Intel Embedded Server RAID Technology: USER'S GUIDE
Contents
1. o independent stripe size configuration per logical drive o ability to create up to eight logical drives per array o auto configuration support of newly added physical drive o support for hotspares o support for disk coercion o array initialization support fast and normal o Offline data RAID 1 verfication with auto recovery mechanism o ability to prioritize configurable tasks for online rebuild check consistency migration and expansion o logical drive availability immediately after creation o variable stripe size options from8 Kbyte to 128 Kbyte Embedded Server RAID Technology 2 1 Chapter 2 RAID Levels Intel Erbedded Server RAID Technology supports RAID levels 0 1 and 10 These RAID levels are discussed in the following sections o Section 2 1 RAIDO page 2 1 o Section 2 2 RAID 1 page 2 2 o Section 2 3 RAID 10 page 2 3 2 1 RAID 0 RAIDO Figure 2 1 provides disk striping across all configured drives in the RAID subsystem RAID 0 does not provide any data redundancy but does offer the best performance of any RAID level RAID 0 breaks up data into smaller segments then stripes the data segments across each drive in the array as shown in Figure 2 1 The size of each data segment is determined by the stripe size parareter which is set during the creation of the RAID set By breaking up a large file into smaller segments Errbedded Server RAID Technology can use both IDE ports and drives to read or write the file faster2. 1 displays 5 2 Spy Service Figure 5 1Control Panel Screen Step 2 Ciick on Adninistrative Tools Services icon Spy Ser A dialog window displays with the start and stop options Step 3 Click on the Start or Stop button This starts or stops the Spy Service program depending on your selection Note You can right click on the Spy Service icon and select Stop Spy to stop the Spy program The Spy icon displays on the right side of the taskbar See Section 5 5 Spy Service Icon for more information about the icon Installing Spy Service under Linux 5 3 5 2installing Spy Service under Linux Performthe following steps to install Spy Service under Linux Spy Service runs in the background after installation Note You must have GNOVE libraries installed before you install Spy Service Step 1 Log in to GUI mode Step 2 At the Linux prompt type rpm ivh spy x x x i386 rpm Step 3 Press The rpmis extracted and the necessary files installed and started 5 3installing and Running Spy Service under Novell NetWare Performthe following steps to install Spy Service under Novell NetWare Step 1 Unzip the file Spy x x Novell zip fromthe installation CD to a floppy diskette in the A drive Step 2 Go to the Novell server prompt and type a install Messages display when the files are copied Step 3 Reboot to conplete the installation Step 4 After reboot you can type the following to see whether Spy is running modules spy Step 5 Press The information shows whether
3. Failed Disks page 3 10 Section 3 7 Checking Data Consistency page 3 11 Section 3 8 Using a Pre loaded System Drive page 3 12 3 1Configuring Arrays Configure the physical disk drives in arrays An array can consist of one to four physical disk drives depending on the RAID level A RAIDO array can consist of one to four physical drives while a RAID 1 array consists of two A RAID 10 array consists of four drives 3 2 BIOS Configuration Utility 3 2Configuration Strategies You have two choices when creating a RAID array a Maxinizing Fault Tolerance You can maximize fault tolerance to protect against loss of data by using mirroring Use mirror configuration RAID 1 to attain this objective Maxinizing Logical Drive Performance You can maximize logical drive performance by using striping Select striping configuration RAID 0 to attain this objective RAID 10 combines both striping and mirroring to provide high data transfer rates and data redundancy 3 3Assigning RAID Levels Only one RAID level can be assigned to each array Table 3 1 displays the drives required per RAID level Table 3 1Physical Drives Required per RAID Level RAID Level Mninum Number of Physical Drives Maximum Number of Physical Drives 0 One Four 1 Two Two 10 Four Four Performing a Quick Configuration 3 3 The factors you need to consider when selecting a RAID level are listed in Table 3 2 3 4Performing a Quick Configuration This section provides quick ins
