the main board connector requirements or install a PCI Host controller with external eSATA connection This provides an easy and reliable way to equip a system with an external SATA connection If systems without supporting eSATA connector you can also use a cable from an internal SATA connector up to a receptacle on a PCI bracket as shown in Figure 2 5 In this case it should be noted that the signal from internal controller to the eSATA con nector should meet eSATA the electrical compliance requirements outlined Sans Digital would suggest utilize a PCI or PCIe SATA host controller that supports hot swap NCQ and SATA PM connections This can make user to leverage above features supported on the MobileRAID MR4UT 18 HARDWARE INSTALLATION Bracket Motherboard ID J d Se DS S eSATA cable SAT
43. I drive channel can support up to SATA II which runs up to 300MB s NCQ is a command protocol in Serial ATA that can only be implemented on native Serial ATA hard drives It allows multiple commands to be outstanding within a drive at the same time Drives that support NCQ have an internal queue where outstanding commands can be dynamically rescheduled or re ordered along with the necessary tracking mechanisms for out standing and completed portions of the workload The RAID box allows user to choose the SATA Mode SATA150 SAT150 NCQ SAT300 SATA300 NCQ e Host NCQ Mode Setting NCQ is a performance enhancement for SATA II category disk drives and works similarly to the way command tag queuing CTQ works in SCSI command set based disk drives NCQ algorithms allow I O operations to be performed out of order to optimize and leverage disk read write head positioning and ultimately overall performance Since there are some compat ible with MobileRAID MR4UT it provides the following option to tune the function The default setting on this option is Disable for better compatibility The MobileRAID MR4UT provides the following host NCQ mode setting Disable No NCQ support ESB2 MACPro Siliconlimage Intel ESB2 MACPro and Sili conimage SATA controller ICH Intel ICH series SATA controller Marvell6145 Marvell 6145 SATA controller nVidia Nvida SATA controller 123 WEB BROWSER BASED CONFIGURATION 124 e HDD Read Ahead Cache
44. Meaning Action Create RaidSet New raidset created aa Delete RaidSet Raidset deleted PF Expand RaidSet Raidset expanded Rebuild RaidSet Raidset rebuilding RaidSet Urgent Raidset degraded Replace HDD Degraded D Hardware Monitor Event DRAM 1 Bit ECC f Urgent DRAM 1 Bit ECC error Check DRAM DRAM Fatal Urgent DRAM fatal error Check the DRAM module and Error encountered replace with new one if required Controller Over f Urgent Abnormally high Check air flow and cooling fan of Temperature temperature detected f theenclosure and contact us on controller over 60 degree Hdd Over Temperature Abnormally high Check air flow and cooling fan of temperature detected the enclosure on Hdd over 55 degree Fan Failed Urgent Cooling Fan failure f Check cooling fan of the or speed below enclosure and replace with a new 1700RPM one if required Controller Serious Controller Temp temperature back to Recovered normal level Hdd Temp Recovered Power On With Warning Raid power on with Battery Backup battery backuped Incomplete Serious Some RAID set Check disk information to find out RAIDDiscovered member disks which channel missing missing before power on 143 APPENDIX Telnet Log Serious Ja Telnet login detected InVT100 Log In f Serious a VT100 login detected API Log In a API login detected missing before power migration Lost Rebuilding Urgent Some rebuilding Reinserted the mi
45. Q mode setting Disable No NCQ support ESB2 MACPro Siliconlimage Intel ESB2 MACPro and Siliconimage SATA controller ICH Intel ICH series SATA controller Marvell6145 Marvell 6145 SATA controller nVidia Nvida SATA controller 4 7 6 8 HDD Read Ahead Cache Allow Read Ahead Default Enabled When Enabled the drive s read ahead cache algorithm is used providing maximum perfor mance under most circumstances 4 7 6 9 Stagger Power On Control In a PC system with only one or two drives the power can sup ply enough power to spin up both drives simultaneously But in systems with more than two drives the startup current from spinning up the drives all at once can overload the power sup ply causing damage to the power supply disk drives and other system components This damage can be avoided by allowing the host to stagger the spin up of the drives New SATA drives have support staggered spin up capabilities to boost reliability Staggered spin up is a very useful feature for managing multiple disk drives in a storage subsystem It gives the host the abil ity to spin up the disk drives sequentially or in groups allowing the drives to come ready at the optimum time without straining the system power supply Staggering drive spin up in a multiple drive environment also avoids the extra cost of a power supply designed to meet short term startup power demand as well as steady state conditions Sans Digital has supported the fixed
46. RT Spinup Retries 100 97 SMART Calibration Retries N A N A 5 5 4 2 Create Pass Through Disk ans Digital RAID Controller Quick Volume Raid Setup Raid Se action Volu Physical Drive Function Physic Disk drive is not controlled by the RAID box firmware thus it can not be a part of a volume set The disk drive is available to the operating system as an individual disk It is typically used on a system where the operating system is on a disk not controlled by the RAID box firmware The Host Channel Drive Number Cache Mode and SATA Xfer Mode items detailed de scriptioin refer to the Create Volume Set section ae u a a a EH 87 VT 100 UTILITY CONFIGURATION 88 5 5 4 3 Modify Pass Through Disk Use this option to modify the Pass Through Disk Attribute To modify Pass Through Disk parameters values from Pass Through Disk pool move the cursor bar to the Physical Drive Function menu and select the Modify Pass Through Drive option and then press Enter key The Physical Drive Function menu will show all Raid Pass Through Drive number option Move the cursor bar to a desired item then press Enter key to show all Pass Through Disk attribute Select the parameter from the list you which to change press Enter key to modify it 5 5 4 4 Delete Pass Through Disk To delete Pass Through drive from the Pass through drive pool move the cursor bar to the Physical Drive Function menu and
47. Raid set If a disk drive used in a RAID Volume Set fails then the Global Hot spare will automatically take its place and he data previously located on the failed drive is reconstructed on the Global Hot spare 149 APPENDIX Important The hot spare must have at least the same capacity as the drive it replaces For this feature to work properly the global hot spare must have at least the same capacity as the drive it replaces Global Hot spares only work with RAID level 1 10 3 or 5 volume set The Create Hot Spare option gives you the ability to define a global hot spare disk drive To effectively use the global hot spare feature you must always maintain at least one drive that is marked as a global spare Hot Swap Disk Drive Support The RAID box includes a protection circuit that supports the replacement of SATA hard disk drives without having to shut down or reboot the system A removable hard drive tray can deliver hot swappable fault tolerant RAID solutions at prices much less than the cost of conventional SCSI hard disk RAID controllers This feature provides advanced fault tolerant RAID protection and online drive replacement Auto Declare Hot Spare If a disk drive is brought online into a system operating in degraded mode RAID box will automatically declare the new disk as a spare and begin rebuilding the degraded volume The Auto Declare Hot Spare function requires that the smallest drive contained
48. SS MOBILERAID MR4UT DETAILED USER S MANUAL v1 0 WARRANTY The information in this document is subject to change without notice We make no warranty of any kind regarding this material including but not limited to the implied warranties or merchantability and fitness for a particular purpose Furthermore we shall not be liable for errors con tained herein or for incidental or consequential damage in connection with the furnishing performance or use of this material FCC STATEMENT This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against interfer ence in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in ac cordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation CE Mark This equipment is in conformity with EM directive Contents Introduction KEE 10 1 1 System Architecture 10 1 1 1 eSATA USB 2 0 Host Interface NENNEN 10 1 1 2 SATA Il Drive Interface NENNEN 11 1 2 RAID Box Controller Board sssssssssssrrsssrsssnsnnrrrrrrrrnrrrrssens 11 1 2 1 Unparalleled Performance 11 1 2 2 Unsurpassed Data Availability NN 12 1 2 3 Easy RAID Management 12 Hardwar
49. System Config uration menu will show all items Move the cursor bar to an item then press Enter key to select the desired function e System Beeper Setting The System Beeper Setting function item is used to Disabled or Enabled the RAID box alarm tone generator e Background Task Priority The Raid Background Task Priority is a relative indication of how much time the RAID box devotes to a background opera tion such as rebuilding or migrating The RAID box allows user to choose the background priority to balance volume set ac cess and background tasks appropriately For high array perfor mance specify a Low value e Terminal Port Configuration Speed setting values are 1200 2400 4800 9600 19200 38400 57600 and 115200 Stop Bits values are 1 bit and 2 bits Note Parity value is fixed at None Data Bits value is fixed at 8 bits WEB BROWSER BASED CONFIGURATION e JBOD RAID Configuration JBOD is an acronym for Just a Bunch Of Disk A group of hard disks in a RAID box are not set up as any type of RAID configuration All drives are available to the operating system as an individual disk JBOD does not provide data redundancy User needs to delete the RAID set when you want to change the op tion from the RAID to the JBOD function e Max SATA Mode Supported Within the RAID box the host eSATA USB 2 0 channels act as a target and 4 Serial ATA II bus are connected to the drive The SATA I
50. T to confirm the Cre ate function Press ENT to define FGrnd Init Foreground initialization or press ESC to define BGrnd Init Background initialization The controller will be gin to initialize the volume set you have just configured If space remains in the raid set the next volume set can be configured Repeat steps 8 to 13 to configure another volume set 4 7 Navigation Map of the LCD The password option allows user to set or clear the raid subsys tem s password protection feature Once the password has been set the user can only monitor and configure the raid subsystem by providing the correct password The password is used to pro tect the MobileRAID MR4UT from unauthorized entry The RAID box will check the password only when entering the Main menu from the initial screen The RAID box will automatically go back to the initial screen when it does not receive any command in twenty seconds The RAID box password is default setting at 0000 by the manufacture 36 LCD CONFIGURATION MENU sword Areca Technology P ARC xXXX Ready F it bi Password Je is seta Vert Password Password Figure 4 7 1 S es 4 7 1 One step creation Using LCD Hot Key This section explains how to use the LCD Hot Key one step creation RAID configuration to configure your MobileRAID MR4UT It is a menu driven program residing in the firmware which allows you to scroll through various menus and submenus and sele
51. a Plain English e mails with no software required g ftege weg SW Areca Technology Corporation When you open the mail configuration page you will see following settings SMTP server IP Address Enter the SMTP server IP address which is not McRAID storage manager IP Ex 192 168 0 2 Sender Name Enter the sender name that will be shown in the outgoing mail Ex RaidController_1 Mail address Enter the sender email that will be shown in the outgoing mail but don t type IP to replace domain name Ex RaidController_1 sansdigital com 127 WEB BROWSER BASED CONFIGURATION 128 Account Enter the valid account if your SMTP mail server need authentication Password Enter the valid password if your SMTP mail server need authentication 6 7 4 SNMP Configuration To configure the raid controller SNMP function move the cursor bar to the main menu and click on the System Controls link The System Controls menu will show all items Move the cursor bar to the SNMP Configuration item then press Enter key to select the desired function This function can only set by the web based configuration The firmware contains SNMP Agent manager monitors all system events and user can use the SNMP function from the web setting with no Agent software required Please refer to Appendix D SNMP operation amp Definition for more detail information about the SNMP trap and definition e SNMP Trap Configurations
52. a global hot spare Select this method to configure new raid sets and volume sets This configuration option allows you to associate volume set with partial and full raid set To setup the Hot Spare option choose Raid Set Function from the main menu Select the Create Hot Spare and press ENT to set the Hot Spare Choose Raid Set Function from the main menu Select the Create Raid Set and press ENT Select a drive for raid set from the SATA drive connected to the MR4UT Press UP DOWN buttons to select specific physical drives Press the ENT key to associate the selected physical drive with the current raid set Recommend use drives has same capacity in a specific raid set If you use drives with different capacities in an array all drives in the raid set will select the lowest capacity of the drive in the raid set The numbers of physical drives in a specific raid set determine the RAID levels that can be implemented with the raid set RAID 0 requires 1 or more physical drives per raid set RAID 1 requires at least 2 physical drives per raid set RAID 1 Spare requires at least 3 physical drives per raid set RAID 3 requires at least 3 physical drives per raid set RAID 5 requires at least 3 physical drives per raid set RAID 3 Spare requires at least 4 physical drives per raid set RAID 5 Spare requires at least 4 physical drives per raid set After adding physical drives to the current raid set as de
53. accessible to the management application e Compiling the MIB description file with the management application MIB Compilation and Definition File creation Before the manager application accesses the RAID controller user needs to integrate the MIB into the management application s da tabase of events and status indicator codes This process is known as compiling the MIB into the application This process is highly vendor specific and should be well covered in the User s Guide of your SNMP application Ensure the compilation process successfully integrates the contents of the Sansdigital MIB file into the traps database Location for MIB Depending upon the SNMP management application used the MIB must be placed in a specific directory on the network management station running the management application The MIB file must be manually copied to this directory For example SNMP Management Application MIB Location HP OpenView OV MIBS Netware NMS NMS SNMPMIBS CURRENT Your management application may have a different target direc tory Consult the management application s user manual for the correct location 139 APPENDIX Appendix C 140 Technical Support Sans Digital Technical Support provides several options for users to access information and updates We encourage you to use one of our electric services which provide product information updates for the most efficient service and support If you decide to con
54. aes 146 Online Capacity Expansion cccceccceeeeeeeee eens eee eee eaeeaenenees 146 Online RAID Level and Stripe Size Mioration 148 Online Volume Expansion eee eee eee eens eee eae enenenees 148 Highzavailability EE 149 Global Hot Gpares NENNEN 149 Hot Swap Disk Drive Support ssssssssssssssssssrrrrerrrrrrrrrssrssen 150 Auto Declare Hot Spare ssssssssssrssrrerresssensrrrerrsnnernnennennes 150 Auto Rebuilding sorin seen tein are ae ees 151 Adjustable Rebuild Priority s ss sssssssssrerrssnnrrssrerrrsrerrrrssrrnne 151 High Reliability EE 152 Hard Drive Failure Prediction sssssssssssssssssrrrrerrrrrrrrrssrssrn 152 Auto REAaSSIGN eg 152 Consistency Check EE 153 Data Protecto ener ter NENNEN EA EEEE EES 153 RECOVERY ROM eege na ar OREA EREA Ke ee Ee dee e even ees 153 Wnderstanding RAID ssa vices etter a a lita eee NEEN 154 RAID A EE 154 RAID Seege d Red SEN Eden 156 RAID Nee EAR EEN wale olor ov gaa waa eae 157 JBOD geed eee bag hex edge ee dees EE EE 157 INTRODUCTION 1 Introduction The MobileRAID MR4UT is a high performance SATA II drive bus disk array controller When properly configured the RAID box can provide non stop service with a high degree of fault tolerance through the use of RAID technology and advanced array management features The RAID box unleashes a truly innovative eSATA 3 0Gbps USB2 0 solu tion for use with your PC and Mac The HOST interface on the host may be located
55. ahead cache algorithm is used providing maximum performance under most circumstances 5 5 5 9 Stagger Power On In a PC system with only one or two drives the power can sup ply enough power to spin up both drives simultaneously But in systems with more than two drives the startup current from spinning up the drives all at once can overload the power sup ply causing damage to the power supply disk drives and other system components This damage can be avoided by allowing the host to stagger the spin up of the drives New SATA drives have support staggered spin up capabilities to boost reliability Staggered spin up is a very useful feature for managing multiple disk drives in a storage subsystem It gives the host the abil ity to spin up the disk drives sequentially or in groups allowing the drives to come ready at the optimum time without straining the system power supply Staggering drive spin up in a multiple drive environment also avoids the extra cost of a power supply designed to meet short term startup power demand as well as steady state conditions The RAID box has included the option for customer to select the disk drives sequentially stagger power up value The values can be selected from 0 4s to 6s per step which powers up one drive ans Digital RAID Controller Raid System Function Mute The Alert Beeper Alert Beeper Setting Change Password JBOD RAID Function Background Task Priority Maximum SATA Mod Host NCQ Mode S
