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PEGASUS2 R6, R4, R8 Product Manual

1. Pegasus R4 1 Pegasus R4 2 982 The first Pegasus unit is Pegasus R4 or R6 R8 the second is Pegasus R4 2 6 2 R8 2 the third is Pegasus R4 3 or R6 3 R8 3 and so on The Pegasus units are listed by the order in which they are recognized not by the cable configuration 19 Pegasus2 R4 R6 R8 Product Manual PERUSING THE PROMISE UTILITY INTERFACE The PROMISE Utility interface consists of menus and icons each leading you to a specific function The PROMISE Utility interface with the Dashboard displayed Drop down menus in the Menu Bar Promise Utility View Dashboard Device Storage Admin Window Help eoo0 Pegasus2 R6 Lie Dashboard Wizard Physical Drive Disk Array Logical Drive Subsystem Information Events Background Activities muuci Gu System Status f Event Information Device Severity Time Description l Ctrl 1 Info Sep 3 2013 08 13 30 The system is started Tool bar icons SEP 1 Info Sep 3 2013 08 13 30 SEP is found Physical Drive 3 Disk Array 3 Logical Drive 9 Spare Drive Controller Power Supply Unit 23 Storage Overview Device Number Present Controllers 1 Disk Arrays 1 Logical Drives 1 5 1 Total Physical Capacity 18 TB Physical Drives Unconfigured 0 Byte Configured 15 TB Spare Drives M id Click the lock to prevent further changes e PROMISE Utility About C
2. Making Disk Array SETTINGS To make disk array settings 1 Do one of the following actions e From the Dashboard window click the Disk Array link e From the Storage menu choose Disk Array Mouse over the disk array you want then click the Settings button Make setting changes as required e Enter change or delete the alias in the Alias field Maximum of 32 characters letters numbers space between characters and underline e Enable Media Patrol Check to enable uncheck to disable on this array e Enable PDM Check to enable uncheck to disable on this array Click the Save button Note You can also enable or disable Media Patrol for the entire RAID system see Making Media Patrol Settings on page 41 65 Pegasus2 R4 R6 R8 Product Manual LOCATING A Disk ARRAY This feature causes the drive carrier LEDs to flash for one minute to assist you in locating the physical drives that make up this disk array To locate a disk array 1 Doone of the following actions e From the Dashboard window click the Disk Array link e From the Storage menu choose Disk Array 2 Mouse over the disk array you want then click the Locate button The Drive Power Status LED for the physical drives that make up the disk array blink blue and orange for one minute Running the Locate function to identify a disk array blink blue and orange 66 Promise Technologies DELETING A Disk ARRAY To delete a di
3. DISCLAIMER OF OTHER WARRANTIES 145 Your RESPONSIBILITIES 146 RETURNING THE PRODUCT Fon REPAIR 146 APPENDIX A 148 TRANSFERRING Physical Harp Disk From Mac To Pecasus2 148 PASS THROUGH DISK PROCEDURE FOR MAc 148 150 IMPORTANT INFORMATION 150 HARD DRIVE COMPATIBILITY 150 GNU GENERAL PUBLIC LICENSE 151 Promise Technologies Promise Technologies INTRODUCTION TO PEGASUS2 This chapter covers the following topics e Architecture e Protocol Support e Key Benefits e Specifications e Hardware PROMISE Technology s Pegasus2 R8 R6 and R4 are direct attached storage DAS solutions for external storage targeted for small and medium business SMB users small office home office SOHO users and digital Audio and Video production professionals Pegasus2 models R4 R6 R8 are operationally compatible with the original release Pegasus R4 and R6 models Use the latest version of the PROMISE Utility to monitor the Pegasus2 status and perform maintenance and management functions The latest version of the PROMISE Utility can also be used for the original release of Pegasus Important If you are planning to transfer a Hard Disk Drive HDD from your Mac and want to retain user settings and permissions and keep the data please see Transferring A Physical Hard Disk From Mac To Pegasus2 on page 148 Pegasus2 R4 R6 R8 Product Manual ARCHITECTURE The Pegasus2 architectur
4. NN 119 Pegasus2 R4 R6 R8 Product Manual Drive CARRIER LEDs The Pegasus unit spins up the disk drives sequentially to equalize power draw during start up After a few moments e The Power Status LEDs turn blue e The Activity LEDs turn blue if a drive is installed The drive carrier Power Status LEDs report the condition of the physical drives See the table below Drive carrier LEDs 74 Power Status Drive Activity Drive Carrier LEDs State Power Status Drive Activity Blinking Blue and Orange Locator feature or Drive is rebuilding Drive error or failure See Physical Drive Problems on page 106 for a discussion of rebuilding and failed physical drives for more information The Locator feature is triggered from the PROMISE Utility It causes the LEDs to blink orange and blue for one minute That action helps you find the specific drive See Locating a Physical Drive on page 51 Locate feature on a drive carrier lt Power Status LEDs blink blue and orange 120 Promise Technologies PROMISE UTILITY If you can open the PROMISE utility but you cannot create or delete disk arrays and logical drives nor can you make settings changes check the UI lock See Unlocking the UI on page 15 VIEWING THE Event Logs Viewing Event Logs includes e Viewing Runtime Events e Viewing NVRAM Events e Event Severity Descriptions VIEWING Runtime EVENTS To display Runtime Events clic
5. Task 2 Logical Drive Creation To create your logical drive 1 Enter your information and choose your options e Enter a logical drive alias the field provided e Choose a RAID level from the dropdown menu Note the Max capacity value Then enter a capacity value the field provided and choose a unit of measure from the dropdown menu e Enter a value for Capacity and choose the unit for the value MB GB e Choose a Stripe size 64 KB 128 KB 256 KB 512 KB and 1 MB are available e Choose a Sector size 512B 1 KB 2 KB and 4 KB are available 63 Pegasus2 R4 R6 R8 Product Manual Choose a Read cache Policy The choices are Read Cache Read Ahead cache and None Choose a Write cache Policy The choices are WriteThru write through and WriteBack Write back requires a Read Cache or Read Ahead Read Cache Policy RAID 50 only Choose the number of axles to use If you want the PROMISE Utility to format your logical drives leave the Format box checked For additional format options see Formatting Your Logical Drives on page 76 2 Click the Add button The new logical drive appears on the list at the right If there is capacity remaining you can create an additional logical drive 3 Click the Next button to continue The Create Spare Drive screen displays Task 3 Spare Drive Creation create your spare drive 1 For each of the following items accept the default or change the
6. Uncheck the Enable This Schedule box to disable this schedule Check the box to enable this schedule Click the Save button To return to currently running background activities click the Background Activities button DELETING A SCHEDULED BACKGROUND AcriviTY To delete a scheduled background activity 1 2 Click on the Background Activities icon Click the Scheduler button The list of scheduled background appears Mouse over the background activity then click the Delete button Type the word confirm in the field provided Click the Confirm button To return to currently running background activities click the Background Activities button 40 Promise Technologies Media PATROL Media Patrol is a routine maintenance procedure that checks the magnetic media on each disk drive Media Patrol checks are enabled by default on all disk arrays and spare drives Media Patrol is concerned with the media itself not the data recorded on the media If Media Patrol encounters a critical error it triggers PDM if PDM is enabled on the disk array See Making Disk Array Settings on page 65 MAKING MEDIA PATROL SETTINGS To make Media Patrol settings 1 2 Click the Background Activities icon Click the Settings button Check the Enable Media Patrol box to enable uncheck to disable This settings enables or disables Media Patrol for all physical drives Click the Confirm button Click the X icon to close t