4. Server RAID Technology supports four Serial ATA ports providing a cost effective way to achieve higher transfer rates and reliability Erbedded Server RAID Technology supports e RAID level 0 data striping for improved performance e RA IDlevel 1 data mirroring for improved data reliability e RA Dlevel 10 data striping and mirroring for high data transfer rates and data redundancy 1 1 RAID Benefits RAID has gained popularity because it can improve VO performance or increases storage subsystem reliability RAID 0 provides better performance while RAID 1 provides better reliability through fault tolerance and redundant data storage RAID 10 corrbines both striping and mirroring to provide high data transfer rates and data redundancy 1 1 1 Improved I O Although hard drive capabilities have improved drastically actual performance has improved only three to four times in the last decade Computing performance has improved over 50 times during the same time period RAID 0 and RAID 10 allow you to access several disks sirrultaneously 1 1 2 Increased Reliability The electromechanical components of a disk subsystem operate more slowly require more power and generate more noise and vibration than electronic devices These factors reduce the reliability of data stored on disks RAID 1 and RAID 10 systems improve data storage reliability and fault tolerance compared to single drive corrputers The additional drive in each RAID 1 array makes it possibl
5. Spy is running 5 4 Spy Service 5 4Uninstalling Spy Service Performthe following steps to uninstall Spy Service Step 1 Stop the Spy Service program See Section 5 1 Starting or Stopping Spy Service under Windows 2000 XP or 2003 for instructions on stopping Spy Service Step 2 Qick on Start Control Panel The Control Panel displays Step 3 Qick on Add Remove Programs The list of currently installed programs displays Step 4 Qick on the Spy Service programand select Remove 5 5Spy Service Icon The icon for the Spy Service displays in the bottomright corner of the Erbedded Server RAID Technology Console screen in the tray bar The icon is a round figure wearing sunglasses The icon is color coded Green means that there are no problems Yellow means that there is a rebuild in progress or there are media errors and a possible drive failure Red warns of a critical problemthat could cause the system to fail Hold the cursor over the icon mouseover and a short text displays that describes the systemstatus Right click on the icon and the following options display Stop monitor media error The programstops searching for media errors Erase error log The programdeletes the errors that were recorded on the error log Stop Spy This stops the programand deletes the icon fromthe taskbar You can start the programagain using the instructions in Section 5 1 Starting or Stopping Spy Service under Windows 2000 XP or 2003 Spy Service Icon 5 5 Do the following
6. the array s with the current logical drive Step 8 Set the stripe size Step 9 After you define the current logical drive select Accept and press Step 10 Save the configuration when the CU prompts you to do so Step 11 Initialize the logical drives you configured Section 3 5 4 Initializing Logical Drives provides detailed instructions Configuring Arrays and Logical Drives 3 9 3 5 4hnitializing Logical Drives You can initialize the logical drives using individual initialization which initializes a single logical disk There are two methods to initialize a logical drive using the individual initialization procedure using the CU For the first method performthe following steps to initialize a logical drive using the Initialize menu Step 1 On the Management Menu select Initialize Step 2 Use the space bar to highlight the logical drive to initialize The logical drive nane is highlighted in yellow To de select the logical drive press the space bar again Step 3 Press Step 4 Select Yes at the prompt and press to begin the initialization A graph shows the progress of the initialization until it is complete Step 5 After the initialization is complete press to return to previous menus If you press while initialization is in progress the following options display Stop The CU stores the percentage of the initialization already completed When you restart initialization it continues fromthe last percentage completed rather than fromzero percen