56. al Dri Raid Syste Ethernet Co Clear Event Hardware 5 5 6 2 Local IP Address ans Digital RAID Controller Quick Volume Raid Setup Raid Set Function Ethernet Configuration DHCP Function Enabled Local IP Address 192 168 001 1000 HTTP Port Number J Edit The local IP Address Telnet Port Number 2 168 001 100 Ethernet Address Volume Set If you intend to set up your client computers manually make sure that the assigned IP address is in the same range of your default router address and that it is unique to your private network However we would highly recommend that if you have a network of computers and the option to assign your TCP IP client configurations automatically please do An IP address allocation scheme will reduce the time it takes to set up cli ent computers and eliminate the possibilities of administrative errors To manually configure the IP address of the RAID box move the cursor bar to the main menu Ethernet Configura tion function item and then press the Enter key The Ethernet Configuration menu appears on the screen Move the cursor VT 100 UTILITY CONFIGURATION bar to Local IP Address item then press Enter key to show the default address setting in the RAID controller You can reassign the IP address of the controller 5 5 6 3 HTTP Port Number To manually configure the HTTP Port Number of the controller mov
57. ants to automatically continue to work while the SAS RAID controller is powered on the user can set the auto Activate Raid Set option to enable The Raid State will change to Degraded Mode while it powers on 5 5 5 14 Capacity Truncation The RAID box uses drive truncation so that drives from differing vendors are more likely to be able to be used as spares for each other Drive truncation slightly decreases the usable capacity of a drive that is used in redundant units The controller provides three truncation modes in the sys tem configuration Multiples Of 10G Multiples Of 1G and No Truncation ans Digital RAID Controller Raid System Function Mute The Alert Beeper ert Beeper Setting hange Password BOD RAID Function ackground Task Priority aximum SATA Mode ost NCQ Mode Setting DD Read Ahead Cache agger Power On pin Down Idle HDD mpty HDD Slot LED Truncate Disk Capacity DD SMART Status P uto Activate Raid Set To Multiples of 10G Capacity Truncation To Multiples of 1G Terminal Port Config Disabled Update Firmware Restart Controller OF J zW PIMNHOHIT Multiples Of 10G If you have 120 GB drives from different vendors chances are that the capacity varies slightly For example one drive might be 123 5 GB and the other 120 GB Multiples Of 10G truncates the number under tens This makes the same capacity for both of these drives so that one could replace the other Multipl
58. apter section 4 4 Designating drives as Hot Spares 4 7 3 7 Delete Hot Spare Disk To delete hot spare press UP DOWN buttons to choose the Delete Hot Spare Disk option Using UP DOWN buttons to select the hot spare number that user want to delete and then press ENT to select it The confirmation screens appear and press ENT to delete the hot spare 4 7 3 8 Display Raid Set Information Choose the Display Raid Set Information option and press ENT Using UP DOWN buttons to select the raid set number Then the raid set information will be displayed Using UP DOWN buttons to see the raid set information it will show Raid Set Name Total Capacity Free Capacity Number of Member Disks Min Member Disk Capacity Raid Set State and Raid Power Status LCD CONFIGURATION MENU 4 7 4 Volume Set Functions A volume set is seen by the host system as a single logical de vice It is organized in a RAID level with one or more physical disks RAID level refers to the level of data performance and protection of a volume set A volume set capacity can consume all or a portion of the disk capacity available in a raid set Multiple volume sets can exist on a group of disks in a raid set Additional volume sets created in a specified raid set will reside on all the physical disks in the raid set Thus each volume set on the raid set will have its data spread evenly across all the disks in the raid set To enter a Volume Set Functions
59. ar to 1 10 6 RAID 0 RAID 0 Higher Writes are Writes are hana slower than f slower than single a single a single disk drive disk 158
60. at ible with MR4UT It provides the following option to tune the function The default setting on this option is Disable for better compatibility The MobileRAID MR4UT provides the following host NCQ mode setting EH 93 VT 100 UTILITY CONFIGURATION Mute The Alert Beeper Alert Beeper Setting Change Password JBOD RAID Function Background Task Priority Maximum SATA Mode Spin Down Idle ESB2 MACPro Siliconlmage Empty HDD Slot CH HDD SMART Std Marvell 6145 Auto Activate Rail Vidia Capacity Truncation Terminal Port Config Update Firmware Restart Controller Disable No NCQ support ESB2 MACPro Siliconlimage Intel ESB2 MACPro and Sili conimage SATA controller ICH Intel ICH series SATA controller Marvell6145 Marvell 6145 SATA controller nVidia Nvida SATA controller 5 5 5 8 HDD Read Ahead Cache ans Digital RAID Controller Raid System Function Mute The Alert Beeper Alert Beeper Setting Change Password JBOD RAID Function Background Task Priority Maximum SATA Mode Host NCQ Mode Setting HDD Read Ahead Cache Stagger Power On Spin Down Idle HD HDD Read Ahead Cache Empty HDD Slot LP HDD SMART Stat aia Auto Activate Raid Capacity Truncatio Terminal Port Config Update Firmware Restart Controller Disable Maxtor Disabled VT 100 UTILITY CONFIGURATION Allow Read Ahead Default Enabled When Enabled the drive s read
61. ating in an equivalent terminal emulation mode all RAID box monitoring configuration and administration functions can be exercised from the VT100 terminal There are a wide variety of Terminal Emulation packages but for the most part they should be very similar The following setup procedure is an example Setup VT100 Terminal in Windows sys tem using Hyper Terminal use Version 3 0 or higher Step 1 From the Desktop open the start menu Pick Programs Accessories Communications and Hyper Terminal Open Hyper Terminal requires version 3 0 or higher Step 2 Open HYPERTRM EXE and enter a name for your Termi nal Click OK 26 CONFIGURATION METHOD eee in na Step 3 Select an appropriate connecting port in your Terminal Click OK Configure the port parameter settings Bits per second 115200 Data bits 8 Parity None Stop bits 1 Flow control None Click OK Ss Step 4 Open the File menu and then open Properties CONFIGURATION METHOD 28 Step 6 Open the Settings Tab Function arrow and ctrl keys act as Terminal Keys Backspace key sends CrtIl H Emulation VT100 Telnet terminal VT100 Back scroll buffer lines 500 Click OK Now the VT100 is ready to use After you have finished the VT100 Terminal setup you may press X key in your Terminal to link the RAID subsystem and Ter minal together Press X key
62. ation tick on the Confirm The Op eration and click on the Submit button to complete the action User can modify all values except the capacity oves beren oa eee SW Areca Techmedogs Corporation 118 WEB BROWSER BASED CONFIGURATION 6 5 3 1 Volume Expansion Use this raid set expands to expand a raid set when a disk is added to your system The expand capacity can use to enlarge the volume set size or create another volume set The modify volume set function can support the volume set expansion func tion To expand volume set capacity value from raid set system function move the cursor bar to the volume set Volume capac ity item and entry the capacity size Tick on the Confirm The Operation and click on the Submit button to complete the action The volume set start to expand 6 5 3 2 Volume Set Migration Migrating occurs when a volume set is migrating from one RAID level to another a volume set strip size changes or when a disk is added to a raid set Migration status is displayed in the vol ume status area of the RaidSet Hierarchy screen 6 5 4 Check Volume Set To check a volume set from a raid set 1 Click on the Check Volume Set link 2 Tick on the volume set from the list that you wish to check Tick on Confirm The Operation and click on the Submit button Use this option to verify the correctness pf the redundant data in a volume set For example in a system with
63. ation Protocol is a protocol that lets network administrators manage centrally and automate the assignment of IP Internet Protocol configurations on a com puter network When using the Internet s set of protocols TCP IP in order for a computer system to communicate to another computer system it needs a unique IP address Without DHCP the IP address must be entered manually at each computer sys tem DHCP lets a network administrator supervise and distribute IP addresses from a central point The purpose of DHCP is to provide the automatic dynamic allocation of IP client configu rations for a specific time period called a lease period and to eliminate the work necessary to administer a large IP network To manually configure the IP address of the controller move the cursor bar to the main menu Ethernet Configuration function item and then press the Enter key The Ethernet Configuration menu appears on the screen Move the cursor bar to DHCP Function item then press Enter key to show the DHCP setting Select the Disabled or Enabled option to enable or disable the DHCP function 101 VT 100 UTILITY CONFIGURATION 102 ans Digital RAID Controller Quick Volume Raid Setup Raid Set Function Ethernet Configuration DHCP Function Enabled Local IP Address 192 168 001 100 HTTP Port Numba Select DHCP Setting Telnet Port Numb Ethernet Address Disabled Enabled Volume Set Physic
64. ccessible This function is disabled by default 4 7 6 13 Disk Capacity Truncation Mode Sans Digital RAID box use drive truncation so that drives from differing vendors are more likely to be able to be used as spares for each other Drive truncation slightly decreases the usable capacity of a drive that is used in redundant units The RAID box provides three truncation modes in the system configuration Multiples Of 10G Multiples Of 1G and No Trunca tion Multiples Of 10G If you have 120 GB drives from different vendors chances are that the capacity varies slightly For 56 LCD CONFIGURATION MENU example one drive might be 123 5 GB and the other 120 GB Multiples Of 10G truncates the number under tens This makes the same capacity for both of these drives so that one could replace the other Multiples Of 1G If you have 123 GB drives from different vendors chances are that the capacity varies slightly For example one drive might be 123 5 GB and the other 123 4 GB Multiples Of 1G truncates the fractional part This makes the same capacity for both of these drives so that one could replace the other Disabled It does not truncate the capacity 4 7 6 14 Terminal Port Configuration Parity value is fixed at None Handshaking value is fixed at None Speed setting values are 1200 2400 4800 9600 19200 38400 57600 and 115200 Stop Bits values are 1 bit and 2 bits To set or change the RAID box COMA c
65. ce it may be caused by noise If always happen please check power supply or contact to us Device Urgent HDD SMART failure Replace HDD Failed SMART 141 APPENDIX PassThrough Disk Inform Pass Through Disk Created created PassThrough Disk Inform Pass Through Disk Modified modified PassThrough Disk Inform Pass Through Disk Deleted deleted B Volume Event event tevel_ Meaning EE Start Initialize Volume initialization has started a Start Rebuilding Volume rebuilding has started Ps Start Migrating Volume migration has started Po Start Checking Volume parity checking has started Complete Init Volume initialization completed Po Complete Rebuild Volume rebuilding completed P Complete Migrate Volume migration completed Po Complete Check Volume parity checking completed Po Create Volume New volume created Po Delete Volume Volume deleted Po Modify Volume Volume modified aaa Volume Degraded Volume degraded Replace HDD Volume Failed Volume failure Po Failed Volume Urgent Failed Volume revived Revived Abort Warning J Initialization been aborted Initialization EE Warning Rebuiaing spores abort migration warning Migration aborea abort checking warning Party bel ES warning inttatzation stoppea OOOO Stop Rebutsing warning Rebuiding stomped Stop Migration warning Migration stoppea OOOO stop checking warning J Party check stopped OU 142 APPENDIX C RAID Set Event tevel_
66. cess of 210MB s sustained RAID 5 reads and over 176MB s RAID 5 sequential writes The result is superior overall perfor mance compared to other 4 bay eSATA solution High transfer rates make MobileRAID MR4UT well suited for audio video appli cation especially the rapidly growing demand from the Mac Video Editing markets With the host SATA controller supported port multiplier function both eSATA and USB2 0 host channel can support multiple volumes up to 4 by Sans Digital s target mode multiplier emulation i 11 INTRODUCTION 12 1 2 2 Unsurpassed Data Availability The MobileRAID MR4UT provides RAID levels 0 1 10 3 5 Single Disk or JBOD RAID configurations Its high data availabil ity and protection derives from the following capabilities Online RAID Capacity Expansion Array Roaming Online RAID Level Stripe Size Migration Global Online Spare Automatic Drive Fail ure Detection Automatic Failed Drive Rebuilding Disk Hot Swap Online Background Rebuilding Instant Availability Background Initialization Auto Reassign Sector and Redundant Flash Image Sans Digital greater than two TB support allows for very large volume set application in 64 bit environment such as data mining and managing large databases 1 2 3 Easy RAID Management Manual configuration and monitoring can be done through the LCD Control Panel RS 232 and LAN port The LCD Hot Key sup ports one step creation RAID configuration to simplify the firstly
67. commend use drives have same capacity in a specific array If you use drives with different capacities in an array all drives in the raid set will select the lowest capacity of the drive in the raid set The numbers of physical drives in a specific array determine the RAID lev els that can be implemented with the array RAID 0 requires 1 or more physical drives RAID 1 requires at least 2 physical drives RAID 1 Spare requires at least 3 physical drives RAID 3 requires at least 3 physical drives RAID 5 requires at least 3 physical drives RAID 3 Spare requires at least 4 physical drives RAID 5 Spare requires at least 4 physical drives Highlight RAID level for the volume set and press Enter to confirm it Set the capacity size for the current volume set After Highlight RAID level and press Enter The selected capacity for the current volume set is displayed Using the up and down arrow key to create the current volume set capacity size and press Enter key to confirm it The available stripe sizes for the current volume set are displayed Using up and down arrow key to select the current volume set stripe size and press Enter key to confirm it This parameter specifies the size of the stripes written to each disk in a RAID O 1 10 or 5 Volume Set You can set the stripe size to 4 KB 8 KB 16 KB 32 KB 64 KB or 128 KB A larger stripe size provides better read performance especially if your computer does mostly sequential read
68. configure raid sets and volume sets Because the utility resides in the RAID controller firmware its operation is independent of the operating systems on your computer Use this utility to e Create raid set e Expand raid set e Define volume set e Add physical drive e Modify volume set e Modify RAID level stripe size e Define pass through disk drives e Update firmware e Modify system function and e Designate drives as hot spares Keyboard Navigation The following definition is the VT 100 RAID configuration utility key board navigation Key Function Enter Key Submit selection function ESC Key Return to previous screen 5 1 Configuring Raid Sets Volume Sets You can configure raid sets and volume sets with VT 100 terminal function using Quick Volume Raid Setup or Raid Set and Volume Set Function configuration method Each configuration method re quires a different level of user input The general flow of operations for raid set and volume set configuration is 61 VT 100 UTILITY CONFIGURATION Designate hot spares pass through optional Choose a configuration method Create raid sets using the available physical drives Define volume sets using the space in the raid set Initialize the volume sets logical drives and use volume sets in the host os 5 2 Designating Drives as Hot Spares All unused disk drive that is not part of a raid set can be created as a Hot Spare The Q
69. ct among the predetermined configuration options This function provides an easy way to enter the Quick Volume Raid Setup even the member disk of MobileRAID MR4UT having RAID set existed It only needs a few keystrokes to complete the RAID set and volume set creation When starting an MobileRAID MR4UT it will display the following message on the LCD during the startup cC N a Status Display POWER BUSY FAULT OO CO A A O Areca Technology ee ee 192 169 1 100 d ae ee IP Address keypad 37 LCD CONFIGURATION MENU 38 The LCD configuration manager starts the Hot Key one step creation RAID configuration by pressing DOWN button three times If you do not use the one step creation press ENT to start the main menu of LCD configuration immediately The figure 4 7 1 1 is the flow chart of the Hot Key one step creation RAID configuration This option creates a RAID set with the following properties 1 All of the physical disk drives are contained in a RAID set 2 The RAID levels associated with hot spare capacity and stripe size are selected during the configuration process 3 A single volume set is created and consumed all or a portion of the disk capacity available in this RAID set 4 If you need to add additional volume set using main menu Volume Set functions Detailed procedure refer to this chapter section 4 6 Figure 4 7 1 1 4 7 2 Quick Volume And Raid Setup Quick Volum