7. number IMPORTANT Obtain an RMA number from Technical Support before you return the product and write the RMA number on the label The RMA number is essential for tracking your product and providing the proper service 146 Promise Technologies Return ONLY the specific product covered by the warranty Do not ship cables manuals CDs etc USA and Canada Asia Pacific Other Countries PROMISE Technology Inc Customer Service Dept Attn 47654 Kato Road Fremont CA 94538 Please return the product to your dealer or retailer or Contact PROMISE technical support for instructions before shipping the product Please check PROMISE E Support https support promise com for the location nearest you Contact the office or repair depot for full instructions before shipping the product You must follow the packaging guidelines for returning products e Use the original shipping carton and packaging e Include a summary of the product s problem s e Write an attention line on the box with the RMA number e Include a copy of your proof of purchase You are responsible for the cost of insurance and shipment of the product to PROMISE Note that damage incurred due to improper transport or packaging is not covered under the Limited Warranty When repairing returned product s PROMISE may replace defective parts with new or reconditioned parts or replace the entire unit with a new or reconditioned unit In the e
8. 1 Do one of the following actions e From the Dashboard window click the Disk Array link From the Storage menu choose Disk Array 2 Mouse over the disk array you want then click the View button Disk array information includes Disk Array ID DAO etc Alias If assigned Operational Status OK Degraded or Offline Media Patrol Enabled or disabled on this array Enabled or disabled on this array Total Physical Capacity Maximum capacity including used and unused capacity on the physical drives Configurable Capacity Data capacity of the array Free Capacity Unconfigured or unused capacity on the physical drives Max Contiguous Free Capacity A single chunk of used capacity on the physical drives Number of Physical Drives The number of physical drives on this array Number of Logical Drives The number of logical drives on this array Number of Dedicated Spares The number of spare drives dedicated to this array Available RAID Levels RAID levels that this disk array can support 57 Pegasus2 R4 R6 R8 Product Manual CREATING A Disk ARRAY MANUALLY This feature creates a disk array only You can also use the Wizard to create a disk array with logical drives and spare drives at the same time To create a disk array 1 From the Dashboard menu click the Disk Array link 2 Click the Create Disk Array button 3 Accept the defaults or make changes e Enter an al
9. Drives PD ID Type Revertible Media Type There are no configured spare drives in the disk array Submit Cancel id Click the lock to prevent further changes 3 Doone of the following actions e If you agree with the proposed configuration click the Submit button The Wizard creates your disk array and logical drive If you have a Pegasus R6 the Wizard also creates a spare drive e If you do NOT agree with the proposed configuration click the Cancel button to return to the original Automatic Configuration menu 60 Promise Technologies CHoosiNG ExPRESS CONFIGURATION To use the Express Configuration Wizard 1 From the Storage menu choose Wizard 2 Click the Express button The Express configuration dialog box appears See Figure 7 Express Configuration dialog box Pegasus2 R6 E kandi B B dc LA Dashboard Wizard Physical Drive Disk Array Logical Drive Subsystem Information Events Background Activities 2 Express Configuration Express Configuration Redundancy Capacity Performance Spare Drive Number of Logical Drives 1 Application Type File Server Next Cancel m Summary id Click the lock to prevent further changes 3 Check the boxes to choose any one or a combination of Redundancy The array remains available if a physical drive fails e Capacity The greatest possible amount of data capacity e Performance The highe
10. Figure 6 Warning message The disk you inserted was not readable by this computer Initialize Ignore a a Normally you never see this warning message for Pegasus logical drive because the PROMISE Utility formats your logical drives automatically If the warning message appears try using the computer s disk utility to REPAIR the problem logical drive For more information see the utility s online help or the computer s User Manual If the disk utility cannot repair the logical drive contact Technical Support for advice and assistance See Contacting Technical Support on page 140 133 Pegasus2 R4 R6 R8 Product Manual SUBSYSTEM PROBLEMS Subsystem problem troubleshooting includes e Diagnosing a Subsystem Problem e Overheating e Power Supply DIAGNOSING A SUBSYSTEM PROBLEM Check System Status on the Dashboard tab If a yellow es or red X e appears in the System Status box 1 Click the name link of the component with the red X e icon System Status box on the Dashboard amp d 4 x j Dashboard Wizard Physical Logical Drive sical Drive Disk Array Model Pegasus2 R6 2 System Status wee Physical Drive SH Disk Array 3 Logical Drive 9 Spare Drive fui Controller 9 Power Supply Unit NR Fan Voltage eccoccoctco ED Temperature ai Click the lock to make changes The list contain
11. LEDs for the physical drives that make up the logical drive blink blue and orange for one minute Running the Locate function to identify a disk array Drive Power Status LEDs blink blue and orange blink blue and orange 76 Promise Technologies DELETING A LocicAL DRIVE A E This action requires Administrator or Super User privileges To delete a logical drive 1 Do one of the following actions e Click the Logical Drive icon e From the Storage menu choose Logical Drive The list of logical drives appears Mouse over the logical drive you want then click the Delete button In the Confirmation box type the word confirm in the field provided and click the Confirm button INITIALIZING A LoaicAL DRIVE Initialization is normally done to logical drives after they are created from a disk array E To initialize a logical drive 1 Click on the Background Activities icon The list of background activities appears Mouse over Initialization and click the Start button Check the box to the left of the logical drive you want to initialize 77 Pegasus2 R4 R6 R8 Product Manual 4 Choose the initialization option you want e Quick Initialization Check the box and enter value in the Quick Initialization Size field This value is the size of the initialization blocks in MB e Full Initialization Do not check the box Enter hexadecimal value in the Initialization Pattern in Hex field or us
12. Not Enabled e Dedicated to Array ID number of the disk array to which the spare is dedicated Items with an asterisk are adjustable under Making Spare Drive Settings on page 85 For Spare Check see Running Spare Check on page 85 3 Click the X icon to close the information panel 83 Pegasus2 R4 R6 R8 Product Manual CREATING A SPARE Drive MANUALLY This feature creates a spare drive only You can also use the Wizard to create a disk array with logical drives and spare drives at the same time See Spare Drives for more information For more information on settings options see Spare Drives on page 92 To create a spare drive 1 From the Dashboard window click the Spare Drive link 2 Click the Create Spare Drive button 3 For each of the following items accept the default or change the settings as required e Check the Revertible box if you want a revertible spare drive A revertible spare drive returns to its spare drive assignment after you replace the failed physical drive in the disk array and run the Transition function e Type choose spare type e Global Can be used by any disk array e Dedicated to a disk array Click the radio button next to the disk array to which this spare drive is dedicated e Media Type If you have more than one type of physical drive installed SSD and HDD for example choose the type of drive for the spare 4 Inthe Create Spare Drive diagram click a drive to choose