7. GO Software Pty Lirrited Mep 27 Tacoma Blvd Pasadena SA 5042 Phn 0403 063 991 Fax 08 8219 0105 ABN 54 008 044 906 ACN 008 044 906 Em support gosoftware comau Web www gosoftware comau Intel Embedded Server RAID Technology USER S GUIDE December 2005 e Chapter 1 Overview provides an overview of features and benefits of the Erbedded Server RAID Technology Chapter 2 RAID Levels describes the RAID levels supported e Chapter 3 BIOS Configuration Utility explains how to configure SATA and arrays assign RAID levels plan the array configuration optimize storage and use the IDE Setup Utility e Chapter 4 Operating System Installation contains the procedures for installing the Windows 2000 2003 and XP Red Hat Linux SuSE Linux and Novell NetWare operating systems when using the Erbedded SATA Software RAID Technology Chapter 5 Spy Service describes the Spy Service program which looks for errors failed drives and status changes in the hard drives Chapter 6 Troubleshooting describes the problems you might encounter and suggests solutions 1 1 RAID Benefits 1 1 1 Improved VO 1 1 2 Increased Reliability 1 2 Product Features 1 2 1 SATA Ports 1 2 2 BIOS Features 1 2 3 Driver Features 1 2 4 Manageability Disk Console 2 1 RAIDO 2 2 RAID 1 2 3 RAID 10 3 1 Configuring Arrays 3 2 Configuration Strategies 3 3 Assigning RAID Levels 3 4 Performing a Quick Configuration 3 5 Configuring Array
8. S support for device insertion or removal independent support for WC RC and UDMA direct memory access support for Stop On Error during bootup support to disable enable BIOS state 1 2 3 Driver Features The driver features include eeeoee special interface for configuration information configuration changes and manageability optimized disk access support for RAID levels 0 1 and 10 support for Stand by and Hbernation in Windows 2000 XP and 2003 Note The following items require Spy Service to be running in order to work error logging in the operating system event log and on disks support for online mirror rebuilding support for check consistency for mirrored disks bootable RAIDO 1 and 10 support 1 4 Overview customized messages specific for OBM original equipment manufacturer soft bad block management 1 2 4 Manageability Disk Console The features you can use to manage the logical and physical disks in the systeminclude o configuration information display in Configuration Utility and Hyper Configuration Utility o support for RAID levels 0 1 and 10 o online mirror rebuilding in Configuration Utility online consistency checks in BIOS Configuration Utility o array managerrent software o error logging and notification o support for power management features o support for hot device insertion and removal o automatic resume of rebuilding on restart o support for manual rebuild o physical drive roaring
9. The chapter contains the following sections 4 1Windows 2000 2003 XP Driver Installation Performthe following steps to install the Windows 2000 or 2003 driver onto the RAID configured drives 1 2 3 Boot the systemwith the Windows 2000 or 2003 Boot Installation CD or diskette The follow ing message displays Setup is inspecting your corrputers hardware configuration Next a prompt displays At the prompt press F6 to install the RAID SCSI adapter driver Wren installation prompts for a key after copying some files press S to add the SATA RAID driver You are pronpted for the driver diskette 4 2 Operating System Installation Insert the Erbedded SATA Software RAID driver floppy diskette and press Scroll down the list until the appropriate selection for your systemwhich contains the Erbedded SATA Software RAID and for your operating systemdisplays then click Continue with the normal installation procedure 4 1 1Updating the Windows 2000 2003 XP Driver Performthe following steps to update the Windows 2000 or 2003 driver or install the Windows 2000 or 2003 driver into an existing system booted froma standard IDE drive Gick the Windows Start button The Windows menu displays Select Settings The Settings menu displays to the right Qick Control Panel The Control Panel window displays Select Adapters Select the Drivers tab Scroll down the list until the appropriate selection for your systemwhich contains