70. ction Physical Drives d Check Volume From Raid Set Raid System Fu Ethernet Config 8 Select Volume To Check i L Check Volume Set H Use this option to verify the correctness of the redundant data in a volume set For example in a system with dedicated parity volume set check means computing the parity of the data disk drives and comparing the results to the contents of the dedicat ed parity disk drive To check volume set from raid set system function move the cursor bar to the Volume Set Functions menu and select the Check Volume Set item then press Enter key The Volume Set Function menu will show all raid set num ber items Move the cursor bar to an raid set number item then press Enter key to show all volume set item Select the volume set from the list you which to check press Enter key to select it After completing the selection the confirmation screen ap pears presses Yes to start check 5 5 3 5 Stop Volume Set Check Use this option to stop all the Check Volume Set function 85 VT 100 UTILITY CONFIGURATION 5 5 3 6 Display Volume Set Info To display volume set information move the cursor bar to the desired volume set number then press Enter key The Volume Set Information will show as following You can only view the information of this volume set The Volume Set Information Quick Volume Raid GG d DEE CO Ee Raid Set Functiq Raid Set Name Raid Set 00 V
71. d 4 SATA II bus are connected to the drive The SATA drive channel can support up to SATA II which runs up to 300MB s NCQ is a command protocol in Serial ATA that can only be implemented on native Serial ATA hard drives It allows multiple commands to be outstanding within a drive at the same time Drives that support NCQ have an internal queue where outstanding commands can be dynamically rescheduled or re ordered along with the necessary tracking mechanisms for outstanding and completed portions of the workload The RAID box allows user to choose the SATA Mode SATA150 SAT150 NCQ SAT300 SATA300 NCQ ans Digital RAID Controller Raid System Function Mute The Alert Beeper Alert Beeper Setting Change Password JBOD RAID Function Background Task Priorit Maximum SATA Mode Host NCQ Mode Setting HDD Read Ahead Cache Stagger Power On Spin Down Idle HDD Empty HDD Slot LED SATA 150 NCQ HDD SMART Status Polli SATA 300 Auto Activate Raid Set SATA 300 NCQ Capacity Truncation Terminal Port Config Update Firmware Restart Controller 5 5 5 7 Host NCQ Mode Setting NCQ is a performance enhancement for SATA II category disk drives and works similarly to the way command tag queuing CTQ works in SCSI command set based disk drives NCQ algorithms allow I O operations to be performed out of order to optimize and leverage disk read write head positioning and ultimately overall performance Since there are some comp
72. d set number that user want to delete and press ENT The confirmation screen appears and then press ENT to accept the delete volume set function The double confirmation screen appears then press ENT to make sure of the delete volume set function 4 7 4 3 Modify Volume Set Attribute Use this option to modify volume set configuration To modify volume set attributes from raid set system function press up and down arrow to choose the Modify Volume Set Attribute option Using UP DOWN buttons to select the raid set number that user want to modify and press ENT LCD CONFIGURATION MENU Press ENT to select the existed volume set attribute The vol ume set attributes screen shows the volume set setting configu ration attributes that was currently being configured The at tributes are Raid Level Stripe Size Cache Mode Host Channel Drive Number SATA Xfer Mode and Volume Name number All value can be modified by user Press the UP DOWN buttons to select attribute Press ENT to modify the default value Using the UP DOWN buttons to select attribute value and press the ENT to accept the selection value Choose this option to display the properties of the selected volume set HELE Figure 4 7 4 2 1 LL 4 7 3 3 1 Volume Set Migration Migrating occurs when a volume set is migrating from one RAID level to another a volume set strip size changes or when a disk is added to a raid set Migration status is displayed in the vol
73. dditional drive into the RAID set and then expand the volumes on the fly This happens transparently while the volumes are online but at the end of the process the operating system will detect free space at after the existing volume the free space will not automatically be incorporated into the existing operating system partition Windows NetWare and other advanced operating systems support volume expansion which enables you to incorporate the additional free space within the volume into the operating system partition The operating system partition is extended to incorporate the free space so it can be used by the operating system without creating a new operating system partition You can use the Diskpart exe command line utility included with Windows Server 2003 or the Windows 2000 Resource Kit to extend an existing partition into free space in the Dynamic disk Third party software vendors have created utilities that can be used to repartition disks without data loss Most of these utilities work offline Partition Magic is one such utility High availability Global Hot Spares A Global Hot Spare is an unused online available drive which is ready for replacing the failure disk The Global Hot Spares is one of the most important features that RAID box provides to deliver a high degree of fault tolerance A global Hot Spare is a spare physical drive that has been marked as a global hot spare and therefore is not a member of any
74. ded to enable scanning of the HDD temperature function It is necessary to enable HDD SMART Status Polling function before SMART information is accessible This function is disabled by default The following screen shot shows how to change the setting to enable the polling function ans Digital RAID Controller Raid System Function Mute The Alert Beeper Alert Beeper Setting Change Password JBOD RAID Function Background Task Priority Maximum SATA Mode Host NCQ Mode Setting HDD Read Ahead Cache Stagger Power On Spin Down Idle HDD Empty HDD Capacity Truncation Terminal Port Config Update Firmware Restart Controller 5 5 5 13 Auto Activate Raid Set ans Digital RAID Controller Raid System Function Mute The Alert Beeper ert Beeper Setting hange Password BOD RAID Function ackground Task Priority aximum SATA Mode ost NCQ Mode Setting DD Read Ahead Cache agger Power On pin Down Idle mpty HDD Slot cop zw DD SMART St HITTO VII Capacity Truncation Terminal Port Config pdate Firmware Restart Controller i HDD SMART Stautus Polling SET Disabled HDD SMART Status nabled Auto Activa DG Auto Activate Raid When Power on d Disabled S nabied uto Activate Ra 97 VT 100 UTILITY CONFIGURATION When some of the disk drives are removed in power off state or boot up the raid set state will change to Incomplete State But if a user w
75. dedicated parity vol ume set check means computing the parity of the data disk drives and comparing the results to the contents of the dedicated parity disk drive The checking percentage can also be viewed by click ing on RaidSet Hierarchy in the main menu 6 5 5 Stop Volume Set Check Use this option to stop the Check Volume Set function 119 WEB BROWSER BASED CONFIGURATION 6 6 Physical Drive Choose this option from the Main Menu to select a physical disk and to perform the operations listed below 6 6 1 Create Pass Through To create pass through disk move the mouse cursor to the main menu and click on the Create Pass Through link The relative setting function screen appears Disk is no controlled by the RAID box firmware thus it can not be a part of a volume set The disk is available to the operat ing system as an individual disk It is typically used on a system where the operating system is on a disk not controlled by the RAID firmware User can also select the Volume Cache Mode SATA Data Xfer Mode and Channel Drive for this volume 6 6 2 Modify Pass Through Use this option to modify the Pass Through User can modify the Volume Cache Mode SATA Data Xfer Mode and Channel Drive on an existed pass through disk To modify the pass through move the mouse cursor bar to click on Modify Pass Through link The Select The Pass Through Disk For Modification screen appears select the
76. drive which you want to modify then click on the Submit button 120 WEB BROWSER BASED CONFIGURATION The Enter Pass Through Disk Attribute screen appears modify the drive attribute values as you want After you complete the se lection click on the Confirm The Operation and Submit button to complete the selection action 6 6 3 Delete Pass Through Disk To delete pass through drive move the mouse cursor bar to the main menus and click on Delete Pass Through link Select the drive which you want to delete and select Confirm The Operation then click on the Submit button to complete the delete action 6 6 4 Identify Drive To prevent removing the wrong drive the selected disk Fault LED will light for physically locating the selected disk when the Iden tify Drive is selected To identify the selected drive from the drives pool move the mouse cursor bar to click on Identify Drive link The Select The IDE Device For Identification screen appears tick on the IDE de vice from the drives pool and Flash method After completing the selection click on the Submit button to identify selected drive geg Bonge gegen J Areca Technolog Corporation b pe 121 WEB BROWSER BASED CONFIGURATION 6 7 System Controls 122 6 7 1 System Configuration To set the RAID box function move the cursor bar to the main menu and click on the System Controls link The
77. ds and writes The operating system can instantly access to the newly created arrays without requiring a reboot and waiting the initialization complete The No Init To Rescue Volume option is for customer to rescue volume without losing data in the disk If space remains in the raid set the next volume set can be configured Repeat steps 8 to 10 to configure another volume set 65 VT 100 UTILITY CONFIGURATION 5 5 Main Menu The main menu shows all function that enables the customer to execute actions by clicking on the appropriate link ans Digital RAID Controller Quick Volume Raid Setup Raid Set Function Volume Set Function Physical Drives Verity Password Raid System Function LEE H Ethernet Configuration View System Events Clear Event Buffer Hardware Monitor System information The manufacture default password is set to 0000 this password can be by selected the Change Password in the section of Raid System Function numbers of physical disk installed System Information View the controller information VT 100 UTILITY CONFIGURATION This password option allows user to set or clear the raid box s password protection feature Once the password has been set user can only monitor and configure the raid box by providing the correct password The password is used to protect the MobileRAID MR4UT from unauthorized entry The MobileRAID MR4UT will check the password only when entering the
78. e ment of the array s physical drives and logical units can be per formed from the front panel requiring no additional hardware or software drivers for that purpose 23 CONFIGURATION METHOD A touch control keypad and a liquid crystal display LCD mounted on the back panel of the RAID box is the primary operational in terface and monitor display for the disk array controller This user interface controls all configuration and management functions for the RAID box it is properly connected The LCD provides a system of screens with areas for information status indication or menus The LCD screen displays up to two lines at a time of menu items or other information The initial screen as the following Company Name Status Display POWER BUSY FAULT WK O Areca Technology 192 169 1 100 e e e D keypad l Function Key Definitions The four function keys at the button of the front panel perform the following functions A IP Address Key Use to scroll the cursor Upward Rightward Use to scroll the cursor Downward Leftward ENT Key Submit Select ion Function Confirm a selected Item ESC Key Return to Previous Screen Exit a selection configuration There are a variety of failure conditions that cause the RAID box monitoring LED to light Following table provides a summary of the front panel LED Power LED Solid green when power on Unlit when power on Busy LED Blinking amber during host ac U
79. e And Raid Setup is the fastest way to prepare a raid set and volume set It only needs a few keystrokes to com plete it Although disk drives of different capacity may be used in the raid set it will use the smallest capacity of the disk drive as the capacity of all disk drives in the raid set The Quick Volume And Raid Setup option creates a raid set with the following prop erties LCD CONFIGURATION MENU Figure 4 7 2 1 S ge ll 1 All of the physical disk drives are contained in a raid set 2 The raid levels associated with hot spare capacity and stripe size are selected during the configuration process 3 A single volume set is created and consumed all or a portion of the disk capacity available in this raid set 4 If you need to add additional volume set using main menu Volume Set functions Detailed procedure refer to this chapter section 4 6 4 7 3 Raid Set Functions User manual configuration can complete control of the raid set setting but it will take longer time to complete than the Quick Volume And Raid Setup configuration Select the Raid Set Functions to manually configure the raid set for the first time or deletes existing raid set and reconfigures the raid set To enter a Raid Set Functions press ENT to enter the Main menu Press UP DOWN buttons to select the Raid Set Func tions option and then press ENT to enter further submenus All raid set submenus w
80. e Installation ssssssssssnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 14 2 1 MObiIIGRAID MR4UT ainireti E A EA ER 14 2 2 Installat O a aa a ok keg hee Ee ee 15 2 S Hot plug Drive Replacement ccceceeeeeeeeeeeeeeeeeeeeeeeeeneeaes 22 2 3 1 Recognizing a Drive Failure 22 2 3 2 Replacing a Failed Drive ongein eect teeter eens een ed 22 Configuration Methods e kRK NR EN RENE KK KK ENKER KEE KK EN 23 3 1 Using local front panel touch control keypad sescseecesessen 23 3 2 VT100 terminal Using the controller s serial port 25 3 2 1 RAID Box RS 232C Port Pin Assignment ceeeeee eee eee 25 3 2 2 Start up VT100 Screen e coins evs cavvenveresiorg Nane nane Eana 26 3 3 Web browser based RAID manager 29 3 4 Configuration Menu Tree 29 LCD Configuration Menu s s sssssssssss 31 4 1 Starting LCD Configuration Ulf 31 4 2 LCD Configuration Utility Main Menu Optons 32 4 3 Configuring Raid Sets and Volume Sets ccccceceeeeeeeeeeeeaees 32 4 4 Designating Drives as Hot Gpnares eee eee eens eeeeeaees 33 4 5 Using Easy RAID Configuration ccecceeeee eee ee eee eee nena 33 4 6 Using Raid Set and Volume Set FUNCTIONS cceceeeee scene eeees 35 4 7 Navigation Map of the LCD cceeeeceee eee ee eee e estes eee eeeenaes 36 4 7 1 One step creation Using LCD Hot Ken 37 4 7 2 Quick Volume And Raid Setup cceeeeeceeeeeeeeeeeeeeeeeeeaeees 38 4 7 3 Raid Set Functlons RE EEEE
81. e RAID box The tem perature items list the current states of the controller board and backplane All items are also unchangeable The warning mes sages will indicate through the LCM LED and alarm buzzer Below screen is Hardware Monitor Information 105 VT 100 UTILITY CONFIGURATION ans Digital RAID Controller Main Menu Quick Volume Raid Setup Raid Set Function Volume Set Function Physical Drive Raid System The Hardware Monitor Information Ethernet Co Enc Temp 41 Celsius View Syste Clear Event lead eee Hardware Mc Eneti eet Enc 5V 5 053 System infor Enc 3 3V 3 360 Enc 1 2V 1 216 ne ring Conition J 5 5 10 System Information ans Digital RAID i The System Information Main Processor 400MHz 88F5182 CPU I Cache Size 32KB CPU DCache Size 32KB Write Back System Memory 128MB 400MHz Firmware Version 11 44 2007 12 17 BOOT ROM Version V1 44 2007 12 13 Serial Number 20071225MR4UT Unit Serial Controller Name MR4UT Current IP Addr 192 168 001 100 106 VT 100 UTILITY CONFIGURATION Choose this option to display main processor CPU Instruction cache and data cache size firmware version serial number controller model name and the cache memory size To check the system information move the cursor bar to System Information item then press Enter key All major controller system informa tion will be displayed 7 10
82. e accessed simultaneously the reliability of RAID Level 0 is less because the entire array will fail if any one disk drive fails due to a lack of redundancy AO A1 A2 A3 BO B1 62 83 CO Ci C23 Lon kl weg eg TEF TET F EE Array Management RAID 0 Striping Block Block i Block 2 E rg g g Physical Disk Diski Disk D Di t Block 3 154 APPENDIX RAID 1 RAID 1 is also Known as disk mirroring data written to one disk drive is simultaneously written to another disk drive Read performance may be enhanced if the array controller can in parallel accesses both members of a mirrored pair During writes there will be a minor performance penalty when compared to writing to a single disk If one drive fails all data and software applications are preserved on the other drive RAID 1 offers extremely high data reliability but at the cost of doubling the required data storage capacity Co ci be Array Management SS e ae Se g g Physical Disk i i Disk 1 Disk 2 RAID 10 RAID 10 is a combination of RAID 0 and RAID 1 combing stripping with disk mirroring RAID Level 10 combines the fast performance of Level 0 with the data redundancy of Leve 10 In this configuration data is distributed across several disk drives similar to Level 0 which are then duplicated to another set of drive for data protection RAID 10 has been traditionally implemented using an even number of disks some hyb