13. and Logical Drive with the Wizard on page 59 and Creating a Logical Drive Manually on page 74 INITIALIZATION Initialization is done to logical drives after they are created from a disk array Full initialization sets all data bits in the logical drive to a specified pattern such as all zeros The action is useful because there may be residual data on the logical drives left behind from earlier configurations For this reason Initialization is recommended for all new logical drives See Initializing a Logical Drive on page 77 107 Pegasus2 R4 R6 R8 Product Manual FORMATTING LOGICAL DRIVES ARAID logical drive must also be formatted to be compatible with your computer In this Product Manual the term format includes both partition and format operations You can format your logical drives using the e PROMISE Utility with default settings below e PROMISE Utility with Custom Settings page 90 e Disk Utility page 91 Both the PROMISE Utility and the computer s disk utility offer a choice of formatting options However if there is no specific reason to customize the default format settings are recommended PROMISE UTILITY DEFAULT SETTINGS Wizard Automatic or Express When you create your logical drives using the Wizard Automatic or Express options your logical drives are always formatted automatically When the PROMISE Utility has finished the format operation new removable drive icons each represen
14. are adjustable under Making PDM Settings on page 45 Pegasus2 R4 R6 R8 Product Manual Viewine Puysicat Drive Statistics view physical drive statistics 1 2 3 Click the Physical Drive icon Mouse over the physical drive you want then click the View button Click the Statistics tab Physical drive statistics include Data Transferred Read Data Transferred Write Data Transferred Errors Number of errors Non Read Write Errors Read Errors Write Errors Request Number of requests Non Read Write Request Number of requests Read I O Request Number of requests Write Request Number of requests Statistics Start Time Time and date Statistics Collection Time Time and date To clear physical drive statistics see Clearing Statistics on page 21 4 Click the X icon to close the settings panel 50 Promise Technologies Viewine Physical Drive SMART Loa INFORMATION To view physical drive SMART Log information 1 Click the Physical Drive icon 2 Mouse over the physical drive you want then click the View button 3 Click the SMART Log tab SMART Log information includes e Physical Drive ID e SMART Support Yes or No depending on the drive e SMART Status Enabled or disabled e SMART Health Status OK is normal Items with an asterisk are adjustable under Making Controller Settings on page 31 4 Click the X icon to close the settin
15. choose Day of the Month option or a sequential and specific day from the dropdown menu Also choose which months e Choose a Start From date from the dropdown menus e Choose End On option e No end date or perpetual e End after a specific number of activity actions e Until date from the dropdown menus e For Redundancy Check choose e Auto Fix option Attempts to repair the problem when it finds an error Check to enable e Pause on Error option The process stops when it finds a non repairable error Check to enable e Select LD Check the boxes for the logical drives to run Redundancy Check Check at least one logical drive 5 Click the Save button To return to currently running background activities click the Background Activities button 38 Promise Technologies CHANGING A BACKGROUND Activity SCHEDULE To change an existing scheduled background activity 1 2 5 Click on the Background Activities icon Click the Scheduler button The list of scheduled background appears Mouse over the background activity then click the Settings button Make settings as needed Choose the option for the activity you want e Media Patrol e Redundancy Check e Spare Check Choose a Start Time from the dropdown menus The menus have a 24 hour clock Choose a Recurrence Pattern option daily weekly or monthly e For the Daily option enter an interval in the Every field e For the Weekly optio
16. drive you want then click the View button 71 Pegasus2 R4 R6 R8 Product Manual Logical Drive information displays including Logical Drive ID LDO LD1 etc Alias If assigned Array ID ID number of the disk array where this logical drive was created RAID Level Set when the logical drive was created Operational Status OK Critical or Offline Capacity Data capacity of the logical drive Number of Axles For RAID 10 2 axles Physical Capacity Data capacity of the physical drives Number of Physical Drives The number of physical drives in the disk array Stripe size Set at logical drive creation Read Policy ReadCache ReadAhead or None Sector size Set at logical drive creation Click the X icon to close the information panel Viewine LoaicAL Drive STATISTICS To view logical drive statistics 1 Do one of the following actions e Click the Logical Drive icon Write Policy WriteThru or WriteBack Current Write Policy May change from WriteBack to WriteThru under certain conditions Preferred Controller ID Not applicable Tolerable Number of Dead Drives Per Axle Number of physical drives that can fail without the logical drive going offline Synchronized A new logical drive shows No until synchronizing is completed See on page 46 Parity Pace Pertains to some RAID levels WWN Worldwide Number a unique identifier as
17. error in this publication and for damages whether direct indirect incidental consequential or otherwise that may result from such error including but not limited to loss of data or profits PROMISE Technology provides this publication as is without warranty of any kind either express or implied including but not limited to implied warranties of merchantability or fitness for a particular purpose The published information in the manual is subject to change without notice PROMISE Technology reserves the right to make changes in the product design layout and driver revisions without notification to its users This version of this document supersedes all previous versions Recommendations In this Product Manual the appearance of products made by other companies including but not limited to software serv ers and disk drives is for the purpose of illustration and explanation only PROMISE Technology does not recommend endorse prefer or support any product made by another manufacturer Promise Technologies ABOUT THIS GUIDE This Product Manual describes how to setup use and maintain the Pegasus2 R8 R6 and R4 unit It also describes how to use the PROMISE Utility software that you install and run on your Macintosh computer Although this manual is written specifically for the Pegasus2 models many of the functions and descriptions can be applied to the original release of Pegasus Pegasus R4 and Pegasus R6 Pegasus2 is op
18. no unused space add 1 or more physical drives Add physical drives in multiples of two Even number of physical drives 6 physical drives minimum 8 physical drives minimum When you migrate RAID 10 logical drive it becomes RAID 1E by default If you want a RAID 10 logical drive there must be an even number of physical drives and you must specify RAID 10 for the target logical drive See Migrating a Logical Drive on page 79 104 Promise Technologies RAID 50 A RAID 50 Source logical drive can migrate to the following Target logical drives RAID o See Migrating a Logical Drive on page 79 RAID 60 A RAID 60 Source logical drive can migrate to the following Target logical drives Target Requirements See Migrating a Logical Drive on page 79 105 Pegasus2 R4 R6 R8 Product Manual STRIPE SIZE Stripe Size also called Stripe Block Size refers to the size of the data blocks written to and read from the physical drives Stripe Size is specified when you create a logical drive You can choose Stripe Size directly when you use the Wizard Advanced Configuration function to create a logical drive You cannot change the Stripe Size of an existing logical drive You must delete the logical drive and create a new one The default stripe size is 128 KB When you create your logical drive using the Wizard Advanced option or you create a logical drive manually you can choose a stripe size of 64 K
19. on page 82 Also see Disk Array Degraded Logical Drive Critical on page 129 and Disk Array Offline Logical Drive Offline on page 130 43 Pegasus2 R4 R6 R8 Product Manual REBUILD SETTINGS 1 on the Background Activities icon 2 Click the Settings button 3 Click the Rebuild Rate dropdown menu and choose a rate e Low Fewer system resources to the Rebuild more to data read write operations Medium Balances system resources between the Rebuild and data read write operations e High More system resources to the Rebuild fewer to data read write operations 4 Check the Enable Auto Rebuild box to enable Auto Rebuild rebuilds when you swap out the failed drive with a new one o Click the Confirm button 6 Click the X icon to close the background activities panel MiGRATION The term Migration means either or both of the following e Change the RAID level of a logical drive e Expand the storage capacity of a logical drive See Migrating a Logical Drive on page 79 MAKING MIGRATION SETTINGS To make migration settings E 2 Click on the Background Activities icon Click the Settings button Click the Migration Rate dropdown menu and choose a rate e Fewer system resources to Migration more to data read write operations Medium Balances system resources between Migration and data read write operations e High More system resources to Migration f