10. This makes RAIDO ideal for applications that require high bandwidth but do not require fault tolerance Uses Provides high data throughput especially for large files Any environrrent that does not require fault tolerance Strong Points Provides increased data throughput for large files No capacity loss penalty for parity Weak Points Does not provide fault tolerance All data lost if any drive fails Drives One to two 2 2 RAID Levels 2 2 RAID 1 RAID 1 Figure 2 2 duplicates all data fromone drive to a second drive RAID 1 provides complete data redundancy but at the cost of doubling the required data storage capacity Figure 2 2RAID 1 Array Segment 1Segment 3Segrrent 5Segment 2Segrrent 4Segment 6Segment 7Segment 8 Uses Databases or any other mission critical environment that requires fault tolerance Strong Points Provides complete data redundancy RAID 1 is ideal for any application that requires fault tolerance Weak Points Requires twice as many hard drives Performance is impaired during drive rebuilds Drives Two Segment 1Segrrent 2Segment 3Segment 1 DuplicatedSegrent 2 DuplicatedSegment 3 DuplicatedSegment 4Segment 4 Duplicated RAID 10 2 3 2 3RAID 10 RAID 10 is a combination of RAID 1 and RAIDO RAID 10 has mirrored drives It breaks up data into smaller blocks then stripes the blocks of data to each RAID 1 RAID set Each RAID 1 RAID set then duplicates its data to its other drive The size of each block is determined by the s
11. ate logical drives with partial and or multiple physical arrays New Configuration deletes the existing configuration and replaces it with the configuration that you specify View Add Configuration lets you display or modify an existing configuration Caution The New Configuration option erases the existing configuration data when you save the new array 3 8 BIOS Configuration Utility configuration If you do not want to delete the existing configuration data use View Add Configuration Performthe following steps to configure a disk array using New Configuration or View Add Configuration Step 1 Select Configure View Add Configuration fromthe CU Management Menu The CU displays an array selection window Step 2 Select the physical drives to include in the array by pressing the arrow keys to select specific physical drives Step 3 Fress the spacebar to associate the selected physical drive with the current array The indicator for the selected drive changes from READY to ONLINAfarray nurrber drive nurrber For example ONLIN A1 3 means array 1 with disk drive 3 Step 4 Press after you finish creating the current array Step 5 Press to configure logical drives Step 6 Set the RAID level for the logical drive by highlighting RAID and pressing A list of the available RAID levels for the current logical drive appears Step 7 Set the logical drive size by moving the cursor to Size and pressing By default the logical drive size associates the available space in
12. ays and Logical Drives 3 5 3 5 3 1Physical Drive Parameters You can change the write policy and read policy in the physical drives but not the logical drives 3 5 3 2Logical Drive Parameters For the logical drive you can change the RAID level and stripe size Table 3 3 contains descriptions of the logical drive parameters 3 5 3 3Easy Configuration In Easy Configuration the OU associates each hard drive with a single logical drive If logical drives have already been configured the CU does not change their configuration Performthe following steps to create arrays using Easy Configuration Step 1 Select Configuration Easy Configuration at the main menu The Configuration Menu screen displays as shown in Figure 3 1 Table 3 3Logical Drive Parameters and Descriptions Pararreter Description RAID Level The nurrber of physical drives in a specific array deterrrines the RAID levels that can be implemented with the array RAID 0 requires one or two physical drives RAID 1 requires exactly two physical drives RAID 10 requires exactly four physical drives Stripe Size The stripe size parameter specifies the size of the segment written to each disk in a RAID configuration You can set the stripe size to 4 8 16 32 64 or 128 Kbytes The default is 64 Kbytes A larger stripe size produces higher read performance If your computer regularly performs randomread requests choose a smaller stripe size 3 6 BIOS Configuration Utility Figure 3 1Configuration Me