83. e automatic dynamic allocation of IP client configurations for a specific time period called a lease period and to minimize the work necessary to administer a large IP network To manually configure the IP address of the RAID box press the UP DOWN buttons to select Ethernet Configuration function and press ENT Using UP DOWN buttons to select DHCP then press ENT Select the Disabled or Enabled option to enable or disable the DHCP function If DHCP is disabled it will be necessary to manually enter a static IP address that does not conflict with other devices on the network 4 7 7 2 Local IP Adress If you intend to set up your client computers manually no DHCP make sure that the assigned IP address is in the same range as the default router address and that it is unique to your private network However it is highly recommend to use DHCP if that option is available on your network An IP address alloca tion scheme will reduce the time it takes to set up client com puters and eliminate the possibilities of administrative errors and duplicate addresses To manually configure the IP address of the RAID box press the UP DOWN buttons to select Eth ernet Configuration function and press ENT Using UP DOWN RSR 58 LCD CONFIGURATION MENU buttons to select Local IP Adress then press ENT It will show the default address setting in the RAID box You can then reas sign the static IP address of the RAID box 4
84. e fully used 21 HARDWARE INSTALLATION It is a good idea to turn on your MobileRAID MR4UT before turning on the host computer This will insure that the host computer recognizes the volumes and drives in the MobileRAID MR4UT If you turn on the host computer first be sure of your host controller supporting hot plug function or rescan command to recognize the MobileRAID MR4UT again 2 3 Hot plug Drive Replacement The MobileRAID MR4UT supports the ability of performing a hot swap drive replacement without powering down the system A disk can be disconnected removed or replaced with a differ ent disk without taking the system off line The MobileRAID MR4UT rebuilding will be processed automatically in the background When a disk is hot swap the MobileRAID MR4UT may no longer be fault tolerant Fault tolerance will be lost until the hot swap drive is subsequently replaced and the rebuild operation is com pleted 2 3 1 Recognizing a Drive Failure A drive failure can be identified in one of the following ways 1 An error status message lists failed drives 2 Fault LED illuminates on the front of driver tray if failed drives are inside 2 3 2 Replacing a Failed Drive With our MobileRAID MR4UT drive tray you can replace a defec tive physical drive while your computer is still operating When a new drive has been installed data reconstruction will be au tomatically started to rebuild the contents of the di
85. e the cursor bar to the main menu Ethernet Configuration function item and then press the Enter key The Ethernet Configuration menu appears on the screen Move the cursor bar to HTTP Port Number item then press the Enter key to show the default address setting in the RAID controller You can then reassign the default HTTP Port Number of the control ans Digital RAID Controller Quick Volume Raid Setup Raid Set Function Volume Gel Ethernet Configuration Physical Dri Raid Syste DHCP Function Enabled Edel Local Ip Address 192 168 001 100 View Syste HTTP Port Number 80 Clear Even Telnet Port Num Edit The HTTP Port Number Hardware Ethernet Address System info oo8o 5 5 6 4 Telent Port Number To manually configure the Telent Port Number of the controller move the cursor bar to the main menu Ethernet Configuration function item and then press the Enter key The Ethernet Configuration menu appears on the screen Move the cursor bar to Telent Port Number item then press the Enter key to show the default address setting in the RAID controller You can then reassign the default Telent Port Number of the controller 103 VT 100 UTILITY CONFIGURATION ans Digital RAID Controller Quick Volume Raid Setup Raid Set Function 5 5 6 5 Ethernet Address A MAC address stands for Media Access Control address and is your computer s unique hardware number On an Ethernet LAN it s the
86. e to add one or more physical drives to a volume set without interrupting server operation eliminating the need to backup and restore after reconfiguration of the raid set When disks are added to a raid set unused capacity is added to the end of the raid set Then data on the existing volume sets residing on the newly expanded raid set is redistributed evenly across all the disks A contiguous block of unused capacity is made available on the raid set The unused capacity can be used to create additional volume sets APPENDIX A disk to be added to a Raid set must be in normal mode not failed free not spare in a raid set or passed through to host and must have at least the same capacity as the smallest disk capacity already in the Raid set Capacity expansion is only permitted to proceed if all volumes on the Raid set are in the normal status During the expansion process the volume sets being expanded can be accessed by the host system In addition the volume sets with RAID levels 1 10 3 or 5 are protected against data loss in the event of disk failure s In the case of disk failure the volume set transitions from migrating state to migrating degraded state When the expansion is completed the volume set would then transition to degraded mode If a global hot spare is present then it further transitions to the rebuilding state The expansion process is illustrated as following figure Before
87. e volume set e Migrating ans Digital RAID Controller Quick Volume Raid Setup Raid Set Function Raid Set Name Raid Set 00 Member Disks al Raid State Migrating Raid Power State Operating Total Capacity 400 0GB Free Capacity 400 0GB Min Member Disk Size 400 0GB Member Disk Channels 12 VT 100 UTILITY CONFIGURATION Migrating occurs when a disk is added to a raid Set Migration status is displayed in the raid status area of the Raid Set infor mation when a disk is added to a raid set Migrating status is also displayed in the associated volume status area of the Vol ume Set Information when a disk is added to a raid set 5 5 2 4 Offline Raid Set This function is for customer being able to unmount and remount a multi disk volume All Hdds of the selected raid set will be put into offline state and spun down and fault LED will be in fast blinking mode ans Digital RAID Controller Quick Volume Raid Setup Raid Set Functio Raid Set Function Volume Set Fund Physical Drives Create Raid Set Raid System Fu Delete Raid Set Ethernet Config Expand Raid Set View System Ev C i Offline Raid Set Clear Event ppal J EE O Hardware Mo Are you Sure System Inform H RER Lt No 5 5 2 5 Activate Raid Set The following screen is the Raid Set Information after one of its disk drive has removed in the power off state ans Digital RAID Controll
88. eSATA cable is Fully shielded cable with separation of the outer shielding for chassis ground and signal ground Hot plugging supported and Maximum length increased to 2 meters The USB 2 0 or Hi Speed USB provides an even greater enhancement in performance up to 40 times faster than USB 1 1 with a design data rate of 480 Mbps 1 1 2 SATA Il Drive Interface The MobileRAID MR4UT communicates directly with the array s 4 SATA II drives via a built in SATA interface When the host is di rectly controlling the drives the RAID box controller board trans lates all communications between the HOST eSATA USB2 0 and SATA II devices 1 2 RAID Box Controller Board The MobileRAID MR4UT incorporates onboard high performance 400MHz storage processors and on board DDR2 400 SDRAM mem ory to deliver true hardware RAID Designed and leveraged with Sans Digital existing high performance solution this controller delivers high capacity performance at the best of cost performance value Hardware RAID controllers have their own local RAID processor on board plus dedicated onboard cache for full hardware offloading of RAID processing functions The ability of hardware RAID controllers to rebuild an array in the event of a drive failure is superior to what software RAID controllers offer 1 2 1 Unparalleled Performance MobileRAID MR4UT unleashes the power of 3 0Gbps performance and NCQ support on the eSATA host port The eSATA port delivers in ex
89. echnology eee 192 169 1 100 ESC A e ENT A DA IP Address Se Method 2 RS 232 Port Connection The MobileRAID MR4UT can be configured via a VT 100 com patible terminal or a PC running a VT 100 terminal emulation program You can attach a serial Character Based terminal or server com port to the RAID box for access to the text based setup menu For additional information on using the RS 232 port to configure the RAID box see the Chapter 5 of VT 100 Util ity Configuration Method 3 LAN Port Connection The MobileRAID MR4UT has embedded the TCP IP amp Web Browser based RAID manager in the firmware User can re mote manage the RAID box without adding any user specific software platform independent via standard web browsers di rectly connected to the 10 100 Ethernet RJ45 LAN port For ad ditional information on using the LAN port to configure the RAID box see the Chapter 6 of Web Browser Based Configuration Step 4 Connect to Host Computer Once the MobileRAID MR4UT has finished the initialization of the array then you can connect it to a host computer The MobileRAID MR4UT can be connected to a host computer through the Hi Speed USB 2 0 or eSATA interface User can use both interfaces connected to the host When the volume set is ready for system accesses connect the USB2 0 or and eSATA cable to the MobileRAID MR4UT and to the appropriate port on host computer 17 HARDWARE INSTALLATION po
90. either on the system board or on a plug in host bus adapter HBA card With the host SATA controller supported port multiplier function both eSATA and USB2 0 host channel can support multiple volumes up to 4 by Sans Digital s target mode multiplier emulation The RAID box allows easy scalability from JBOD to RAID It can be configured to RAID levels 0 1 10 3 5 Single Disk or JBOD The RAID function allows one HDD failure without impact on the exist ing data and failed drive data can be reconstructed from the remain ing data and parity drives RAID configuration and monitoring can be done through the LCD front control panel serial port or LAN port The controller unit is most cost effective SATA disk drive RAID box with completely integrated high performance and data protection capabili ties which meet the performance and features of a midrange storage product at an entry level price MR4UT RAID box eSATA and USB 2 0 Host Interface e mE Im mm Le S RAID Box SATAII Drives Host I Controller board d Max 4 1 1 System Architecture 1 1 1 eSATA USB 2 0 Host Interface The MobileRAID MR4UT s host interface appears to the host sys tem as a SATA Il or UBS2 0 target device Your MobileRAID MR4UT uses the latest eSATA technology allowing interface or bus transfer rates of up to 3 0Gbps The eSATA was developed for the E 10 INTRODUCTION use of shielded cables outside the PC The
91. er Quick Volume Raid Setup Raid Set passers Raid Set Function The Raid Set Information Raid Set Name Raid Set 00 Member Disks 21 Raid State Incomplete Raid Power State Operating Total Capacity 400 0GB Free Capacity 400 0GB Min Member Disk Size 400 0GB Member Disk Channels 1 VT 100 UTILITY CONFIGURATION 74 When one of the disk drive is removed in power off state the raid set state will change to Incomplete State If user wants to continue to work when the RAID box is power on User can use the Activate Raid Set option to active the raid set After user complete the function the Raid State will change to Degraded Mode 5 5 2 6 Create Hot Spare When you choose the Create Hot Spare option in the Raid Set Function all unused physical devices connected to the current controller appear Select the target disk by clicking on the appropriate check box Press the Enter key to select a disk drive and press Yes in the Create Hot Spare to designate it as a hot spare The Create Hot Spare option gives you the ability to define a global hot spare ans Digital RAID Controller Quick Volume Raid Setup NEES Raid Set Function Create Raid Set Delete Raid Set Expand Raid Set Offline Raid Set Select Drives For HotSpare Max 3 HotSpare Supported aay one a U4 400 Raid System Ethernet Con 5 5 2 7 Delete Hot Spare Select
92. er want to identify and press ENT The selected disk Fault LED indicator will flash 4 7 6 Raid System Functions To enter a Raid System Functions press ENT to enter the main menu Press UP DOWN buttons to select the Raid System Functions option and then press ENT to enter further submenus All raid system submenus will be displayed Using UP DOWN buttons to select the submenus option and then press ENT to enter the selection function 51 LCD CONFIGURATION MENU Ethemet Configurabon S Enabled gt DOT Figure 4 7 6 1 Enen So pl Se Stats Poling P D ma HDD Temp LCD CONFIGURATION MENU 4 7 6 1 Mute The Alert Beeper The Mute The Alert Beeper function item is used to control the RAID box beeper Select No and press ENT button to turn the beeper off temporarily The beeper will still activate on the next event 4 7 6 2 Alert Beeper Setting The Alert Beeper Setting function item is used to disabled or enabled the RAID box alarm tone generator Using the UP DOWN buttons to select Alert beeper Setting and press ENT to accept the selection After completed the selection the con firmation screen will be displayed and then press ENT to accept the function Select the Disabled and press ENT key in the dialog box to turn the beeper off 4 7 6 3 Change Password To set or change the RAID box password press the UP DOWN buttons to select Change Password
93. es Of 1G If you have 123 GB drives from different vendors chances are that the capacity varies slightly For n 98 VT 100 UTILITY CONFIGURATION example one drive might be 123 5 GB and the other 123 4 GB Multiples Of 1G truncates the fractional part This makes the same capacity for both of these drives so that one could replace the other Disabled It does not truncate the capacity 5 5 5 15 Terminal Port Config Parity Value is fixed at None Handshaking value is fixed at None Speed sending values are 1200 2400 4800 9600 19200 38400 57600 and 115200 Stop Bits values are 1 bit and 2 bits ans Digital RAID Controller Raid System Function Mute The Alert Beeper ert Beeper Setting hange Password BOD RAID Function ackground Task Priority aximum SATA Mode ost NCQ Mode Setting DD Read Ahead Cache agger Power On pin Down Idle HDD mpty HDD Slot LED DD SMART Stat uto Activate Raid apacity Truncatid Terminal Port Con Stop Bits 1 bit Update Firmware Restart Controller OF D D QOFPIMNOADIIT 5 5 5 16 Update Firmware Please refer to the appendix A Upgrading Flash Firmware Programming Utility Note 1 User can only update the firmware through the VT100 Terminal or web browser based RAID Management through the controller s serial port or LAN port VT 100 UTILITY CONFIGURATION 100 5 5 5 17 Restart Controller Use
94. essed for a certain amount of time This value is used by the drive to determine how long to wait with no disk activity before turning off the spindle motor to save power e Empty HDD Slot LED The firmware has added the Empty HDD Slot LED option to setup the Fault LED light ON or OFF When each slot has a power LED for the HDD installed identify user can set this option to OFF Choose option ON the MobileRAID MR4UT will light the Fault LED if no HDD installed WEB BROWSER BASED CONFIGURATION e HDD SMART Status Polling HDD SMART Status Polling was added to enable scanning of the HDD temperature function It is necessary to enable HDD SMART Status Polling function before SMART information is ac cessible This function is disabled by default e Auto Activate Incomplete Raid When some of the disk drives are removed in power off state or boot up the raid set state will change to Incomplete State But if a user wants to automatically continue to work while the SAS RAID controller is powered on the user can set the auto Activate Raid Set option to enable The Raid State will change to Degraded Mode while it powers on e Disk Capacity Truncation Mode Sans Digital box use drive truncation so that drives from differing vendors are more likely to be able to be used as spares for each other Drive truncation slightly decreases the usable capacity of a drive that is used in redundant units The controller provides
95. et___Stagger Power On HDD SMART Status Auto Activate Raid Sq Capacity Truncation Terminal Port Config Update Firmware Restart Controller VT 100 UTILITY CONFIGURATION 5 5 5 10 Spin Down Idle HDD This function can automatically spin down the drive if it hasn t been accessed for a certain amount of time This value is used by the drive to determine how long to wait with no disk activity before turning off the spindle motor to save power ans Digital RAID Controller Raid System Function Mute The Alert Beeper Alert Beeper Setting Change Password JBOD RAID Function Background Maximum S Host NCQ Disabled HDD Read A 5 5 5 11 Empty HDD Slot LED The firmware has added the Empty HDD Slot LED option to setup the Fault LED light ON or OFF When each slot has a power LED for the HDD installed identify user can set this option to OFF Choose option ON the MR4UT RAID box will light the Fault LED if no HDD installed ans Digital RAID Controller Raid System Function Mute The Alert Beeper ert Beeper Setting hange Password BOD RAID Function ackground Task Priority aximum SATA Mode ost NCQ Mode Setting DD Read Ahead Cache agger Power On pin Down Idle HDD mpty HDD Slot LED DOOD O E IRV VII Terminal Port Config Update Firmware Restart Controller VT 100 UTILITY CONFIGURATION 5 5 5 12 HDD SMART Status Polling HDD SMART Status Polling was ad
96. figuration Using one step creation or choose Quick Volume And Raid Setup from the main menu The available RAID levels with hot spare for the current volume set drive are displayed 33 E RE CONFIGURATION MENU Recommend use drives have same capacity in a specific array If you use drives with different capacities in an array all drives in the raid set will select the lowest capacity of the drive in the raid set The numbers of physical drives in a specific array determine the RAID levels that can be implemented with the array RAID 0 requires 1 or more physical drives RAID 1 requires at least 2 physical drives RAID 1 Spare requires at least 3 physical drives RAID 3 requires at least 3 physical drives RAID 5 requires at least 3 physical drives RAID 3 Spare requires at least 4 physical drives RAID 5 Spare requires at least 4 physical drives Using UP DOWN buttons to select RAID level for the volume set and press ENT to confirm it Using UP DOWN buttons to create the current volume set capacity size and press ENT to confirm it The available stripe sizes for the current volume set are displayed Using UP DOWN buttons to select the current volume set stripe size and press ENT key to confirm it This parameter specifies the size of the stripes written to each disk in a RAID 0 1 10 or 5 volume set You can set the stripe size to 4 KB 8 KB 16 KB 32 KB 64 KB or 128 KB A larger stripe size provides be