20. physical drive However replacing with the same make and model of drive makes the process easier and simpler You can replace a physical drive without shutting down the Pegasus unit 125 Pegasus2 R4 R6 R8 Product Manual To replace a physical drive 1 Press the release button to unlock the drive carrier PROMISI WOOL Wn The drive carrier handle swings out 2 Grasp the handle and gently pull the drive carrier out of the Pegasus unit and place it onto a static free surface 126 Promise Technologies 3 Remove the four mounting screws then slide the failed drive out of the carrier Mounting screw Physical drive Mounting screw Mounting screw Mounting screw Drive carrier handle 4 Place the replacement drive into the carrier then install the four mounting screws Tighten the screws just until they are snug Position the drive carrier handle in outward position and slide the drive carrier back into the Pegasus unit 5 Press the drive carrier handle inward until it locks 127 Pegasus2 R4 R6 R8 Product Manual PuvsicAL Drive WARNING MESSAGE If you see messages that says HDD from the backplane you must reseat the physical drives To reseat the physical drives 1 On the Pegasus unit press and hold the Power Button LED until it turns red 2 Wait until the Power Button LED goes dark 3 For each drive carrier press the Release button pull the drive carrier part wa
21. physical drives minimum See Migrating a Logical Drive on page 79 RAID 0 A RAID 0 source logical drive can migrate to the following target logical drives Add physical drives RAIDa 2 physical drives only Only a single drive RAID o can migrate to RAID 1 by adding 1 physical drive RAID 3E 30r more physical drives If existing physical drives have no unused space add 1 or more physical drives RAID 5 3 physical drives minimum maximum 6 R6 or 8 R8 RAID o must have less than 4 R4 6 R6 or 8 R8 physical drives If existing physical drives have no unused space add 1 or more physical drives RAID6 4 physical drives minimum 4 6 R6 or 8 R8 If existing physical drives have no unused space add 1 or more physical drives RAID 10 4 physical drives minimum Even number of physical drives If existing physical drives have no unused space add 1 or more physical drives 6 physical drives minimum 8 physical drives minimum See Migrating a Logical Drive on page 79 102 Promise Technologies RAID 1E A RAID 1E Source logical drive can migrate to the following Target logical drives Add physical drives RAID 5 3physical drives minimum 4 R4 6 R6 or 8 R8 RAID 1E must have less than 4 R4 6 R6 or 8 R8 physical drives If existing physical drives have no unused space add 1 or more physical drives RAID 10 4 physical drives minimum Even number of physica
22. that form the logical drive Identical drives are recommended for performance as well as data storage efficiency RAID 0 Striping interleaves data across multiple drives Data Stripe gt Physical Drives 91 Pegasus2 R4 R6 R8 Product Manual The disk array s data capacity is equal to the number of disk drive members multiplied by the smallest drive s capacity For example one 100 GB and three 120 GB drives form a 400 GB 4 x 100 GB disk array instead of 460 GB If physical drives of different capacities are used there is unused capacity on the larger drives RAID 0 logical drives on Pegasus consist of one or more physical drives Advantages Disadvantages Implements a striped disk array the data is Not a true RAID because it is not fault tolerant broken down into blocks and each block is l j l j l The failure of just one drive results in all data in an written to a separate disk drive l l disk array being lost I O performance is greatly improved EE i Do not in mission critical environments by spreading the I O load across many channels and drives No parity calculation overhead is involved Recommended Applications for RAID 0 Image Editing e Pre Press Applications e Any application requiring high bandwidth 92 Promise Technologies RAID 1 MiRROR When a logical drive is mirrored identical data is written to a pair of physical drives while reads are performed in parallel The reads are per
23. the Eject option Launch the PROMISE Utility and click on the Subsystem Information menu button at the top of the interface unlock the user interface see Unlocking the UI on page 15 click on the Shutdown button then click on Shutdown in the new menu that appears You will need to type confirm in the pop up menu and click on the Confirm button Alternatively you can press and hold the Power Button until the Power LED on the button turns orange When you release the Power Button the LED goes dark 13 Pegasus2 R4 R6 R8 Product Manual Daisy CHAINING MurriPLE Pecasus Pecasus2 Units Up to 6 Pegasus or Pegasus2 devices can be connected to each other and to your Mac in a daisy chain sequential Thunderbolt connection To daisy chain multiple Pegasus and or Pegasus2 units 1 Connect a Thunderbolt cable from one of the Thunderbolt ports on the back of your Mac computer to one of the Thunderbolt ports on the first Pegasus Pegasus2 unit 2 Connect a second Thunderbolt cable from other Thunderbolt port on the first Pegasus Pegasus2 unit to one of the Thunderbolt ports on the second Pegasus Pegasus2 unit Thunderbolt daisy chain connections iMac used for this example any Mac with a Thunderbolt port can be used Thunderbolt port Thunderbolt ports Thunderbolt ports Pegasus R4 Pegasus2 R4 2 NS WW Wyle x 14 Promise Technologies UNLOCKING THE Ul By default the UI is locked to prevent unauthorize
24. the field provided and click the Confirm button Note You must unlock the PROMISE Utility interface to allow selection of Restore Factory Default SAVING A SERVICE REPORT A service report can be useful to technical support for troubleshooting or diagnosing issues on the device To save a service report to your Mac click on the Subsystem Information menu link and click on the Save Service Report button A prompt asks you where you want to save the html file containing the service report Choose a location and click the Save button A technical support representative might ask you to email this file for system analysis 27 Pegasus2 R4 R6 R8 Product Manual UPDATING FIRMWARE For best performance it is a good idea to keep the Pegasus2 firmware up to date The update procedure is used for the controller and other system hardware Download the latest firmware from the PROMISE website at www PROMISE com support download aspx and place the img file on your Mac Keep in mind that after the update process it will be necessary to restart your Mac To update the controller firmware 1 From the Admin drop down menu the menu bar at the top of your desktop choose Firmware Update m Pegas a LA Dashboard Wizard Physical Drive Disk Array Logical Drive Subsystem Information Events Background Activities y S gt A Firmware Update Warning 1 Please do not navigate to any other screen until the Firmw
25. troubleshooting For more information on using the PROMISE Utility including instructions on how to use the Wizard menus to install a different RAID array configuration please read Manage with PROMISE Utility on page 17 12 Promise Technologies POWER MODES ON THE PEGASUS2 The Pegasus2 introduces new power saving and response features These are described below The automatic power features are Sleep When your Mac computer goes to sleep the Pegasus2 unit automatically shuts down after all background activities are finished Wake When your Mac computer wakes the Pegasus2 unit automatically powers on Shutdown When your Mac computer shuts down the Pegasus2 unit automatically shuts down Restart After Shutdown When your Mac computer powers up the Pegasus2 unit automatically powers up Spin down HDD The Pegasus2 includes a power saving feature that spins down the hard disk drives if the logical drive is idle for 30 minutes This can be enabled or disabled and the idle time can be changed in the PROMISE Utility Click on the Controller link in the Dashboard then click the Settings button to see how to change this setting SHUTTING DOWN THE PEGASUS2 The shuts down automatically if you turn off your Mac If you want to turn off the Pegasus2 without shutting down your computer follow the steps below To shut down the Pegasus2 unit 1 2 Eject the Pegasus2 by right clicking on the drive icon and choosing