13. e to prevent data loss froma hard drive failure You can reconstruct missing data fromthe remaining data drive to a replacement drive 1 2 Product Features 1 2 1 SATA Ports The Erbedded Server RAID Technology can support up to six ports Refer to your server board documentation for the number of supported 1 2 2 BIOS Features The BIOS features include eee4eee es RAID support before the operating system loads automatic detection and configuration of disk drives ability to handle configuration changes support for Interrupt 13 and Enhanced Disk Drive Specification support for RAID levels 0 1 and 10 special handling of error log and rebuilding ROMoption size of 64 Kbyte automatic resume of rebuilding and check consistency support for BIOS Boot Specification BBS If available in systemBIOS this allows the user to select the adapter from which to boot Specification v1 01 January 11 1996 co existence with SCSI and CD devices 48 bit LBA support for read write and cache flush functions independent stripe size configuration on each logical drive ability to select a logical drive as boot device support for power on self test POST Memory Management PMM for the BIOS memory requirement Specification v1 01 Noverrber 21 1997 enhanced disk drive support Specification 2 9 revision 08 March 12 1998 Industry standard EBDA Self monitoring analysis and reporting technology S MA RT notification at POST run time BIO
14. ess The File Copy Status displays to confirmthat the driver files are installed then a GUI prompt displays 13 Select Qustorrized and press 14 Continue the normal operating systeminstallation DAWN oN ze 9 10 11 12 LLTPP Chapter 5 Spy Service This chapter describes the Spy Service programand contains the following sections o Section 5 1 Starting or Stopping Spy Service under Windows 2000 XP or 2003 page 5 1 o Section 5 2 Installing Spy Service under Linux page 5 3 o Section 5 3 Installing and Running Spy Service under Novell NetWare page 5 3 o Section 5 4 Uninstalling Spy Service page 5 4 o Section 5 5 Spy Service Icon page 5 4 The Spy Service programlooks for errors failed drives and status changes It can mark drives as failed after the error threshold is reached and start automatic rebuilds It runs in the background of the Erbedded SATA Console When operating under Windows Spy enables the self monitoring analysis and reporting technology S MA RT on all of the hard drives at startup and polls for any status changes in the drives every 60 minutes S MA RT monitors hard drives for drive failures 5 1Starting or Stopping Spy Service under Windows 2000 XP or 2003 You can use the Control Panel to access the option to start or stop Spy Service Performthe following steps to start or stop Spy Service Step 1 Cick on Start gt Settings gt Control Panel The screen shown in Figure 5
15. firmation prompt The indicators for the selected drive changes to REBLD Step 5 When rebuild is complete press any key to continue Step 6 Press to display the Management Menu A second way to performa manual rebuild on an individual drive is as follows Step 1 Select the option fromthe CU Objects Physical Drive submenu Step 2 Press the arrow keys to select the physical drive to be rebuilt and press Step 3 Select the Rebuild option fromthe action menu and respond to the confirmation prompt Step 4 When rebuild completes press any key to display the previous menu 3 6 1Inserting a Previously Removed Drive from a RAID 1 Array If you have auto rebuild selected in the BIOS the rebuild begins as soon as you enter the BIOS CU If auto rebuild is disabled you can choose whether to rebuild If you decide to rebuild the drive follow the procedure in Section 3 6 Rebuilding Failed Disks page 3 10 3 7Checking Data Consistency The Check Consistency feature verifies the correctness of the redundancy data in the selected logical drive and causes the CU to automatically correct any differences found in the data This feature can be used only on a RAID 1 logical drive to verify the data consistency between the nirrored physical drives When a data inconsistency is found the CU can either only report the inconsistency or report and fix the inconsistency depending upon the option selected in Adapter settings In the CU performthe following steps to chec
16. k consistency 3 12 BIOS Configuration Utility Step 1 On the Management Menu select Check Consistency and press The configured logical drives display Step 2 Use the space bar to select a logical drive to check for consistency Note that the logical drive should be at a RAID 1 level to start check consistency If you select a RAID 0 logical drive a message displays stating that a check consistency cannot be performed To de select a logical drive press the space bar again Step 3 Press Step 4 At the prompt select Yes to start check consistency and press If you press while the check consistency is in progress the following options display Stop The CU stores the percentage of the check consistency already