97. g system makes a request Consistency Check A consistency check is a process that verifies the integrity of redundant data For example performing a consistency check of a mirrored drive assures that the data on both drives of the mirrored pair is exactly the same To verify RAID 3 or 5 redundancy a consistency check reads all associated data blocks computes parity reads parity and verifies that the computed parity matches the read parity Consistency checks are very important because they detect and correct parity errors or bad disk blocks in the drive A consistency check forces every block on a volume to be read and any bad blocks are marked those blocks are not used again This is critical and important because a bad disk block can prevent a disk rebuild from completing We strongly recommend that you run consistency checks on a regular basis at least once per week Note that consistency checks degrade performance so you should run them when the system load can tolerate it Data Protection RECOVERY ROM The RAID box firmware is stored on the controller flash ROM and is executed by the I O processor The firmware can also be updat ed through Ethernet port if equipped without the need to replace any hardware chips During the controller firmware upgrade flash process it is possible for a problem to occur resulting in corrup tion of the controller firmware With our Redundant Flash image feature the controller will reve
98. gh availability Solution but due to the 100 duplication it is also a costly solution Lower Writes Reads are han RAID similar to a f twice faster 6 single disk f than a single Higher disk han RAID 3 5 Write are similar to a single disk KA CH Also known Block Interleaved Parity Data and parity information is subdivided and distributed across all disk Parity must be the equal to the smallest disk capacity in the array Parity information normally stored on a dedicated parity disk Lower Transfer Reads are han RAID rates more J twice faster 6 similar to than a single Higher RAID 1 disk han than RAID RAID 3 5 0 Writes are similar to a single disk Also known Bit Interleaved Parity Data and parity information is subdivided and distributed across all disk Parity must be the equal to the smallest disk capacity in the array Parity information normally stored on a dedicated parity disk Lower Reads are Reads are han RAID J similar to similar twice 1 10 6 RAID 0 faster than a single disk Higher Writes are hana slower than Writes are single a single f similar to a drive disk single disk Also known Block Interleaved Distributed Parity Data and parity information is subdivided and distributed across all disk Parity must be the equal to the smallest disk capacity in the array Parity information normally stored on a dedicated parity disk Lower Reads are J Reads are han RAID similar to simil
99. hrough Disk 51 4 7 5 5 Identify The Selected Drive 51 4 7 6 Raid System FUNCTIONS cceceeee eset sete eeeeeeeeeeeeeeeenae ene ees 51 4 7 6 1 Mute The Alert Beeper sssssssssesssrrsrrrrrrrrresrsessrsssrrne 53 4 7 6 2 Alert Beeper Setting mirre nari eee teeta eee eeeeae es 53 4 7 6 3 Change Password ccceceee cece teeter eee eee seen ee eee eae es 53 4 7 6 4 JBOD RAID Mode Configuration cccccecceeeeeseeeeeeaeeaes 53 4 7 6 5 Raid Rebuild Prioritw 54 4 7 6 6 Maximum SATA MOde sceccceceeeeeeeeeeeeeseeneeeaeeneeeaeeaas 54 4 7 6 7 HOSt NCQ Setting sar rarrrsi iivaa ana vied evita esavvieeteasts 54 4 7 6 8 HDD Read Ahead Cache 55 4 7 6 9 Stagger Power On Control 55 4 7 6 10 Spin Down Idle HDD 56 4 7 6 11 Empty HDD Slot LED Control 56 4 7 6 12 HDD SMART Status Polling eeeeeee eect eee ee ea ees 56 4 7 6 13 Disk Capacity Truncation Mode 56 4 7 6 14 Terminal Port Configuration eceeeeee cette ener ees 57 5 4 7 6 15 Restart Controller NENNEN 57 4 7 7 Ethernet Configuration cceceeeeee eee ee eee eee eee eeeeeeeenaes 58 ARTHAS DAGP EE 58 4 7 7 2 Local IP Adress e NENNEN NNN ENNEN 58 4 7 7 3 HTTP Port Number NENNEN NNN NNN ANNE ANN 59 4 7 7 4 Telnet Port Number aa 59 4 7 7 5 Ethernet Address 59 4 7 8 Show System Events 59 4 7 9 Clear all Event Buffers cccccccssccseeesceceeeeeuceeeeeesueeernsagas 59 4 7 10 Hardware Monitor Information 60 4 7 11 System Information
100. ild value After completing the modification the confir mation screen will be displayed and then press ENT to accept the function 4 7 6 6 Maximum SATA Mode Within the subsystem the eSATA USB 2 0 acts as a target and 4 SATA II bus are connected to the drive The SATA drive channel can support up to SATA Il which runs up to 300MB s NCQ is a command protocol in Serial ATA that can only be implemented on native Serial ATA hard drives It allows multiple commands to be outstanding within a drive at the same time Drives that support NCQ have an internal queue where outstanding com mands can be dynamically rescheduled or re ordered along with the necessary tracking mechanisms for outstanding and completed portions of the workload The RAID box allows user to choose the SATA Mode SATA150 SAT150 NCQ SAT300 SATA300 NCQ 4 7 6 7 Host NCQ Setting NCQ is a performance enhancement for SATA II category disk drives and works similarly to the way command tag queuing CTQ works in SCSI command set based disk drives NCQ algorithms allow I O operations to be performed out of order to optimize and leverage disk read write head positioning and ultimately overall performance Since there are some compatible with MR4UT MR4UT provides the following option to tune the function The default setting on this option is Disable for bet RER 54 LCD CONFIGURATION MENU ter compatibility The MobileRAID MR4UT provides the following host NC
101. ill be displayed 39 LCD CONFIGURATION MENU ANe N To agate L RRS e Si HEEN e pl ENT To Epara Figure 4 7 3 1 Raid Set Zi rg OP S eoi L Ei POP Si c a toy Rag Set rb DEE 4 7 3 1 Create A New Raid Set For detailed procedure please refer to chapter section 4 6 4 7 3 2 Delete Raid Set Press UP DOWN buttons to choose the Delete Raid Set op tion Using UP DOWN buttons to select the raid set number that user want to delete and then press ENT to accept the raid set number The confirmation screen appears then press ENT to accept the delete raid set function The double confirmation screen appears then press ENT to make sure of the delete ex isted raid set function 40 LCD CONFIGURATION MENU 4 7 3 3 Expand Raid Set Instead of deleting a raid set and recreating it with additional disk drives the Expand Existed Raid Set function allows the user to add disk drives to the raid set that was created To expand existed raid set press UP DOWN buttons to choose the Expand Raid Set option Using UP DOWN buttons to select the raid set number that user want to expand and then press ENT to accept the raid set number If there is an available disk then the Select Drive IDE Channel x appears Using up and down arrow to select the target disk and then press ENT to select it Press ENT to start expanding the existed raid set The new add capacity will be define one or more volume sets Follo
102. information screen shows the Model Name Serial Number Firmware Rev Device Capacity Current SATA Supported SATA and Device State 4 7 5 2 Create Pass Through Disk Disk is no controlled by the RAID box firmware and thus cannot be a part of a raid set The disk is available to the operating sys tem as an individual disk It is typically used on a system where the operating system is on a disk not controlled by the RAID box firmware Using UP DOWN buttons to choose the Create Pass Through Disk option and press ENT Using UP DOWN buttons to select the drive IDE number that user want to create The drive attributes will be displayed The attributes for Pass Through disk show the Cache Model Host Channel Drive Number and SATA Xfer Mode All values can be changed by user Press the UP DOWN buttons to attribute and then press ENT to modify the default value Us ing the up and down arrow buttons to select attribute value and press ENT to accept the selection value 4 7 5 3 Modify Pass Through Disk To modify Pass Through Disk attributes from Pass Through drive pool press UP DOWN buttons to choose the Modify Pass Through Disk option and then press ENT The select drive function menu will show all Pass Through disk number items Using UP DOWN buttons to select the Pass Through Disk that user wants to modify and press ENT The attributes screen shows the Pass Through Disk setting value that was currently being configured
103. is admin and the password is 0000 3 4 Configuration Menu Tree The following is an expansion of the menus in configuration Util ity that can be accessed through the LCD panel RS 232 serial port and LAN port 29 CONFIGURATION METHOD 7 Main Menu Quick Volume Raid Setup 7 RaidSet Function Create Raid Set Delete Raid Set Expand Raid Set Offline Raid Set Active Raid Set Create Hot Spare Delete Hot Spare Raid Set Information Volume Set Function Create Volume Set Delete Volume Set Modify Volume Set Check Volume Stop Volume Set Check Display Volume Set Info Physical Drives View Drive Information Create Pass Through Disk Modify Pass Through Disk Delete Pass Through Disk Identify Selected Drive Raid System Function Mute The Alert Beeper Alert Beeper Setting Change Password JBOD RAID Function Maximum SATA Mode Background Task Priority Host NCQ Mode Setting HDD Read Ahead Cache Stagger Power On Spin Down Idle HOD Empty HDD Slot LED HDD SMART Status Polling Auto Activate Riad Set Capactity Truncation Termainal Port Config Update Firmware Reset Controller Ethernet Configuration DHCP Function Local IP Address View System Events HTTP Port Number Telent Port Number Ethernet Address C Clear Events Buffer Hardware Monitor Information System Information ote Ethernet Configuration Alert By Mail Config and SNMP Config can only be set in the web based configuration
104. l Choose a configuration method Create raid set using the available physical drives Define volume set using the space in the raid set Initialize the volume set and use volume set in the host OS 32 LCD CONFIGURATION MENU 4 4 Designating Drives as Hot Spares To designate drives as hot spares press ENT to enter the Main menu Press UP DOWN buttons to select the Raid Set Functions option and then press ENT All raid set functions will be displayed Press up and down arrow to select the Create Hot Spare Disk op tion and then press ENT The first unused physical device connect ed to the current RAID box appears Press UP DOWN buttons to scroll the unused physical devices and select the target disk to as sign as a Hot Spare and press ENT to designate it as a hot spare 4 5 Using Easy RAID Configuration In One step creation or Quick Volume And Raid Setup con figuration the raid set you create is associated with exactly one volume set and you can modify the RAID Level Stripe Size and Capacity Designating drives as Hot Spares will also combine with RAID level in this setup The volume set default settings will be The default setting values can be changed after configuration is completed CSR DEEN Volume Name Volume Set 00 Host Channel Drive Select SATA O SATA Xfer Mode SATA300 NCQ Follow the steps below to create raid set using One step creation Quick Volume And Raid Setup con
105. l disk installed it can modify the volume set Capacity Raid Level and Stripe Size RaidSet Functions Create a customized RAID set VolumeSet Functions Create customized volume sets and modify the existed volume sets parameter Physical Drives Create pass through disks and modify the existed pass through drives parameter It also provides the function to identify the respect disk drive System Controls Setting the RAID system configurations Information View the controller information The RaidSet Hierarchy can also view through the RaidSet Hierarchy item 6 3 Quick Function 6 3 1 Quick Create K SW Areta Technology Corperatinn The number of physical drives in the raid controller determines the RAID levels that can be implemented with the RAID set You can create a RAID set associated with exactly one volume set The user can change the raid level stripe size and capacity A hot spare op tion is also created depending upon the existing configuration The host Channel Drive setting default set is SATA amp USB Tick on the Confirm The Operation and click on the Submit but ton in the Quick Create screen the raid set and volume set will start to initialize e aaa 110 WEB BROWSER BASED CONFIGURATION Note In Quick Create your volume set is automatically configured based on the number of disks in your system Use the Raid Set functions and
106. me greatly increasing the performance of the RAID system This relieves the write bottleneck that characterizes RAID 4 and is the primary reason that RAID 5 is more often implemented in RAID arrays Logical Disk foyer oke ee ta Gol gei RAID 5 Block Interleaved Array Managemen E Ditributed Parity Af Biocks 6 Blocks C Blocks 0 Blocks Blocks aaa J d Physical i Disk 1 JBOD Just a Bunch Of Disks A group of hard disks in a RAID box are not set up as any type of RAID configuration All drives are available to the operating system as an individual disk JBOD does not provide data redundancy Single Disk Pass Through Disk Pass through disk refers to a drive that is not controlled by the RAID firmware and thus can not be a part of a RAID volume The drive is available to the operating system as an individual disk 157 APPENDIX Summary of RAID Levels SATA RAID controller supports RAID Levels 0 1 10 3 and 5 Table below provides a summary of RAID levels Features and Performance Description Min Drives Max Data Data LO Request Drives Reliability Transfer Rates Rate Also known as stripping Data distributed across multiple drives in the array There is no data protection No data Very High Very High for Protection Both Reads and Writes D Es CS d 2 O Also known as mirroring All data replicated on N Separated disks N is almost always 2 This is a hi
107. me Set am Voy Volume Creation Volume Name MR4UT VOL 00 Raid Leve Capacity 400 0GB Stripe Size 64K Edit The Volume Name R4UT VOL 01 5 5 3 1 2 Raid Level Set the RAID level for the Volume Set Highlight Raid Level and press Enter The available RAID levels for the current Volume Set are displayed Select a RAID level and press Enter key to confirm it VT 100 UTILITY CONFIGURATION ans Digital RAID Controller Quick Volume Raid Setup Raid Set Functig Volume Set g Voluny Volume Creation Physical Drives Volume Name MR4UT VOL 00 Raid System Fu d Raid Level 5 Ethernet Config Capacity 400 0GB View System E Stripe Size 64K Host Channel SATA Drive Number 4 Cache Mode Write Back SATA Xfer Mode SATA300 NCQ Hardware Monit System informa 5 5 3 1 3 Capacity The maximum volume size is default in the first setting Enter the appropriate volume size to fit your application The capac ity can also increase or decrease by the UP DOWN key Each volume set has a selected capacity which is less than or equal to the total capacity of the raid set on which it resides ans Digital RAID Controller Quick Volume Raid Setup S Raid Set Volume Creation Functig Vol Volume Set Fun RGL Volume Name MR4UT VOL 00 Physical Drives emery Raid Level 25 Raid System Fu Capacity 400 0 GB Ethernet Config i Stripe Size 64K Host Channel LS AT
108. message will be 59 LCD CONFIGURATION MENU 60 displayed and press ENT to clear all event buffers or ESC to abort the action 4 7 10 Hardware Monitor Information To view the RAID box s hardware monitor information press ENT to enter the main menu Press UP DOWN buttons to select the Hardware Information option and then press ENT All hard ware monitor information will be displayed Press UP DOWN buttons to browse all the hardware information The hardware information provides the temperature fan speed chassis fan and voltage of the RAID box All items are also un changeable The warning messages will indicate through the LCM LED and alarm buzzer 4 7 11 System Information a Conation Enclosure Power Supply 5V lt 4 7V or gt 5 3V Enclosure Power Supply 3 3V lt 3 0V or gt 3 6V CPU Core Voltage 1 2V lt 1 08V or gt 1 32V Choose this option to display Main processor CPU Instruction cache and data cache size firmware version serial number controller model name and the cache memory size To check the system information press ENT to enter the main menu Press UP DOWN button to select the Show System Information op tion and then press ENT All major controller system informa tion will be displayed Press UP DOWN buttons to browse all the system information VT 100 UTILITY CONFIGURATION 5 VT 100 Utility Configuration The RAID box configuration utility is firmware based and uses to
109. minal emulation program is used must support the ZMODEM file transfer protocol 133 APPENDIX Upgrade Firmware Through ANSI VT 100 Terminal Emulation Get the new version firmware for your RAID subsystem controller For Example download the bin file from your OEM s web site onto the c 1 From the Main Menu scroll down to Raid System Function 2 Choose the Update Firmware The Update The Raid Firm ware dialog box appears 4 Select ZMODEM modem under Protocol ZMODEM as the file transfer protocol of your terminal emulation software 134 APPENDIX 5 Click Browse Look in the location where the Firmware upgrade software is located Select the File name Rm igisi ols als ca e 7 When the Firmware completes downloading the confirmation screen appears Press Yes to start program the flash ROM 8 When the Flash programming starts a bar indicator will show Start Updating Firmware Please Wait KEE 135 APPENDIX 9 The Firmware upgrade will take approximately thirty seconds to complete 10 After the Firmware upgrade is complete a bar indicator will show Firmware Has Been Updated Successfully 1 The user doesn t need to reconfigure all of the settings after the firmware upgrade is complete because all of the settings will keep us the vaules before upgrade 2 Please