26. 2 R4 R6 R8 Product Manual TROUBLESHOOTING This chapter deals problems you might encounter with your Pegasus unit and how to resolve them e Responding to an Audible Alarm below e Checking LEDs PROMISE Utility e Viewing the Event Logs e Physical Drive Problems e Disk Array and Logical Drive Problems e Subsystem Problems e Connection Problems RESPONDING TO AN AUDIBLE ALARM The Pegasus unit has two beep patterns e Two beeps not repeated The Pegasus is powering up or ready e Two beeps continuously repeated The Pegasus reports a problem When you boot Pegasus unit the buzzer beeps twice to acknowledge power up and twice again when the unit is online and ready for work If you hear the repeating two beep pattern check the following items e System Status LED e Drive Carrier LEDs 118 Promise Technologies CHECKING LEDs When you boot Pegasus unit the Power Button LED turns orange When fully booted the LED turns blue See page 102 Figure 1 oee Subsystem LEDs on page 102 The drive carrier Power Status LEDs turn blue if a physical drive is installed See Drive Carrier LEDs on page 103 SuBsyYsTEM LEDs The Pegasus subsystem LEDs are the Power Button and the Thunderbolt ports Power Button Thunderbolt LEDs Subsystem LEDs as R4 Power Button Status LED 8 PROMISE TECHNOLOGY INC Thunderbolt link LEDs Right ____ Mae Left
27. AULT SETTINGS PROMISE UriLiTY with Custom SETTINGS Disk Utitity 110 SPARE Drives 111 DEFINITION 111 OPTIONS 111 REQUIREMENTS 112 TRANSITION 112 RUNNING A TRANSITION RAID Conrrotters 116 READ CACHE POLICY WRITE CACHE Policy Capacity COERCION 108 112 116 116 117 88 94 97 101 96 98 108 109 TROUBLESHOOTING 118 RESPONDING TO AN AupDIBLE ALARM 118 6 LEDs 119 SussysTEM LEDs Drive CARRIER LEDs PROMISE 119 120 121 ViEWING THE Event Locs 121 ViEWING Runtime Events 121 ViEWING NVRAM Events 122 Event SEVERITY DESCRIPTIONS Puysicat Drive PROBLEMS DIAGNOSIS USING THE PROMISE UriLiTv 123 LOCATING A DRIVE REPLACING A PHysicAL DRIVE 122 124 125 PuvsicAL DRIVE WARNING MESSAGE 128 Disk Array AND LocicaL Drive PRoBLEMs 129 123 Disk Array DeGRaADED LoaIcAL Drive CRITICAL Disk ARRAY OFFLINE LocicaL Drive OFFLINE 130 REPAIRING AN OFFLINE Disk ARRAY OR LOGICAL DRIVE REBUILDING A Disk ARRAY INCOMPLETE ARRAY MIGRATION 132 TRANSPORT 132 132 UNREADABLE Disk WARNING SuBSYSTEM PROBLEMS DIAGNOSING A SUBSYSTEM PROBLEM 134 OVERHEATING 135 FAN FAiLuRE 135 134 INADEQUATE AIR CIRCULATION Power Supply 136 CONNECTION PROBLEMS CABLES 137 Daisv CHAINS 138 PERFORMANCE Monitor 137 139 131 133 136 Contents 129 130 Contents CONTACTING TECHNICAL SUPPORT 140 LiMiTED WARRANTY 144
28. As shipped with all 3 5 HDD installed R8 6 4 kg R6 5 25 kg R4 4 3 kg Weight Safety UL CSA CE TUV EMI CB EMC FCC CE EMC VCCI PSE BSMI C tick RCM Environmental EuP Directive ROHS WEEE Safety CB UL cUL CE LVD PSE BSMI RCM Certification Pegasus2 R4 R6 R8 Product Manual HARDWARE This section provides a brief introduction to the external hardware of the Pegasus2 R4 R6 and R8 The R6 and 8 are taller since they have more hard disk carriers For the purpose of installation they are nearly identical Pegasus2 R4 front view Power Button System Status LED s R4 Drive Carrier PROMISE TECHNOLOGY INC Thunderbolt Link LEDs DriveStatus LED Drive Activity LED LED Description System Status The System Status LED located on the Power button lights blue when the Pegasus2 is operating normally When the system is booting up this lights orange and will light blue when fully booted if there are no problems detected A red System Status LED indicates a serious problem such as an incomplete array or failed hard disk drive Thunderbolt Link These light blue when the Thunderbolt cable is connected they remain dark when there is no link Drive Status and The Drive Status LED lights blue when a physical drive is present and functioning Activity normally A red Drive Status LED indicates a problem with the physical drive or an array The Drive Activity LED lights blue when the physi
29. B 128 KB 256 KB 512 KB and 1 MB oee Creating a Disk Array and Logical Drive with the Wizard on page 59 and Creating a Logical Drive Manually on page 74 There are two issues to consider when choosing the Stripe Size You should choose a Stripe Size equal to or smaller than the smallest cache buffer found on any physical drive in the disk array Selecting a larger value slows read write performance because physical drives with smaller cache buffers need more time for multiple accesses to fill their buffers e If your data retrieval consists of fixed data blocks such as with some database or video applications then you should choose that size as your Stripe Size If you do not know the cache buffer or fixed data block sizes choose 64 KB as your Stripe Size Generally speaking e Email POS and web servers prefer smaller stripe sizes e Video and database applications prefer larger stripe sizes 106 Promise Technologies SECTOR SIZE sector is the smallest addressable area on a physical drive Sector size refers to the number of data bytes a sector can hold A smaller sector size is a more efficient use of a physical drive s capacity 512 bytes 512 B is the most common sector size and the default in the PROMISE Utility When you create your logical drive using the Wizard Advanced option or you create a logical drive manually you can choose a sector size of 512 B 1 KB 2 KB or 4 KB oee Creating a Disk Array
30. CH1 SATA HDD Slot 1 ArrayO No 0 2 TB View Locate Settings Clear Force Offline 2 HDS728080PLA380 SATA HDD Slot 2 Arrayl No 0 2 TB View Locate Settings Clear Force Offline 3 Hitachi HDS72168 SATA HDD Slot 3 1 No 1 2 TB View Locate Settings Clear Force Offline 4 HDS728080PLA380 SATA HDD Slot 4 Arrayl No 2 2 TB View ocate Settings Clear Force Offline 5 WDC WD1001FALS 0 SATA HDD Slot 5 PassThru 2 TB View Settings Clear Force Offline 6 WDC WD2002FYPS 0 SATA HDD Slot 6 Global Spare 2 TB View Locate Settings Clear Force Offline 6 The Pass Through drive also appears on the desktop It is now ready for use m Macin h HD DORT ESI Mac 149 Pegasus2 R4 R6 R8 Product Manual APPENDIX B Important Information HARD Drive COMPATIBILITY To view or download the most up to date list of compatible physical drives for Pegaus2 follow these steps 1 Goto PROMISE Support Download Center 2 Use the pull down menus near the bottom of the page to locate Pegasus2 and then the model R8 R6 R4 3 Click on Compatibility to see links for the compatibility list and click on the latest version to view the PDF file PROMISE Download Center web page PROMISE eE TECHNOLOGY INC Global English BSearch Products GO Products Solutions Partners PromiseLink Where to Buy Newsroom About PROMISE Home Support Downloa
31. D MIRROR RAID 1E offers the security of mirrored data provided by RAID 1 plus the added capacity of more than two physical drives It also offers overall increased read write performance plus the flexibility of using an odd number of physical drives With RAID 1E each data stripe is mirrored onto two physical drives If one drive fails or has errors the other drives continue to function providing fault tolerance RAID 1E can mirror data over an odd number of drives Enhanced Data Mirrors The advantage of RAID 1E is the ability t hysieaabrivetd number of physical drives unlike RAID 1 and RAID 10 You can also create a RAID 1E Logical Drive with an even number of physical drives However with an even number of drives you obtain somewhat greater security with comparable performance using RAID 10 RAID 1E logical drives consist of three or more physical drives You can create an array with just two physical drives and specify RAID 1E But the resulting array is actually a RAID 1 94 Promise Technologies Advantages Disadvantages Implemented as a mirrored disk array whose e Very high disk overhead uses only 50 of segments are RAID 0 disk arrays total capacity High I O rates are achieved thanks to multiple stripe segments Can use an odd number of disks Recommended Applications for RAID 1E e Imaging applications e Database servers e General fileserver RAID 5 BLock AND PARITY STRIPE RAID 5 organizes block d