completed When you restart the check consistency it continues fromthe last percentage completed rather than fromzero percent Continue Check consistency continues normally Abort The check consistency is completely aborted If you restart check consistency it begins at zero percent 3 8 Using a Pre loaded System Drive Loading an operating systemon a stand alone drive and then attempting to add that drive to a RAID array will cause a blue screen upon reboot Erbedded Server RAID Technology 4 1 Chapter 4 Operating System Installation This chapter contains the procedures for installing the Windows 2000 2003 and XP Red Hat Linux SuSE Linux and Novell NetWare operating systems when using the Intel Erbedded Server RAID Technology
17. n method and configure the drive s BIOS reports that a mirrored array is in degraded mode Make sure all physical drives are properly connected and are powered on Reconnect replace or rebuild any drive that has failed 6 2 Troubleshooting One of the hard drives in a mirrored RAID 1 array has failed Replace the failed drive with another drive that has the sane or greater capacity You insert a new drive with no configuration into the slot which is already part of a mirrored RAID 1 array Press any key to enter the BIOS Configuration Utility Ctrl E to configure the new drive Merk the drive as one of the following o Failed If the AutoRebuild option is disabled in the configuration utility o Rebuilding If the AutoRebuild option is enabled in the configuration utility You insert a new drive with no configuration into the slot which is already part of a striped RAID 0 array or there is a striped RAID 0 array by itself in the system Press any key to enter the BIOS Configuration Utility Ctrl E to configure the new drive Copyright 2014 by GO Software Pty Lirrited
18. nu Screen Step 2 Press the spacebar to associate the selected physical drives with the current array The indicator for the selected drives changes from READY to ONLINA array nurber drive nurrber For example ONLIN A1 3 means array 1 with disk drive 3 Step 3 Press after you finish creating the current array Step 4 Press to select configurable arrays Step 5 Fress the spacebar to select the array The logical drive configuration screen displays as shown in Figure 3 2 The logical drive configuration screen displays the logical drive number RAID level logical drive size the number of stripes in the physical array the stripe size and the state of the logical drive Configuring Arrays and Logical Drives 3 7 Figure 3 2Logical Drive Configuration Screen Step 6 Set the RAID level for the logical drive by highlighting RAID and pressing The available RAID levels for the current logical drive display Step 7 Select a RAID level and press Step 8 Set the RAID logical drive size and stripe size Step 9 When you have defined the current logical drive select Accept and press Step 10 Repeat step 7 to step 10 to configure additional logical drives Step 11 Save the configuration when prompted and press to return to the Management Menu Step 12 Initialize the logical drives Refer to Section 3 5 4 Initializing Logical Drives for detailed instructions 3 5 3 4New Configuration and View Add Configuration New Configuration and View Add Configuration associ
19. pace to the size of the smallest drive Reduced performance during rebuilds Four Yes 3 4 BIOS Configuration Utility Step 5 Define the logical drive s using the space in the arrays Step 6 lnitialize the new logical drive s 3 5Configuring Arrays and Logical Drives This section provides detailed instructions for configuring the logical disks and arrays 3 5 1Starting the BIOS Configuration Utility During bootup the following BIOS banner displays the following Press Ctrl E to run LSI Logic Evbedded SATA RAID Setup Utility Hold down the key while you press The main menu for the utility displays 3 5 2Selecting a Configuration Method Section 3 5 3 Configuring Physical Arrays and Logical Drives provides detailed instructions for using each configuration method 3 5 3Configuring Physical Arrays and Logical Drives This subsection provides instructions for using the Easy Configuration New Configuration and View Add Configuration to configure arrays and logical drives LSI Logic recommends using drives with the same capacity in a specific array If you use drives with different capacities in an array the CU treats all these drives as if they have the capacity of the smallest drive The nurrber of physical drives in a specific array determines the possible RAID levels that you can implement with the array RAID O requires one to four physical drives RAID 1 requires two physical drives and RAID 10 requires four physical drives Configuring Arr