110. monitor and configure the controller by providing the correct password This feature is used to protect the RAID box from unauthorized entry The RAID box will check the password only when entering the main menu from the initial screen The system will automatically go back to the initial screen when it does not receive any command in 5 minutes To set or change the password move the cursor to Raid System Function screen press the Change Password item An Enter New Password screen appears Do not use spaces when you enter the password If spaces are used it will lock out the user To disable the password press Enter only in both the Enter New Password and Re Enter New Password column The existing password will be cleared No password checking will occur when entering the main menu from the starting screen ans Digital RAID Controller Mute The Alert Beeper Alert Beeper Setting Change Password JBOD RAID Function Background Task Priority Maximum SATA Mode Host NCQ Mode Settin Enter New Password HDD Read Ahead Cac Stagger Power On Spin Down Idle HDD Empty HDD Slot LED HDD SMART Status Polling Auto Activate Raid Set Capacity Truncation Terminal Port Config Update Firmware Restart Controller 5 5 5 4 JBOD RAID Function JBOD is an acronym for Just a Bunch Of Disk A group of hard disks in a RAID box are not set up as any type of RAID configuration All drives are available to the operating system
111. nd press Enter key The volume cre ation is displayed in the screen ans Digital RAID Controller BSAN Veure SATO Physical Drives Raid System Fu Delete Volume Set Ethernet Config Modif Hardware Monit System informa 4 A window with a summary of the current volume set s set tings The Volume Creation option allows user to select the Volume Name RAID level Capacity Strip Size Host Chan nel Drive Number Cache Mode and SATA Xfer Mode User can modify the default values in this screen the modification proce dures are at 5 5 3 1 1 to 5 5 3 1 8 section ans Digital RAID Controller Quick Volume Raid Setup Raid Set Functig Physical Drives Raid System Eu d Ethernet Config Capacity 400 0GB Stripe Size 64K Host Channel SATA Drive Number P Cache Mode Write Back SATA Xfer Mode SATA300 NCQ VT 100 UTILITY CONFIGURATION 78 5 After completing the modification of the volume set press Esc key to confirm it A Initialization Mode screen is present ed only Raid Level 3 and 5 6 Repeat steps 3 to 5 to create additional volume sets 7 The initialization percentage of volume set will be displayed at the button line 5 5 3 1 1 Volume Name The default volume name will always appear as Volume Set 00 You can rename the volume set name It does not exceed the 15 characters limite ans Digital RAID Controller Quick Volume Raid Setup Raid Set Functig Volu
112. nel SATA USB SATA amp USB Hardware Monit i Drive Numb System informa Cache Mod SATA Xfer VT 100 UTILITY CONFIGURATION 5 5 3 1 6 Drive Number For eSATA host controller with port multiplier function the eSATA port can support up to 4 volume sets Drive 0 3 4 15 for Reserved For the host controller without port multiplier function the eSATA port can only support one volume set Drive 0 1 15 for Reserved But the USB port can support up to 4 volume sets Drive 0 3 4 15 for Reserved ans Digital RAID Controller Select IDE Drv as Quick Volume Raid Setup Raid Set Functig Volume Set Func Physical Drives Cr Volume Name 5 Reserved Raid System Eu d Raid Level 6 Reserved Ethernet Config Capacity 7 Reserved View System E Stripe Size 8 Reserved Clear Event Bu Host Channel 9 Reserved e 10 Reserved Hardware Monit Drive Number 11 Reserved System informa Cache Mode 12 Reserved SATA Xfer Mo 13 Reserved 14 Reserved 15 Reserved 4 Reserved 5 5 3 1 7 Cache Mode User can set the cache mode to Write Through Cache or Write Back Cache ans Digital RAID Controller Quick Volume Raid Setup Raid Set aro Volume Creation Volume S Physical Drives Volume Name MR4UT VOL 00 Raid System Fu Raid Level 25 Ethernet Config Capacity 400 0GB Stripe Size 64K Host Channel SATA Volume Cache Mode
113. nlit or never flicker cesses MR4UT CONFIGURATION METHOD For additional information on using the LCD panel and keypad to configure the RAID controller see LCD Configuration Menu on Chapter 4 3 2 VT100 terminal Using the controller s serial port The serial port on the RAID box s back panel can be used in VT100 mode The provided interface cable converts the RS232 signal of the 6 pin RJ11 connector on the RAID box into a 9 pin D Sub female connector The firmware based terminal array management interface can access the array through this RS 232 port You can attach a VT 100 compatible terminal or a PC running a VT 100 ter minal emulation program to the serial port for accessing the text based Setup Menu 3 2 1 RAID Box RS 232C Port Pin Assignment To ensure proper communications between the RAID box and the VT 100 Terminal Emulation Please configure the VT100 terminal emulation settings to the values shown below Terminal requirment Connection Null modem cable Baud Rate 115 200 Data bits Flow Control The controller RJ11 connector pin assignments are defined as be low GND GND GND CONFIGURATION METHOD Keyboard Navigation The following definition is the VT 100 RAID configuration utility keyboard navigation BS Function Enter Key Submit selection function ESC Key Return to previous screen 3 2 2 Start up VT100 Screen By connecting a VT100 compatible terminal or a PC oper
114. olume Set Fund Volume Capacity 400 0GB Physical Drives Volume State Normal Raid System Fu Channel Drive SATA O Ethernet Config RAID Level 6 Stripe Size NA Block Size 512 Bytes Member Disks 1 Cache Attribute Write Back SATA Xfer Mode SATA300 NCQ Current Mode Not Linked 5 5 4 Physical Drives Choose this option from the Main Menu to select a physical disk and to perform the operations listed below ans Digital RAID Controller Quick Volume Raid Setup Raid Set Function Volume Set Ful Physical Drive Function Physical Drives 2 View Drive Information Raid System e i Ethernet Confi Create Pass Through Disk View System B Modify Pass Through Disk lew system 4 Delete Pass Through Disk Identify Selected Drive System information VT 100 UTILITY CONFIGURATION 5 5 4 1 View Drive Information When you choose this option the physical disks in the MobileRAID MR4UT box are listed Move the cursor to the desired drive and press Enter The following appears ans Digital RAID Controller Model Name ST3750640NS i Serial Number 5QD1RRTO Quick Volu Firmware Rev 3 AEG Raid Get Eu Disk Capacity 750 2GB Current SATA SATA300 NCQ Depth32 Supported SATA SATA300 NCQ Depth32 Device State RaidSet Member Timeout Count 0 Media Errors Su SMART Read Errors Rate 117 6 SMART Spinup Time 95 0 SMART Reallocation Count 100 36 SMART Seek Errors Rate 88 30 SMA
115. on Menu 6 8 1 RaidSet Hierarchy Use this feature to view the MobileRAID MR4UT current raid set current volume set and physical disk configuration Please refer to this chapter Configuring Raid Sets and Volume Sets gt Fee Oa te em SW levee Deehnobegs Corporation oe 6 8 2 System Information To view the RAID box information move the mouse cursor to the main menu and click on the System Information link The Raid Subsystem Information screen appears 131 WEB BROWSER BASED CONFIGURATION Use this feature to view the raid subsystem controller s informa tion The Controller Name Firmware Version BOOT ROM Version serial number Main Processor CPU ICache Size CPU DCache Size System Memory size speed appear and Current IP Address in this screen an ene toan Z ail Arve Fechnubegs Curpurstion 6 8 3 Hardware Monitor To view the RAID box hardware monitor information move the mouse cursor to the Information and click the Hardware Moni tor link The Hardware Monitor Information screen appears The Hardware Monitor Information provides the temperature fan speed chassis fan and voltage of the RAID box All items are also unchangeable The warning messages will indicate through the LCM LED and alarm buzzer enemies 2 a Areea Technology Corporation rend rarning Conation Enclosure Power Supply 3 3V lt 3 0V or gt 3 6V CPU Core Voltage 1 2V lt 1 08V or gt 1 32V
116. onfiguration press UP DOWN buttons to select COMA Configuration and then press ENT to accept the selection The baud rate setting or number of stop bit screen appears and uses UP DOWN buttons to select the setting function The respect selection screen appears and uses UP DOWN buttons to set the value After completing the modification the confirmation screen will be displayed and then press ENT to accept the function 4 7 6 15 Restart Controller To restart the RAID box press UP DOWN buttons to select Restart Controller and then press ENT to accept the selection The confirmation screen will be displayed and then press ENT to ote It only can work properly at Host and Drive without any activity LCD CONFIGURATION MENU 4 7 7 Ethernet Configuration To configuration Ethernet function press ENT to enter the main menu Press UP DOWN buttons to select the option 4 7 7 1 DHCP DHCP Dynamic Host Configuration Protocol allows network administrators centrally manage and automate the assignment of IP Internet Protocol addresses on a computer network When using the TCP IP protocol Internet protocol it is necessary for a computer to have a unique IP address in order to communicate to other computer systems Without DHCP the IP address must be entered manually at each computer system DHCP lets a network administrator supervise and distribute IP addresses from a central point The purpose of DHCP is to provide th
117. ons on a computer network When using the Internet s set of protocols TCP IP in order for a computer system to communicate to another com puter system it needs a unique IP address Without DHCP the IP address must be entered manually at each computer system DHCP lets a network administrator supervise and distribute IP addresses from a central point The purpose of DHCP is to provide the automatic dynamic allocation of IP client configurations for a specific time period called a lease period and to eliminate the work necessary to administer a large IP network To configure the raid controller Ethernet port move the cursor bar to the main menu and click on the System Controls link The System Controls menu will show all items Move the cursor bar to the Ethernet Config item then press Enter key to select the desired function g ff on oul irea Techkneldags d orperation WEB BROWSER BASED CONFIGURATION 6 7 3 Alert By Mail Config To configure the raid box mail function move the cursor bar to the main menu and click on the System Controls link The System Controls menu will show all items Move the cursor bar to the Alert By Mail Config item then press Enter key to select the desired function This function can only set by the web based configuration The firmware contains SMTP manager monitors all system events and user can select either single or multiple user notifications to be sent vi
118. option and then press ENT to accept the selection The New Password screen ap pears and enter new password that user want to change Using UP DOWN buttons to set the password value After completed the modification the confirmation screen will be displayed and then press ENT to accept the function Do not use spaces when you enter the password If spaces are used it will lock out the user To disable the password press ENT only in the New Pass word column The existing password will be cleared No pass word checking will occur when entering the main menu from the starting screen 4 7 6 4 JBOD RAID Mode Configuration JBOD is an acronym for Just a Bunch Of Disk It represents a volume set that is created by the concatenation of partitions on the disks User needs to delete the RAID set when you want to 53 LCD CONFIGURATION MENU change the option from the RAID to the JBOD function 4 7 6 5 Raid Rebuild Priority The Raid Rebuild Priority is a relative indication of how much time the controller devotes to a rebuild operation The RAID box allows user to choose the rebuild priority UltraLow Low High to balance volume set access and rebuild tasks appro priately To set or change the RAID box s RAID Rebuild Priority press the UP DOWN buttons to select RAID Rebuild Priority and press ENT to accept the selection The rebuild priority se lection screen appears and uses the UP DOWN buttons to set the rebu
119. or bar to the volume set Volume capacity item and entry the capacity size After you confirm it the volume set start to expand As shown in the above can be modified at this screen Choose this option to display the properties of the selected Volume set ans Digital RAID Controller Raid Set Functig Ge E Physical Drives d Raid System Fu Volume Name MR4UT VOL 00 Ethernet Config i Raid Level 25 View System E d Capacity 400 0GB Stripe Size 64K Hardware Monit ishe Host Channel SATA System informa Drive Number 21 Cache Mode Write Back 5 5 3 3 2 Volume Set Migration ans Digital RAID Controller The Volume Set Information Quick Volume Raid 9 Volume Set Name MR4UT VOL 00 Raid Set Functiq Raid Set Name Raid Set 00 Volume Set Func Volume Capacity 400 0GB Volume State Migrating Channel Drive SATA O RAID Level 15 Stripe Size NA Block Size 512 Bytes Member Disks 1 Cache Attribute Write Back SATA Xfer Mode SATA300 NCQ Current Mode Not Linked Physical Drives d Raid System Eu Ethernet Config VT 100 UTILITY CONFIGURATION Migrating occurs when a volume set is migrating from one RAID level to another a volume set strip size changes or when a disk is added to a raid set Migration status is displayed in the volume status area of the Volume Set Information 5 5 3 4 Check Volume Set ans Digital RAID Controller Quick Volume Raid Setup SS eee Volume Set Fun
120. rade Firmware 131 6 7 10 Restart Controller ssssssessssssrrsnrsrnsrnrensenserrorreenennnes 131 6 8 Information Men 131 6 8 1 RaidSet Hierarchy NENNEN 131 6 8 2 System Information 131 6 8 3 Hardware Monitor 132 Appendix A sacs snnciiteadecncseaasinscadeessinisansenddsneddeadentecdesse saan 133 Upgrading Flash Firmware Programming Utility ccnn 133 Establishing the Connection for the RS 232 ccccceeeeeeeeneeeeeenees 133 Upgrade Firmware Through ANSI VT 100 Terminal Emulation 134 Upgrade Firmware Through Web Browser Manager LAN Port 136 Appendix Becivesiiaec catcaancecsaadedscsaces cedceestateancusevecudseacsccssen 138 SNMP Operation amp Definition ccccceeeceeeeeeeeeeeeeeeeee eae eaaennes 138 Appendix C EE 140 Technical SupPOrt ege gedet aes 140 Appendix Diferir uinen anaiai EEN eata 141 Event Notification Configurations ssssesssrsrssrrrreserrrresrerrns 141 Ax Device Eventis Suel Bee ken ex a TAANE LARA a ASN ed 141 B Volume Event NENNEN 142 Co RAID Set EE 143 D Hardware Monitor Event 143 Appendix E sais svisans gue desse gend dese ENEE arianna asia 145 RAID CONnGE Pt tedster evade eelere de Ee Ee EES iar REEL 145 RAT DoS Cbs sini EE as AU ee Oe Ee or 145 Volume SOU ie scse che eeh Gain sani eb de de birds Eege 145 Easy Of USE Features seess geed Se NEEN ENNEN RENE dE 146 Instant Availability Background Initialization cceceee eee 146 Array ROAMING ca ee dE HENSEN Cee
121. rids can use an odd number of disks as well Illustration is an example of a hybrid RAID 10 array comprised of five disks A B C D and E In this configuration each strip is mirrored on an adjacent disk with wrap around Sans Digital RAID 10 offers a little more flexibility in choosing the number of disks that can be used to constitute an array The number can be even or odd 155 APPENDIX RAID 3 RAID 3 provides disk striping and complete data redundancy though a dedicated parity drive RAID 3 breaks up data into smaller blocks calculates parity by performing an exclusive or on the blocks and then writes the blocks to all but one drive in the array The parity data created during the exclusive or is then written to the last drive in the array If a single drive fails data is still available by computing the exclusive or of the contents corresponding strips of the surviving member disk RAID 3 is best for applications that require very fast data transfer rates or long data blocks Logical Disk 156 APPENDIX RAID 5 RAID 5 is sometimes called striping with parity at byte level In RAID 5 the parity information is written to all of the drives in the controllers rather than being concentrated on a dedicated parity disk If one drive in the system fails the parity information can be used to reconstruct the data from that drive All drives in the array system can be used for seek operations at the same ti
122. rmal however the system performance and fault tolerance will be affected Adjustable Rebuild Priority Rebuilding a degraded volume incurs a load on the RAID subsystem The RAID box allow the user to select the rebuild priority to balance volume access and rebuild tasks appropriately The Background Task Priority is a relative indication of how much time the controller devotes to a background operation such as rebuilding or migrating The RAID box allows user to choose the task priority Ultra Low 5 Low 20 Medium 50 High 80 to balance volume set access and background tasks appropriately For high array performance specify an Ultra Low value Like volume initialization after a volume rebuilds it does not require a system reboot 151 APPENDIX High Reliability 152 Hard Drive Failure Prediction In an effort to help users avoid data loss disk manufacturers are now incorporating logic into their drives that acts as an early warning system for pending drive problems This system is called SMART The disk integrated controller works with multiple sensors to monitor various aspects of the drive s performance determines from this information if the drive is behaving normally or not and makes available status information to RAID controller firmware that probes the drive and look at it SMART can often predict a problem before failure occurs Sans Digital controllers will recognize a SMART error code and notify