32. GING Spare Drives 82 ViEWING A List or Disk ARRAYs 56 ViEWING A List or SPARE Drives 82 ViewinG Disk ARRAY INFORMATION 57 VIEWING SPARE Drive INFORMATION 83 CREATING A Disk Array MaNuaLLv 58 CREATING A SPARE Drive MANUALLY 84 CREATING A Disk ARRAY AND LoaicaL Drive WITH THE Wizard 59 Making Spare Drive Settings 85 CHOOSING AUTOMATIC CONFIGURATION 60 RUNNING SPARE CHECK 85 CHOOSING EXPRESS CONFIGURATION 61 DELETING A SPARE Drive 86 CHOOSING ADVANCED CONFIGURATION 63 RUNNING A TRANSITION ON A SPARE DRIVE 86 Making Disk Array SETTINGS 65 RUNNING ATRANSITION 87 LocariNG A Disk ARRAY 66 PAUSING AND RESUMING A TRANSITION 87 DELETING A Disk ARRAY 67 STOPPING PAUSING OR RESUMINGA TRANSITION 87 PREPARING A Disk ARRAY FOR TRANSPORT 67 REBUILDING A Disk ARRAY 68 PERFORMING A MANUAL REBUILD 68 PAUSING AND RESUMINGA REBUILD 69 STOPPING A REBUILD 69 Pegasus2 R4 R6 R8 Product Manual TEcHNOLOGY BACKGROUND Disk AnnAYs 89 Menia PATROL 89 PDM 90 LocicaL Drives 91 RAID Levers 91 RAID 0 STRIPE RAID 1 MIRROR 91 93 RAID 1E ENHANCED MIRROR RAID 5 BLock AND PARITY STRIPE 95 RAID 6 BLock AND DouBLE PARITY STRIPE RAID 10 Mirror STRIPE RAID 50 STRIPING OF DISTRIBUTED PARITY RAID 60 DousaLE Parity STRIPE 100 RAID LeveL Migration 101 MIGRATION REQUIREMENTS 101 SouRCE AND TARGET RAID LEVvELs STRIPE SIZE 106 Sector Size 107 INITIALIZATION 107 Formartine Locicat Drives PROMISE UriLiTY with DEF
33. N THE Pegasus2 13 SHUTTING DOWN THE PEGASUS2 13 Daisy CHAINING PEGAsus PEGAsus2 Units 14 UNLOCKING THE UI 15 DisPLAYiNG PEGASUS PEGAsUS2 Units 15 To CREATE A Disk ARRAY AND LoaicAL DRivE 16 MANAGE with PROMISE UriLiTv 17 Accessine THE PROMISE Uriumy 18 OPENING 18 CLOSING 18 UNLOCKING THE UI 19 PERUSING THE PROMISE UriLirv INTERFACE 20 TOOLBAR Icons 21 CUSTOMIZING THE TOOLBAR2 1 Device MENUS 22 COMPONENT LIST 22 PuvsicaL DRIVE MENU 22 FRONT View 23 Back View 24 MANAGING SUBSYSTEMS 25 VIEWING SUBSYSTEM INFORMATION 25 MAKING SUBSYSTEM SETTINGS 26 CLEARING STATISTICS 26 RESTORING Factory DEFAULT SETTINGS 27 SAVING A SERVICE REPORT27 UPDATING FIRMWARE 28 Mawnacine THE RAID CONTROLLER 29 VIEWING CONTROLLER INFORMATION 29 VIEWING CONTROLLER Statistics 30 MakiNG CONTROLLER SETTINGS 31 Buzzer SETTINGS 32 Making FAN Settings 32 Managing ENCLOSURES 33 ViEWING THE ENCLOSURE INFORMATION 33 VIEWING TEMPERATURE SENSOR INFORMATION 34 LOCATING AN ENCLOSURE 35 MANAGING BACKGROUND Activities 36 ViEWiNG Current BACKGROUND Activities 37 ViEWING SCHEDULED BACKGROUND Activities 37 ADDING A SCHEDULED BACKGROUND Activity 37 CHANGING A BACKGROUND Activity SCHEDULE39 ENABLING OR DISABLING A SCHEDULED BACKGROUND ACTIVITY 40 DELETING A SCHEDULED BACKGROUND ACTIVITY 40 Menia Patrol 41 MakiNG MEDIA PATROL SETTINGS 41 REDUNDANCY CHECK 42 MAKING REDUNDANCY CHECK SETTINGS 42 I
34. NITIALIZATION 42 MAKING INITIALIZATION SETTINGS 43 REBUILD 43 Making REBUILD SETTINGS 44 Contents Promise Technologies Migration 44 ManacineLocicat Drives 70 MAKING MIGRATION SETTINGS 44 ViEWING A List or Loaicat Drives 71 PDM 45 ViEWiNG LOGICAL Drive INFORMATION 71 Making Settings 45 Viewine Loaicat Drive Statistics 72 TRANSITION 46 Making Locicat Drive SETTINGS 73 MAKING TRANSITION SETTINGS 46 ViewinG LoaicAL Drive CHEcK TABLES 74 SYNCHRONIZATION 47 CREATING A LocicAL Drive MANUALLY 74 MAKING SYNCHRONIZATION SETTINGS 47 FoRMATTING Your LocicaL Drives 76 Managing Puvsicat Drives 48 LocariNG A Loaicat Drive 76 ViEWING A List or Physical Drives 48 DELETING LocicAL DRIVE 77 Viewine Physical Drive INFORMATION 49 INITIALIZING A LocicAL DRIVE 77 ViewinG Physical Drive Statistics 50 PAUSING AND RESUMING AN INITIALIZATION 78 ViewinG Physical Drive SMART Loc Information 51 STOPPING AN INITIALIZATION 78 LocariNG A Physical Drive 51 REDUNDANCY CHECK ON A LoGIcAL DRIVE 78 Making GLosBat Physical Drive Settings 52 PAUSING AND RESUMING REDUNDANCY CHECK 79 Making INDIVIDUAL Physical Drive Settings 52 STOPPING A REDUNDANCY CHECK 79 Making Physical Drive SMART Loe SETTINGS 53 MIGRATING A Drive 79 CLEARING A STALE OR A PFA ConpirioN 53 Running on A Loaicat Drive 81 ForcinG Physical Drive OFFLine 54 PausiNG AND REsuMING 81 RuNNiNG MEDIA PATROL ON YOUR PHYSICAL DRIVES 59 SroPPING 81 Managing Disk Arrays 56 MANA
35. PEGASUSZ RG R4 R8 Product Manual Version 2 0 Pegasus2 R4 R6 R8 Product Manual Copyright 2013 PROMISE Technology Inc All Rights Reserved PROMISE the PROMISE logo VTrak Pegasus SmartStor SuperTrak FastTrak VessRAID Vess PerfectPATH PerfectRAID SATA150 ULTRA133 VTrak S3000 BackTrak Hyper Cache HyperCache R HyperCache W DeltaScan and GreenRAID are registered or pending trademarks of PROMISE Technology Inc in the U S and other countries All other trademarks are the property of their respective owners Informa tion regarding products services and offerings may be superseded by subsequent documents and are subject to change without notice For the latest information and specifications regarding PROMISE Technology Inc and any of its offerings or services please contact your local PROMISE office or the corporate headquarters Visit www PROMISE com for more information on PROMISE products Important data protection information You should back up all data before installing any drive controller or storage peripheral PROMISE Technology is not re sponsible for any loss of data resulting from the use disuse or misuse of this or any other PROMISE Technology product Notice Although PROMISE Technology has attempted to ensure the accuracy of the content of this document it is possible that this document may contain technical inaccuracies typographical or other errors PROMISE Technology assumes no liability for any
36. PROMISE com 143 Promise Technologies Pegasus2 R4 R6 R8 Product Manual LIMITED WARRANTY PROMISE Technology Inc PROMISE warrants that this product from the time of the delivery of the product to the original end user a all components for a period of two 2 years b will conform to PROMISE s specifications C will be free from defects in material and workmanship under normal use and service This warranty a applies only to products which are new and in cartons on the date of purchase b is not transferable C is valid only when accompanied by a copy of the original purchase invoice d Is not valid on spare parts This warranty shall not apply to defects resulting from a improper or inadequate maintenance or unauthorized modification s performed by the end user b operation outside the environmental specifications for the product C accident misuse negligence misapplication abuse natural or personal disaster or maintenance by anyone other than a PROMISE or a PROMISE authorized service center 144 Promise Technologies DISCLAIMER OF OTHER WARRANTIES This warranty covers only parts and labor and excludes coverage on software items as expressly set above Except as expressly set forth above PROMISE disclaims any warranties expressed or implied by statute or otherwise regarding the product including without limitation any warranties for fitness for any purpose quality merchantabilit
37. RIVES Logical drive management includes e Viewing a List of Logical Drives e Viewing Logical Drive Information Viewing Logical Drive Statistics e Making Logical Drive Settings e Viewing Logical Drive Check Tables e Creating a Logical Drive Manually e Formatting Your Logical Drives e Locating a Logical Drive e Deleting a Logical Drive e Initializing a Logical Drive e Redundancy Check on a Logical Drive Migrating a Logical Drive e Running on a Logical Drive 70 Promise Technologies ViEWING A List or Loaicat DRIVES To view a list of logical drives do one of the following actions e Click the Logical Drive icon e From the Storage menu choose Logical Drive The list of logical drives appears Logical drive information includes e 10 100 LD1 etc e Stripe Set when the logical drive was created Alias If assigned e Cache Policy Read cache and Write cache Status Normal Critical or Offline icon Seng Capacity Data capacity of the logical drive Array ID number of the disk array where this logical drive was created e RAID Level Set when the logical drive was created ViewinG Locicat Drive INFORMATION To view logical drive information 1 Doone of the following actions e Click the Logical Drive icon e From the Storage menu choose Logical Drive The list of logical drives appears 2 Mouse over the logical