20. s and Logical Drives 3 5 1 Starting the BIOS Configuration Utility 3 5 2 Selecting a Configuration Method 3 5 3 Configuring Physical Arrays and Logical Drives o Physical Drive Pararreters o Logical Drive Parameters o Easy Configuration o New Configuration and View Add Configuration 3 5 4 Initializing Logical Drives 3 6 Rebuilding Failed Disks 3 6 1 Inserting a Previously Removed Drive froma RAID 1 Array 3 7 Checking Data Consistency 3 8 Using a Pre loaded System Drive 4 1 Windows 2000 2003 XP Driver Installation 4 1 1 Updating the Windows 2000 2003 XP Driver 4 1 2 Confirming the Windows 2000 2003 XP Driver Installation 5 1 Starting or Stopping Spy Service under Windows 2000 XP or 2003 5 2 Installing Spy Service under Linux 5 3 Installing and Running Spy Service under Novell NetWare 5 4 Uninstalling Spy Service 5 5 Spy Service Icon 6 1 Problems and Suggested Solutions 3 1 Physical Drives Required per RAID Level 3 2 Physical Drives Required per RAID Level 3 3 Logical Drive Parameters and Descriptions 6 1 Problems and Suggested Solutions 3 1 Configuration Menu Screen 3 2 Logical Drive Configuration Screen 3 3 Logical Drive Submenu 5 1 Control Panel Screen Chapter 1 Overview This manual describes the Intel Erbedded Server RAID Technology This chapter provides an overview of this product and contains the following sections e Section 1 1 RAID Benefits page 1 1 e Section 1 2 Product Features page 1 2 The Errbedded
21. t Continue initialization continues normally Abort The initialization is completely aborted If you restart initialization it begins at zero percent For the second method performthe follow ing steps to initialize a logical drive using the Objects menu Step 1 Fromthe Management Menu select Objects Logical Drive submenu as shown in Figure 3 3 The configured logical drives display 3 10 Configuration Utility Figure 3 3Logical Drive Submenu Step 2 Select a logical drive if there is more than one configured and press Step 3 Select Initialize fromthe submenu and press Step 4 Select Yes at the prormpt and press The CU displays a bar graph showing the initialization progress Step 5 When initialization completes press to return to the previous menu If you press while initialization is in progress the options Stop Continue and Abort display as explained on the previous page 3 6Re building Failed Disks A manual rebuild is used to rebuild failed drives The CU allows manual rebuild for an individual drive Performthe following steps to rebuild a drive Step 1 Select Rebuild fromthe CU Managerrent Menu The CU displays a device selection window that marks the failed drives with FAIL indicators Step 2 Fress the arrow keys to highlight the drive to be rebuilt Step 3 Press the spacebar to select the highlighted physical drive for rebuild Checking Data Consistency 3 11 Step 4 After selecting the physical drive press and select Yes at the con
22. tallation steps for users that are familiar with configuration utilities and tools Refer to Section 3 5 Configuring Arrays and Logical Drives for detailed configuration instructions To ensure best performance select the optimal RAID level for the logical drive you create Performthe following steps to configure arrays and logical drives using the Configuration Utility CU Step 1 Boot the system Step 2 Start the CU by pressing Step 3 Select a configuration method Step 4 Create arrays using the available physical drives Table 3 2Physical Drives Required per RAID Level Level Description and Use Pros Cons Number of Drives Fault Tolerant 0 Data divided in blocks and distributed sequentially pure striping Use for non critical data that requires high performance High data throughput for large files No fault tolerance Data is lost if a drive fails One to four No 1 Data duplicated on another disk mirroring Use for read intensive fault tolerant systems 100 percent data redundancy providing fault tolerance More disk space required Reduces usable disk space to the size of the smallest drive Reduced performance during rebuilds Two Yes 10 A combination of RAID 1 data mirroring and RAID 0 data striping Use for medium sized databases or any environment that requires a higher degree of fault tolerance and moderate to mediumcapacity Provides both high data transfer rates and complete data redundancy More disk space required Reduces usable disk s