123. rrennennnes 114 6 5 VolumeSet FUNCTIONS sssssessesssrrsrnsrnressenserrerrernennresresnns 115 6 5 1 Create Volume Set NENNEN 115 6 5 2 Delete Volume Get NENNEN 118 6 5 3 Modify Volume Get 118 6 5 3 1 Volume EXP NSION ccececeeee eect eee eeeeeeeeeeeeae eae eenenas 119 6 5 3 2 Volume Set Migration cccceeeeeeee teeta eee eee eeeeaeaes 119 6 5 4 Check Volume Get 119 6 5 5 Stop Volume Set Check 119 6 6 Physical DVE ccvseecveceeseveeveds AEN e A n ER dE ERR eee Feds 120 6 6 1 Create Pass Through cceeeee cece ee eee aia 120 6 6 2 Modify Pass Through teense ee ee teat estes eeeeeeneees 120 6 6 3 Delete Pass Through Disk 121 6 6 4 Identify Drive sicciccivccevreveeenceves cos REENEN EES d d V 121 6 7 System CONtrOls ENNEN 122 6 7 1 System Configuration cece eee eee eee ee eee eeeeeeees 122 6 7 2 EtherNet Config ev ere NEE ER ERAN 126 6 7 3 Alert By Mail Config cceceee cece ee ee eee e aa da laa 127 6 7 4 SNMP Configuration ccceceee eee ee teeta e eee teeta eee eeeees 128 e SNMP Trap Configurations cceeceee cece eee eee ee teeta ee eeeee 128 e SNMP System ConfigurationS cece teens teeta eee eeeee 128 e SNMP Trap Notification Configurations sees 128 6 7 5 View Events Mute Beeper ssssssrrrrrssssssrnrnnrrrrrrresere 129 6 7 6 Generate Test Event 130 6 7 7 Clear Events Buffer 130 6 7 8 Modify PASSWOF 0 cee cecece cece eee een ene neers 130 6 7 9 Upg
124. rt back to the last known version of firmware and continue operating This reduces the risk of system failure due to firmware crash 153 APPENDIX Understanding RAID RAID is an acronym for Redundant Array of Independent Disks It is an array of multiple independent hard disk drives that provides high performance and fault tolerance The RAID box implements several levels of the Berkeley RAID technology An appropriate RAID level is selected when the volume sets are defined or created This decision should be based on the desired disk capacity data availability fault tolerance or redundancy and disk performance The following section discusses the RAID levels supported by the RAID box The RAID box makes the RAID implementation and the disks physical configuration transparent to the host operating stem This means that the host operating system drivers and software utilities are not affected regardless of the RAID level selected Correct installation of the disk array and the controller requires a proper understanding of RAID technology and the concepts RAID O RAID 0 also referred to as striping writes stripes of data across multiple disk drives instead of just one disk drive RAID 0 does not provide any data redundancy but does offer the best high speed data throughput RAID O breaks up data into smaller blocks and then writes a block to each drive in the array Disk striping enhances performance because multiple drives ar
125. s However if you are sure that your computer does random read requests more often choose a small stripe size When you are finished defining the volume set press Enter key to confirm the Quick Volume And Raid Set Setup function Press Enter key to define Foreground Initialization Background Initialization or No Init To Rescue Volume When Foreground Initialization the initialization proceeds must be completed before the volume set ready for system accesses When background Initialization the initialization proceeds as a background task the volume set is fully accessible for system reads and writes The operating system can instantly access to the newly created arrays without requiring a reboot and waiting the initialization complete The No Init To Rescue Volume option is for customer to rescue volume without losing data in the disk Initialize the volume set you have just configured If you need to add additional volume set using main menu Create Volume Set function VT 100 UTILITY CONFIGURATION 5 4 Using Raid Set Volume Set Function Method In Raid Set Function you can use the Create Raid Set function to generate the new raid set In Volume Set Function you can use the Create Volume Set function to generate its associated volume set and parameters If the current controller has unused physical devices connected you can choose the Create Hot Spare option in
126. sired press ENT to confirm the Create Raid Set function An edit the raid set name screen appears Enter 1 to 15 alphanumeric characters to define a unique identifier for a raid set The default raid set name will always appear as Raid Set Press ENT to finish the name editing 35 LCD CONFIGURATION MENU Press ENT when you are finished creating the current raid set To contin ue defining another raid set repeat step 3 To begin volume set configu ration go to step 8 Choose Volume Set Functions from the Main menu Select the Create Volume Set and press ENT Choose one raid set from the screen Press ENT to confirm it The volume set attributes screen appears The volume set attributes screen shows the volume set default configura tion value that is currently being configured The volume set attributes are Volume Name Raid Level Stripe Size Cache Mode HOST Channel Drive Number and SATA Xfer Mode All value can be changing by the user Press the UP DOWN buttons to select the attributes Press the ENT to modify each attribute of the de fault value Using UP DOWN buttons to select attribute value and press the ENT to accept the default value After user completed modifying the attribute press ESC to enter the se lect capacity for the volume set Using the UP DOWN buttons to set the volume set capacity and press ENT to confirm it When you finished defining the volume set press EN
127. sk drive The capacity of the replacement drives must be at least as large as the capacity of the other drives in the RAID set 22 CONFIGURATION METHOD 3 Configuration Methods After the hardware installation the SATA disk drives connected to the RAID box must be configured and the volume set units initialized before they are ready to use This can be accomplished by one of the following methods e Front panel touch control keypad e VT100 terminal connected through the controller s serial port e Firmware embedded amp web browser based RAID manager SNMP a gent SMTP via the controller s 10 100 LAN port Those user interfaces can access the built in configuration and admin istration utility that resides in the controller s firmware They provide complete control and management of the controller and disk arrays eliminating the need for additional hardware or software ote The RAID box allows only one method to access menus at a time 3 1 Using local front panel touch control keypad The front panel keypad and liquid crystal display LCD is the pri mary user interface for the RAID box All configuration and man agement of the controller and its properly connected disk arrays can be performed from this interface The front panel keypad and LCD are connected to the RAID box to access the built in configuration and administration utility that resides in the controller s firmware Complete control and manag
128. ssing member MigrationLBA migration raidset disk back controller will continue member disks the incompleted rebuilding on Note It depends on models not every model will encounter all events 144 APPENDIX Appendix E RAID Concept RAID Set A Raid Set is a group of disk containing one or more volume sets It has the following features in the RAID box A volume Set must be created either on an existing raid set or on a group of available individual disks disks that are not yet a part of an raid set If there are pre existing raid sets with available capacity and enough disks for specified RAID level desired then the volume set will be created in the existing raid set of the user s choice If physical disk of different capacity are grouped together in a raid set then the capacity of the smallest disk will become the effective capacity of all the disks in the raid set Volume Set A Volume Set is seen by the host system as a single logical device It is organized in a RAID level with one or more physical disks RAID level refers to the level of data performance and protection of a Volume Set A Volume Set capacity can consume all or a portion of disk capacity available in a RAID Set Multiple Volume Sets can exist on a group of disks in a Raid Set In the illustration below Volume 1 can be assigned a RAID 5 level of operation while Volume O might be assigned a RAID 10 level of operation RAID Set 1 3 Indi
129. tact us please have the information such as Product model and serial number BIOS and driver version and a description of the problem APPENDIX Appendix D Event Notification Configurations The controller classifies disk array events into four levels depending on their severity These include level 1 Urgent level 2 Serious level 3 Warning and level 4 Information The level 4 covers notificational events such as initialization of the controller and initiation of the rebuilding process Level 2 covers notification events which once have happen Level 3 includes events which require the issuance of warning messages Level 1 is the highest level and covers events the need immediate attention and action from the administrator The following lists sample events for each level A Device Event tevel_ Meaning Action Sd Reading Error Warning HDD reading error Keep Watching HDD status may be it caused by noise or HDD unstable Writing Error Warning HDD writing error Keep Watching HDD status may be it caused by noise or HDD unstable ATA Ecc Error Warning HDD ECC error Keep Watching HDD status may be it caused by noise or HDD unstable Change ATA Warning HDD change ATA Check HDD connection Mode mode Time Out Error Warning HDD time out Keep Watching HDD status maybe it caused by noise or HDD unstable Device Failed HDD failure Replace HDD PCI Parity Error Serious PCI parity error If only happen on
130. tart Controller cccccccecseeeseeeeeeeeeeeeesaeeegaeeas 100 5 5 6 Ethernet Configuration 100 5 5 6 1 DHCP FUN COM ae dees AER SEAN ideas seeds dE 101 5 5 6 2 Local IP Addrese cceccececeeeeeeeeseeeeeeeeeaeeesaeesgaeeas 102 5 5 6 3 HTTP Port Number 103 5 5 6 4 Telent Port Number 103 5 5 6 5 Ethernet Address 104 5 5 7 View System Events cccceecceeeeeeeeeeeeeeeeeeeeeenneeeaeeeeaes 105 5 5 8 Clear Events Butter 105 5 5 9 Hardware Monitor Information cccccceeeeeeeeeeeeeeeeaes 105 5 5 10 System Information 106 6 Web Browser based Configuration ssccsscesseeseeeens 108 6 1 Firmware embedded TCP IP amp web browser based RAID man ager using the controller s 10 100 LAN Dorf 108 6 2 Web Browser Start up Screen sssssssssssssssssrrrrrrrrrrrrssrssns 109 6 2 4 Maini MENU st ivnceceetevs en deene NEEN dE AE d Hee 110 6 3 QUICK FUNCCION viii isis des ete cided NENNEN NNN NEE ENNEN NEEN 110 6 3 1 Quick Create irasok ee televise EES ENEE ee 110 6 4 RaidSet FUNCTIONS ccceceeee eee eee eset eee teen eeeeeeeeeeeee eae enaeenes 111 6 4 1 Create Raid Set NENNEN 111 6 4 2 Delete Raid Get ENNEN 112 6 4 3 Expand Raid Get 112 6 4 4 Offline Raid Get 113 6 4 5 Activate Raid Get ENNEN 113 6 4 6 Create Hot Spares atitiisetsd deM ZEN NNN dee ge 113 6 4 7 Delete Hot Gpare scene eee ee eee eee ne een e ee ennies 114 6 4 8 Rescue RaidSet ssssssssssssenserrrrrsrnannnensenserro
131. ternal RAID subsystem firmware embedded Simple Net work Management Protocol SNMP agent for the connect array An SNMP based management application also known as an SNMP manager can monitor the disk array An example of An SNMP management application is Hewlett Packard s Open View The firmware embedded SNMP agent ca be used to augment the RAID controller if you are already running a SNMP management applica tion at your site SNMP Definition SNMP an IP based protocol has a set of commands for getting the status of target devices The SNMP management platform is called the SNMP manager and the managed devices have the SNMP agent loaded Management data is organized in a hierarchical data structure called the management Information Base MIB These MIBs are defined and sanctioned by various industry associa tions The objective is for all vendors to create products in compli ance with these MIBs so that inter vendor interoperability can be achieved If a vendor wishes to include additional device informa tion that is not specified in a standard MIB then that is usually done through MIB extensions Event Configuration Performance 4 MIB SNMP Agent Network resources It 138 APPENDIX SNMP Installation The installation of the SNMP manager is accomplished in several phases e Installing the Manager software on the client e Placing a copy of the management information base MIB in a directory which is
132. the Restart Controller function to restart the RAID box move the cursor bar to the main menu Raid System Function item and then press the Enter key The Raid system Function menu appears on the screen Press Enter key to select Restart Controller item The restart controller confirmation screen ap pears Select Yes key to restart entire MobileRAID MR4UT ans Digital RAID Controller Raid System Function Mute The Alert Beeper ert Beeper Setting hange Password BOD RAID Function ackground Task Priority aximum SATA Mode ost NCQ Mode Setting DD Read Ahead Cache agger Power On pin Down Idle HDD mpty HDD Slot LH Restart Controller DD SMART Stat uto Activate Raid apacity Truncatio o Terminal Port Config Update Firmware Restart Controller cgp zw OFPIMOAODIIT It can only work properly at Host and Drive without any activity 5 5 6 Ethernet Configuration Use this feature to set the controller Ethernet port configuration Customer doesn t need to create a reserved space on the arrays before the Ethernet port and HTTP service working VT 100 UTILITY CONFIGURATION ans Digital RAID Controller Quick Volume Raid Setup Raid Set Function Volume Set Function Physical Drives Raid System Function Ethernet Configuration View System Events Clear Event Buffer Hardware Monitor System information 5 5 6 1 DHCP Function DHCP Dynamic Host Configur
133. the administer of an impending hard drive failure Auto Reassign Sector Under normal operation even initially defect free drive media can develop defects This is a common phenomenon The bit density and rotational speed of disks is increasing every year and so is the potential of problems Usually a drive can internally remap bad sectors without external help using cyclic redundancy check CRC checksums stored at the end of each sector SATA drives perform automatic defect re assignment for both read and write errors Writes are always completed if a location to be written is found to be defective the drive will automatically relocate that write command to a new location and map out the defective location If there is a recoverable read error the correct data will be transferred to the host and that location will be tested by the drive to be certain the location is not defective If it is found to have a defect data will be automatically relocated and the defective location is mapped out to prevent future write attempts In the event of an unrecoverable read error the error will be reported to the host and the location flagged as potentially defective A subsequent write to that location will initiate a sector test and relocation should that location have a defect Auto APPENDIX Reassign Sector does not affect disk subsystem performance because it runs as a background task Auto Reassign Sector discontinues when the operatin
134. the main menu from LCD panel Using the UP DOWN buttons to select the menu item then press ENT to con firm it Press ESC to return to the previous screen 31 LCD CONFIGURATION MENU 4 2 LCD Configuration Utility Main Menu Options Select an option related information or submenu items to display beneath it The submenus for each item are explained on the sec tion 4 7 2 The configuration utility main menu options are Quick Volume And Raid Set Create a default configurations which are based Setup on the number of physical disk installed Description Raid Set Functions Create a customized raid set Volume Set Functions Create a customized volume set Physical Drive Functions View individual disk information Raid System Functions Setting the raid system configurations Ethernet Configuration Ethernet LAN setting Show System Events Record all system events in the buffer Clear All Event Buffers Clear all event buffer information Hardware Monitor Information Show all system environment status Show System information View the controller information 4 3 Configuring Raid Sets and Volume Sets You can use Quick Volume And Raid Set Setup or Raid Set Functions and Volume Set Functions to configure raid sets and volume sets from LCD panel Each configuration method requires a different level of user input The general flow of operations for raid set and volume set configuration is Designate hot spares pass through optiona
135. the target Hot Spare disk to delete by clicking on the ap propriate check box Press the Enter keys to select a disk drive and press Yes in the Delete Hot Spare to delete the hot spare VT 100 UTILITY CONFIGURATION ans Digital RAID Controller Quick Volume Raid Setup BGS Raid Set Function Volume Set Physical Driv Create Raid Set Raid System Delete Raid Set Expand Raid Set Offline Raid Set elect Drives HotSpare Drive To Be Deleted awa Eee Ch04 400 1GBS CL 5 5 2 8 Raid Set Information To display Raid Set Information move the cursor bar to the desired raid set number then press Enter key The Raid Set Information will show as above You can only view the information of this raid set ans Digital RAID Controller Quick Volume Raid Setup Raid Set Function d Raid Set Function Raid Set Name Raid Set 00 Member Disks SCH Raid State Normal Raid Power State Operating Volum Total Capacity 400 0GB Free Capacity 400 0GB Min Member Disk Size 400 0GB Member Disk Channels _12 75 VT 100 UTILITY CONFIGURATION 5 5 3 Volume Set Function 76 ans Digital RAID Controller e Voume Set Function Physical Drives Delete Volume Se Raid System Fu Ethernet Config Modify Volume Set Check Volume Set Stop Volume Check Hardware Monit Display Volume Info System informa A volume vet
136. three truncation modes in the system configuration Multiples Of 10G Multiples Of 1G and No Truncation Multiples Of 10G If you have 120 GB drives from different vendors chances are that the capacity varies slightly For example one drive might be 123 5 GB and the other 120 GB Multiples Of 10G truncates the number under tens This makes the same capacity for both of these drives so that one could replace the other Multiples Of 1G If you have 123 GB drives from different vendors chances are that the capacity varies slightly For example one drive might be 123 5 GB and the other 123 4 GB Multiples Of 1G truncates the fractional part This makes the same capacity for both of these drives so that one could replace the other Disabled It does not truncate the capacity 125 WEB BROWSER BASED CONFIGURATION 126 6 7 2 EtherNet Config Use this feature to set the controller Ethernet port configuration Customer doesn t need to create a reserved space on the arrays before the Ethernet port and HTTP service working The firmware embedded Web Browser based RAID manager can access it from any standard internet browser or from any host computer either directly connected or via a LAN or WAN with no software or patch es required DHCP Dynamic Host Configuration Protocol is a protocol that lets network administrators manage centrally and automate the assignment of IP Internet Protocol configurati