38. Read I O Requests Statistics Start date and time Promise Technologies MAKING CONTROLLER SETTINGS To make controller settings 1 2 From the Device menu choose Component List Mouse over the controller then click the Settings button Make setting changes as required Enter change or delete the alias in the Alias field SMART Log Check the box to enable or uncheck to disable SMART Polling Interval Enter a value into the field 1 to 1440 minutes 1440 minutes 24 hours Enable Coercion Check the box to enable or uncheck to disable Coercion Method Choose a method from the dropdown menu e GBTruncate e TOGBTruncate e GrpRounding e TableRounding Write Back Cache Flush Interval Enter a value into the field 1 to 12 seconds Enclosure Polling Interval 15 to 255 seconds Adaptive Writeback Cache Check the box to enable or uncheck to disable Forced Read Ahead Check the box to enable or uncheck to disable Click the Save button Click the X icon to close the settings panel 3l Pegasus2 R4 R6 R8 Product Manual Making Buzzer SETTINGS To make buzzer settings 1 From the Device menu choose Component List 2 Mouse over the buzzer then click the Settings button 3 Check the Enable Buzzer box to enable the buzzer Or uncheck the box to disable 4 Click the Save button MAKING FAN SETTINGS To make fan settings 1 From the Device menu choose Component List 2 Find F
39. Setting options for each activity are listed after the scheduling options These settings determine how the background activity affects I O performance 36 Promise Technologies ViEWiNG Current BACKGROUND AcriviTiES To view a list of background activities click on the Background Activities icon The list of background appears e Media Patrol e e Redundancy Check e Transition e Rebuild e Synchronization e Migration Currently running activities show a progress bar VIEWING SCHEDULED BACKGROUND ACTIVITIES To view a list of scheduled background activities 1 Click on the Background Activities icon 2 Click the Scheduler button The list of scheduled background appears ADDING A SCHEDULED BACKGROUND AcriviTY To add a new scheduled background activity 1 Click on the Background Activities icon 2 Click the Scheduler button The list of scheduled background appears 3 Click the Add Schedule button 4 Make schedule settings as desired 37 Pegasus2 R4 R6 R8 Product Manual Choose the option for the activity you want e Media Patrol e Redundancy Check e Spare Check Choose a Start Time from the dropdown menus The menus have a 24 hour clock e Choose a Recurrence Pattern option daily weekly or monthly e For the Daily option enter an interval in the Every field e For the Weekly option enter an interval the Every field and choose one or more days of the week e For the Monthly option
40. a or mirroring PROMISE implements RAID 10 by creating a data stripe over one pair of disk drives then mirroring the stripe over a second pair of disk drives Some applications refer to this method as RAID 0 1 PROMISE RAID 10 starts with a data stripe then mirrors it 1 Data Stripe 2 Data Mirror Disk Drives 97 Pegasus2 R4 R6 R8 Product Manual The data capacity RAID 10 logical drive equals the capacity of the smallest physical drive times the number of physical drives divided by two In some cases RAID 10 offers double fault tolerance depending on which physical drives fail RAID 10 arrays require an even number of physical drives and a minimum of four For RAID 10 characteristics using an odd number of physical drives choose RAID 1E Advantages Disadvantages e Implemented as a mirrored disk e Very high disk overhead uses only array whose segments are RAID O 50 of total capacity disk arrays High I O rates are achieved thanks to multiple stripe segments Recommended Applications for RAID 10 e Imaging applications e Database servers e General fileserver RAID 50 STRIPING OF DISTRIBUTED PARITY RAID 50 combines both RAID 5 and RAID 0 features Data is striped across physical drives as in RAID 0 and it uses distributed parity as in RAID 5 RAID 50 provides data reliability good overall performance and supports larger volume sizes The data capacity RAID 50 logical drive equals the capacity o
41. age disk types are supported on the Pegasus2 e 2 5 inch and 3 5 inch SATA hard disk drives e 2 5 inch SSD e 2 5 inch and 3 5 inch Hybrid HDD The Pegasus is available in three form factors that differ in the number of drives that can be installed Total capacity depends on the size of the HDD shipped with the unit The Pegasus2 R4 is shipped with four HDD The Pegasus2 R6 is shipped with six HDD The Pegasus2 R8 is shipped with eight HDD In addition Pegasus2 enclosures can be connected or daisy chained to other Pegasus2 or Pegasus units to scale up the available storage capacity Power supply 250W Flex ATA Power with 80 Plus Bronze with PFC 100 230V auto ranging 50 60Hz AC System Fan Pegasus2 R4 R6 Dimension 92 W x 92 H x 25 D mm Airflow 70 CFM Pegasus2 R8 Dimension 120 W x 120 H x 25 8 D mm Airflow 97 CFM RAID level support RAID 0 1 1E 5 6 10 and RAID 50 Pegasus2 R6 R8 only RAID 60 Pegasus2 R8 only OS Support Mac OS X 10 8 or higher MacBook Pro iMac MacBook Air Mac Mini Hardware Fan Temperature Power Enclosure Physical drives Logical drives RAID controller monitorinc C Temperature Operating 5 35 Non operating 40 70 C Humidity Operating 10 95 non condensing Storage 5 95 non condensing R8 315 x 187 x 235 mm 12 6 x 7 4 x 9 3 in R6 250 x 187 x 235 mm 9 8 x 7 4 x 9 3 in R4 195 x 187 x 235 mm 7 7 x 7 4 x 9 3 in Capacity RAID function
42. al Drive on page 77 42 Promise Technologies MAKING INITIALIZATION SETTINGS To make initialization settings 1 Click on the Background Activities icon 2 Click the Settings button 3 Click the Logical Drive Initialization Rate dropdown menu and choose rate e Low Fewer system resources to Initialization more to data read write operations e Medium Balances system resources between Initialization and data read write operations e High More system resources to Initialization fewer to data read write operations 4 Click the Confirm button 5 Click the X icon to close the background activities panel REBUILD When you rebuild a disk array you are actually rebuilding the data on one physical drive e When a physical drive in a disk array fails and a spare drive of adequate capacity is available the disk array begins to rebuild automatically using the spare drive e If there is no spare drive of adequate capacity but the Auto Rebuild function is ENABLED the disk array begins to rebuild automatically as soon as you remove the failed physical drive and install an unconfigured physical drive in the same slot See Making Rebuild Settings on page 34 e If there is no spare drive of adequate capacity and the Auto Rebuild function is DISABLED you must replace the failed drive with an unconfigured physical drive then perform a Manual Rebuild oee Rebuilding a Disk Array on page 68 and Managing Spare Drives
43. ame as controller alias e Model WWN World Wide Number e Vendor e Serial number e Revision number e System date and time e Firmware Version Items with an asterisk are adjustable under Making Subsystem Settings below 25 Pegasus2 R4 R6 R8 Product Manual MAKING SUBSYSTEM SETTINGS To make enclosure settings 1 Click the Subsystem Information icon 2 Click the Settings button 3 changes as required e Enter an alias or change the existing alias in the field provided 4 Click the Save button CLEARING STATISTICS This function clears statistical data on the RAID controller physical drives and logical drives To clear statistics 1 2 Click the Subsystem Information icon Click the Clear Statistics button Type the word confirm in the field provided Click the Confirm button 26 Promise Technologies RESTORING FACTORY DEFAULT SETTINGS This feature restores settings to their default values To restore all settings to their default values 1 From the Admin drop down menu in teh menu bar at the top of your desktop choose Restore Factory Default 2 Inthe Restore Factory Default settings screen check the boxes beside the settings you want to reset to default value e Background activity settings e Controller settings e Physical drive settings e Enclosure settings e Smart Fan setting 3 Click the Submit button 4 n the Confirmation box type the word confirm in
44. an entry then click the Settings button 3 Select the radio button for Manual or Automatic mode to control fan speed If you choose Manual mode you then need to select Low Medium or High for fan speed 4 Click the Save button 32 Promise Technologies MANAGING ENCLOSURES Enclosure management includes the following functions Viewing Subsystem Information e Viewing Temperature Sensor Information e Locating an Enclosure VIEWING THE ENCLOSURE INFORMATION To access enclosure information 1 Click the Dashboard icon then click the Controller link 2 Mouse over the Enclosure then click the View button Enclosure information includes e Enclosure ID e Enclosure Type e Enclosure Warning Temperature Threshold e Enclosure Critical Temperature Threshold e Controller Warning Temperature Threshold e Controller Critical Temperature Threshold e SEP Firmware Version e Max Number of Physical Drive Slots e Number of Controllers e Number of Temperature Sensors e Number of Fans e Number of Voltage Sensors e Number of Power Supply Units 3 Click the X icon to close the information panel 33 Pegasus2 R4 R6 R8 Product Manual VIEWING TEMPERATURE SENSOR INFORMATION To view the status of the temperature sensor 1 Click the Dashboard icon then click the Temperature link 2 Scroll down until you see Temperature Sensors Temperature Sensors information includes ID e Status N