23. the Erbedded SATA Software RAID and for your operating systemdisplays then click 7 Select it then remove it by clicking the Remove button 8 Click the Add button 9 Select the Have Disk button 10 Insert the diskette into the floppy drive 11 Select drive letter A and click on 12 Select LSI Logic Errbedded SATA Controller and click OK 13 After Windows NT or Windows 2000 copies the driver reset the system DAWN 4 1 2Confirming the Windows 2000 2003 XP Driver Installation Performthe following steps to confirmthat the Windows 2000 2003 or XP driver is installed properly Gick the Windows Start button The Windows menu displays Select Settings The Settings menu displays to the right Qick Control Panel The Control Panel window displays Select Adapters Select the Drivers tab The controller appears in the list as LSI Logic Erbedded SATAController Select the Devices tab One or more entries display as LSI Logic Erbedded SATA xx under LSI Logic Embedded SATA Controller The Intel RAID controller displays There is one driver per controller to remove or add Press twice lect Continue and press The storage devices and driver names display so you can match the drivers to the ardw are devices lect Continue and press lect Continue and press again The message Loading driver displays then the screen Create Sys Volume plays lect Create and press The Main Menu displays elect Continue Installation and pr
24. to place the Spy icon on the Taskbar when operating under Windows 2000 Qick on Start Programs MegaRAID IDE MegaRAID IDE Spy This places the Spy icon on the Taskbar Note The Spy icon displays on the Taskbar automatically under the Windows Server 2003 operating system 5 6 Spy Service Erbedded Server RAID Technology 6 1 Chapter 6 Troubleshooting 6 1Problems and Suggested Solutions Table 6 1 describes possible problems you might encounter along with suggested solutions Table 6 1Problems and Suggested Solutions Problem Suggested Solution Drives are not detected OR The systemhangs when the adapter ROM for Erbedded SATA Software RAID scans the SATA ports Make sure that the cable ends are connected properly Make sure that the power cables to the drives are connected properly Change cables If everything fails change the drive s o o o o Operating system does not boot Check the system BIOS configuration for POI interrupt assignments Make sure sone Interrupts are assigned for PO Make sure that you have properly selected the Boot Device in the system BIOS setup OMOS Setup An error occurs while reading the configuration data on a drive The drive is bad and needs to be replaced There is no existing RAID configuration on any of the drives connected to the systemand the message Intel Embedded Server RAID Technology Not Configured displays Press any key to enter the BIOS Configuration Utility Ctrl E then select a configuratio
25. tripe size pararreter which is set during the creation of the RAID set RAID 10 can sustain one drive failure in each array while maintaining data integrity Figure 2 3 shows a RAID 10 array with four disk drives Figure 2 3RAID 10 Array Uses Works best for data storage that must have 100 redundancy of RAID 1 mirrored arrays and that also needs the enhanced l O performance of RAIDO striped arrays RAID 10 works well for medium sized databases or any environment that requires a higher degree of fault tolerance and moderate to medium capacity Strong Points Provides both high data transfer rates and complete data redundancy Weak Points Requires twice as many drives Drives 4 RAID 1Disk 2Disk 1Disk 4Disk 3RAID 1RAID OSegment 1Segrrent 3Segment 5Segment 1Segment 3Segment 5Segrrent 2Segrrent 4Segment 6Segment 6Segment 2Segment 4Segment 6 2 4 RAID Levels Erbedded Server RAID Technology 3 1 Chapter 3 BIOS Configuration Utility This chapter explains how to configure Intel Erbedded Server RAID Technology and arrays assign RAID levels plan the array configuration optimize storage and use the IDE Setup Utility This information is presented in the following sections Section 3 1 Configuring Arrays page 3 1 Section 3 2 Configuration Strategies page 3 2 Section 3 3 Assigning RAID Levels page 3 2 Section 3 4 Performing a Quick Configuration page 3 3 Section 3 5 Configuring Arrays and Logical Drives page 3 4 Section 3 6 Rebuilding
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