137. tions listed below To enter a physical drive functions press ENT to enter the main menu Press UP DOWN buttons to select the Physical Drive Functions option and then press ENT to enter further submenus All physical drive submenus will be displayed LCD CONFIGURATION MENU Figure 4 7 5 1 Figure 4 7 5 2 al Drive Serial Number Firmware Rev Device Capacity gt Current SATA Supported SATA Device State lt Write Back Write The T Wraps Around hg Host ye SATA Drive Number La p Chg Drive lt 0 1 15 Reserved gt SATA ier Mode as 8 Around Le g SATA Mode lt A300 NCQ Wraps Around Esc ToC ToAbort ate lt Write Back Write Throught gt Wraps Around che Mode ep Host Channel gt SATA Wraps Around Drive Number J Drive lt 0 1 15 Roserved gt Wi wra hannel x gt lj h Disk l Around SATA Xfer Mode g SATA Mode SATA3 N m Delete Pa Select Driv gt ENT Through Disk gt ioe e s dentify The Select Driv slected Device P Ge ontify Dev ck Device LED 49 LCD CONFIGURATION MENU 4 7 5 1 Display Drive Information Using UP DOWN buttons to choose the Display Drive Informa tion option and press ENT Using UP DOWN buttons to select the drive IDE number that user want to display The drive infor mation will be displayed The drive
138. tter read performance especially if your computer does mostly sequential reads However if you are sure that your computer does random read requests more often choose a small stripe size When you finished defining the volume set press ENT to confirm the One Step Creation or Quick Volume And Raid Set Setup function Press ENT to define FGrnd Init Foreground initialization or press ESC to define BGrnd Init Background initialization When FGrnd Init the initialization proceeds must be completed before the volume set ready for system accesses When BGrnd Init the initialization proceeds as a background task the volume set is fully accessible for system reads and writes The operating system can instantly access to the newly created arrays without requiring a reboot and waiting the initialization complete Initialize the volume set you have just configured If you need to add additional volume set using main menu Create Vol ume Set functions 34 LCD CONFIGURATION MENU 4 6 Using Raid Set and Volume Set Func tions In Raid Set Function you can use the create raid set function to generate the new raid set In Volume Set Function you can use the create volume set function to generate its associated volume set and parameters If the current RAID box has unused physical devices connected you can choose the Create Hot Spare option in the Raid Set Function to define
139. ty available in this raid set Define the capacity of volume set in the Available Capacity popup The default value for the volume set is displayed in the selected capacity To enter a value less than the available capacity type the value and press the Enter key to accept this value If it only use part of the raid set capacity you can use the Create Volume Set option to de fine another volume sets ans Digital RAID Controller Quick Volume Raid Setup Raid Set Functjan Volume Set Eu Total 4 Drive d Available Capacity 800 0GB Raid 0 Raid 1 0 Selected Capacity 800 0GB View System E Clear Event Bul Raid 3 Spare Raid 5 Spare Stripe size This parameter sets the size of the stripe written to each disk in a RAID O 1 10 or 5 logical drive You can set the stripe size to 4 KB 8 KB 16 KB 32 KB 64 KB or 128 KB A larger stripe size produces better read performance especially if your computer does mostly sequential reads However if you are sure that your computer does random reads more often se lect a small stripe size OOOO 68 VT 100 UTILITY CONFIGURATION ans Digital RAID Controller Quick Volume Raid System Ethernet Con View System Raid 0 Raid 1 0 Raid 1 Spare Raid 3 Raid 5 Raid 3 Spare Raid 5 Spare Press the Yes key in the Create Vol Raid Set dialog box the Initialization Mode dialog box will appear Select the mode for initiali
140. uick Volume Raid Setup configuration will au tomatically add the spare disk drive with the raid level for user to select For the Raid Set Function configuration user can use the Create Hot Spare option to define the hot spare disk drive A Hot Spare disk drive can be created when you choose the Create Hot Spare option in the Raid Set Function all unused physical devices connected to the current controller appear Select the target disk by clicking on the appropriate check box Press the Enter key to select a disk drive and press Yes in the Create Hot Spare to designate it as a hot spare 5 3 Using Quick Volume Raid Setup Con figuration In Quick Volume Raid Setup configuration it collects all drives in the tray and include them in a raid set The raid set you create is associated with exactly one volume set and you can modify the default RAID level stripe size and capacity of the volume set Des ignating Drives as Hot Spares will also show in the raid level selec tion option The volume set default settings will be Parameter SSS ting SS VT 100 UTILITY CONFIGURATION The default setting values can be changed after configuration is com plete Follow the steps below to create arrays using Quick Volume Raid Setup Configuration Choose Quick Volume Raid Setup from the main menu The available RAID levels with hot spare for the current volume set drive are displayed Re
141. umber you which to activate in the select column Click on the Submit button in the screen to activate the raid set that has removed one of disk drive in the power off state The RAID box will continue to work in degraded mode i Reger SW Areca Teehmelegy Corporation 6 4 6 Create Hot Spare When you choose the Create Hot Spare option in the RaidSet Functions all unused physical devices connected to the current controller appear Select the target disk by clicking on the appro priate check box Tick on the Confirm The Operation and click on the Submit button in the screen to create the hot spares The Create Hot Spare option gives you the ability to define a global hot spare 113 WEB BROWSER BASED CONFIGURATION 6 4 7 Delete Hot Spare Select the target Hot Spare disk to delete by clicking on the ap propriate check box Tick on the Confirm The Operation and click on the Submit button in the screen to delete the hot spares g et wan tete om ail Areca Technolog Corporation 6 4 8 Rescue RaidSet When the system is power off in the RAID set update period it may be disappeared in this abnormal condition The RESCUE function can recover the missing Raid set information The RAID controller uses the time as the Raid set signature The Raid set may have different time after the Raid set is recovered The SIGANT function can regenerate the signature for the Raid
142. ume state area of the Display Volume Set Information 47 LCD CONFIGURATION MENU 48 4 7 4 4 Check Volume Set Consistency Use this option to check volume set consistency To check vol ume set consistency from volume set system function press UP DOWN buttons to choose the Check Volume Set Consis tency option Using UP DOWN button to select the raid set number that user want to check and press ENT The confirma tion screen appears press ENT to start the check volume set consistency 4 7 4 5 Stop Volume Set Consistency Check Use this option to stop volume set consistency check To stop volume set consistency check from volume set system function press UP DOWN buttons to choose the Stop Volume Set Consistency Check option and then press ENT to stop the check volume set consistency 4 7 4 6 Display Volume Set Information To display volume set information from volume set function press UP DOWN buttons to choose the Display Volume Set Information option Using UP DOWN buttons to select the raid set number that user wants to show and press ENT The volume set information will show Volume Set Name Raid Set Name Volume Capacity Volume State HOST Drv Setting Raid Level Stripe Size Member Disks Cache Attribute SATA Xfer Mode and Current SATA All value cannot be modifying by this option 4 7 5 Physical Drive Functions Choose this option from the main menu to select a physical disk and to perform the opera
143. update all binary code BOOT FIRM and MBRO be fore you reboot the MR4UT Otherwise a mixed firmware package may hang the MobileRAID MR4UT Upgrade Firmware Through Web Browser Manager LAN Port Get the new version firmware for your RAID box For example download the bin file from your OEM s web site onto the c 136 APPENDIX 1 To upgrade the RAID box firmware move the mouse cursor to Upgrade Firmware link The Upgrade The Raid System Firmware screen appears 2 Click Browse Look in the location where the firmware upgrade file is located Select the file name MR4UTFIRM BIN and click open 3 Click the Confirm The Operation and press the Submit but ton a M Areca Technology Corporation 4 The Web Browser begins to download the firmware binary to the controller and start to update the flash ROM 5 After the firmware upgrade is complete a bar indicator will show Firmware has Been Updated Successfully Es areca Techaslogy Corporation 1 The user doesn t need to reconfigure all of the settings after the firmware upgrade is complete because all of the settings will keep us the vaules before upgrade 2 Please update all binary code BOOT FIRM and MBRO be fore you reboot the MR4UT Otherwise a mixed firmware package may hang the MobileRAID MR4UT 137 APPENDIX Appendix B SNMP Operation amp Definition Overview The In
144. user want to delete in the Select Raid Set to Delete screen The Delete Raid Set dialog boappears then press Yes key to delete it ans Digital RAID Controller Quick Volume Rgid So Raid Set Functior Raid Set Function Volume Set Fund Create Raid Set Physical Drives Delete Raid at Raid System Fu Xpa Select Raid Set to Delete Ethernet Config Comic Delete Hot Spa System informat e No Raid Set Informat 71 VT 100 UTILITY CONFIGURATION 5 5 2 3 Expand Raid Set Instead of deleting a raid set and recreating it with additional disk drives the Expand Raid Set function allows the users to add disk drive to the raid set that was created ans Digital RAID Controller Quick Volume Raid Setup EE Raid Set Function Volume Set Fund Create Raid Set Delete Raid Set Physical Drives Expand Raid System Fu xpand Raid Set Select ID Ethernet Config Vac fee To expand a raid set Click on Expand Raid Set option If there is an available disk then the Select IDE Drives For Raid Set Expansion screen ap pears Select the target raid set by clicking on the appropriate radial button Select the target disk by clicking on the appropri ate check box Press Yes to start expand the raid set The new add capacity will be define one or more volume sets Follow the instruction presented in the Volume Set Function to create th
145. vidual Disks Free Space Volume 1 RAID 5 Volume 0 10 Disk 0 Disk 1 Disk 2 145 APPENDIX 146 Easy of Use Features Instant Availability Background Initialization RAID 0 and RAID 1 volume sets can be used immediately after creation because they do not create parity data However RAID 3 and 5 volume sets must be initialized to generate parity information In Normal Initialization the initialization proceeds as a background task and the volume set is fully accessible for system reads and writes The operating system can instantly access the newly created arrays without requiring a reboot and without waiting for initialization to complete Furthermore the RAID volume set is protected against a single disk failure while initialing If using Fast Initialization the initialization process must be completed before the volume set is ready for system accesses Array Roaming The RAID box store RAID configuration information on the disk drives The adapters therefor protect the configuration settings in the event of controller failure Array roaming allows the administrators the ability to move a completele raid set to another system without losing RAID configuration information or data on that raid set So if a server fails the raid set disk drives can be moved to another server with an identical RAID controller and the disks can be inserted in any order Online Capacity Expansion Online Capacity Expansion makes it possibl
146. w the instruction presented in the Volume Set Function to create the volume sets Migrating occurs when a disk is added to a raid set Migration status is displayed in the raid status area of the Raid Set infor mation when a disk is added to a raid set Migrating status is also displayed in the associated volume status area of the vol ume set information when a disk is added to a raid set Note N 1 Once the Expand Raid Set process has started user can not stop it The process must be completed 2 If a disk drive fails during raid set expansion and a hot spare is available an auto rebuild operation will occur after the raid set expansion completes 4 7 3 4 Offline RAID Set Press UP DOWN buttons to choose the Offline RAID Set option This function is for coutomer being able to mount and remount a multi disk volume All Hdds of the selected Raidset will be put into offline state spun down and fault LED will be in fast blinking mode 41 LCD CONFIGURATION MENU 42 4 7 3 5 Activate Incomplete RaidSet When one of the disk drive is removed in power off state the raid set state will change to Incomplete State If user wants to continue to work when the RAID box is power on User can use the Activate Incomplete RaidSet option to active the raid set After user completed the function the Raid State will change to Degraded Mode 4 7 3 6 Create Hot Spare Disk Please refer to this ch
147. when additional physical disks are added to the RAID box For example in a system using two drives in RAID level 1 it is possible to add a single drive and add capacity and retain fault tolerance Normally expanding a RAID level 1 array would require the addition of two disks A third disk can be added to the existing RAID logical drive and the array can then be migrated from RAID level 1 to 5 The result would be parity fault tolerance and double the available capacity without taking the system down It is only possible to migrate to a higher RAID level by adding a disk disks in an existing array can t be reconfigured for a higher RAID level without adding a disk Online migration is only permitted to begin If all volume to be migrated are in the normal mode During the migration process the volume sets being migrated are accessed by the host system In addition the volume sets with RAID levels 1 10 3 or 5 are protected against data loss in the event of disk failure s In the case of disk failure the volume set transitions from migrating state to migrating degraded state When the migration is completed the volume set transitions to degraded mode If a global hot spare is present then it further transitions to rebuilding state Online Volume Expansion 148 APPENDIX Performing a volume expansion on the controller is the process of growing the size of a volume A more flexible option is for the array to concatenate an a
148. within the volume set in which the failure occurred In the normal status the newly installed drive will be reconfigured an online free disk But the newly installed drive is automatically assigned as a hot spare if any hot spare disk was used to rebuild and without new installed drive replaced it In this condition the Auto Declare Hot Spare status will disappeared if the RAID box has since powered off on The Hot Swap function can be used to rebuild disk drives in arrays with data redundancy such as RAID level 1 10 3 and 5 NN ee 150 APPENDIX Auto Rebuilding If a hot spare is available the rebuild starts automatically when a drive fails The RAID box automatically and transparently rebuild failed drives in the background at user definable rebuild rates If a hot spare is not available the failed disk drive must be replaced with a new disk drive so that the data on the failed drive can be automatically rebuilt and so that fault tolerance can be maintained The RAID box will automatically restart the system and the rebuild process if the system is shut down or powered off abnormally during a reconstruction procedure condition When a disk is Hot Swapped although the system is functionally operational the system may no longer be fault tolerant Fault tolerance will be lost until the removed drive is replaced and the rebuild operation is completed During the automatic rebuild process system activity will continue as no
149. ze the raid set and volume set will start to initialize it ans Digital RAID Controller Quick Volume Raid Setup Raid Set Fun Volume Set P Physical Driv Raid System Ethernet Con View System Clear Event H Raid 0 Raid 1 0 a Raid 1 Sp Initialization Mode aa NNN Foreground Initialization 5 Background Initialization ae SA no tit To Rescue Volume Raid 5 Sp No Init To Rescue Volume 5 5 2 Raid Set Function User manual configuration can complete control of the raid set setting but it will take longer time to complete than the Quick Volume Raid Setup configuration Select the Raid Set Function to manually configure the raid set for the first time or delete ex isted raid set and re configure the raid set 69 VT 100 UTILITY CONFIGURATION ans Digital RAID Controller Quick Volume Raid Setup Raid Set Function Volume Set Function Raid Set Function Physical Drives Raid System Function Ethernet Configuratio S e Expand Raid Set a en mons Offline Raid Set Sar ven AU TET Activate Raid Set Hardware Monitor Create Hot Spare Delete Hot Spare Raid Set Information System information 5 5 2 1 Create Raid Set To define raid set follow the procedure below 1 Select Raid Set Function from the main menu 2 Select Create Raid Set option from the Raid Set Function dialog box 3 A Select IDE Drives For Raid Set window is displayed showing

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