45. are Update operation is complete 2 Make sure your Mac does not go to sleep or get turned off during the upgrade process If unsure check the Energy Saver setting in System Preferences Controller Firmware Update Update firmware Pegasus controller Single Image Version 5 04 0000 15 Single Image Build Date Oct 22 2013 Local Flash File Name Choose File no file selected Next id Click the lock to prevent further changes 2 Click on the padlock icon to unlock the menu and type in the password for your Mac when the prompt appears 3 Click the Choose File button and locate the img file you downloaded from PROMISE 4 Click the Submit button 5 In the Confirmation box type the word confirm in the field provided and click the Confirm button 6 The process will take several seconds When it is completed you will be prompted to restart the Mac Restart your Mac and continue to use the Pegasus2 28 Promise Technologies MANAGING THE RAID CONTROLLER RAID controller management includes e Viewing Controller Information e Viewing Controller Statistics e Making Controller Settings e Making Buzzer Settings e Making Fan Settings VIEWING CONTROLLER INFORMATION To view controller information from the Device menu choose Component List the Information tab is displayed Controller information includes e Controller ID e Alias Same as enclosure alias e Vendor e Model e Op
46. are to the new physical drive e The new physical drive becomes part of the array and the revertible spare drive returns to its original spare status 112 Promise Technologies Transition happens manually when you specify a different unconfigured physical drive to transition move the data from the revertible spare drive oee the example on the following pages Example Following is an example to explain the Transition function 1 2 Array Drives 3 4 5 6 Spare Drive In the example above there is a four drive RAID 5 disk array and a global spare drive Physical drives 1 2 3 and 4 belong to the disk array Physical drive 5 remains unconfigured Physical drive 6 is a revertible spare drive 1 2 3 Failed Drive 4 5 6 Rebuild to Spare If a physical drive fails in a disk array and there is a spare drive of adequate capacity available the controller automatically rebuilds the array using the spare drive In this example physical drive 3 failed and the array is rebuilt using physical drive 6 the revertible spare drive 113 Pegasus2 R4 R6 R8 Product Manual 1 2 Array Drives 3 4 9 6 opare Drive When the rebuild is complete the spare drive has replaced the failed drive In this example failed drive 3 was replaced by spare drive 6 The disk array now consists of physical drives 1 2 4 and 6 There is no spare drive at this moment Even if physical drive 5 is of adequate capacity it
47. ata and parity data across the physical drives Generally RAID Level 5 tends to exhibit lower random write performance due to the heavy workload of parity recalculation for each I O RAID 5 is generally considered to be the most versatile RAID level It works well for file database application and web servers RAID 5 stripes all drives with data and parity information Distributed Parity Data E B Physical Drives The capacity of a RAID 5 logical drive equals the smallest physical drive times the number of physical drives minus one Hence a RAID 5 logical drive with four 100 GB physical drives has a capacity of 300 GB ARAID 5 logical drive with two 120 GB physical drives and one 100 GB physical drive has a capacity of 200 GB RAID 5 is generally considered to be the most versatile RAID level 95 Pegasus2 R4 R6 R8 Product Manual A RAID 5 on Pegasus R4 consists of three or four physical drives A RAID 5 on Pegasus R6 consists of three to six physical drives Advantages Disadvantages High Read data transaction rate e Disk failure has a medium impact on throughput Medium Write data transaction rate Good aggregate transfer rate Most versatile RAID level Recommended Applications for RAID 5 e File and Application servers e WWW E mail and News servers e Intranet servers RAID 6 BLock AND DouBLeE PARITY STRIPE RAID level 6 stores dual parity data is rotated across the physical drives along with t
48. ble error 5 Click the Confirm button PAUSING AND REsuMING A REDUNDANCY CHECK To pause or resume a Redundancy Check 1 Click on the Background Activities icon The list of background activities appears 2 Mouse over Redundancy Check and click the Pause or Resume button STOPPING A REDUNDANCY CHECK To stop is to cancel the Redundancy Check 1 Click on the Background Activities icon The list of background activities appears 2 Mouse over Redundancy Check and click the Stop button 3 Click the Confirm button MIGRATING A LocicaL DRIVE The term Migration means either or both of the following e Change the RAID level of a logical drive e Expand the storage capacity of a logical drive Before you begin a migration examine your current disk array to determine whether e The physical drives in your array can support the target RAID level e There is sufficient capacity to accommodate the target logical drive size 79 Pegasus2 R4 R6 R8 Product Manual If you need to add physical drives to your array be sure there are unassigned physical drives are installed in your RAID system before you begin migration oee RAID Levels on page 91 and RAID Level Migration on page 101 and RAID Level Migration on page 84 To migrate a logical drive 1 10 Click on the Background Activities icon The list of background activities appears Mouse over Migrate and click the Start button In the Select Dis
49. bove e Shut down the Pegasus unit Press and hold the Power Button for a few seconds until the LED turns red The PROMISE Utility displays the message Unable to connect to the device e Wait at least one hour then restart the Pegasus unit Press the Power Button The Pegasus boots within a few seconds Power SUPPLY The power supply used in the Pegasus unit is not field replaceable If there is any problem with the power supply contact Technical Support to make arrangements for a repair See Contacting Technical Support on page 140 136 Promise Technologies CONNECTION PROBLEMS Connection problem troubleshooting includes e Cables e Daisy Chains CABLES While the installation of the cables and components was correct they don t function properly or at all because e Aconnector is dirty or corroded e A connector is loose or damaged e Acable looks OK outside but has an open circuit inside e The wrong cable was used See the Note below Be sure to use approved cables because e They are the proper ones for your system e They are sold in brand new condition Note Mini Display extension cables cannot be used to connect data devices such as Pegasus to Thunderbolt enabled computers Mini Display extension cables can only be used to connect display devices to Pegasus 137 Pegasus2 R4 R6 R8 Product Manual Daisy CHAINS If you have multiple Pegasus units daisy chained together all Pegasu
50. cal drive is present and blinks blue when there is activity on the drive See Checking LEDs on page 119 for more details about using LED indicators for troubleshooting Promise Technologies Note As far as the location of the Thunderbolt ports is concerned the back of the R4 R6 and R8 are identical i e near the top and left of center The power connection is in the lower right corner on both devices Pegasus2 R4 back view 7 Thunderbolt Ports Power Connection Feature Description Thunderbolt Ports Use a Thunderbolt cable to connect the Pegasus2 to a Thunderbolt ready computer This connection completes the physical link it is the path through which the SATA link is established Cooling Vents The cooling vents on the back should be clear and unobstructed to allow proper airflow for disk and system cooling Note that the air intake vents located on the front of the enclosure should also be unobstructed Power Receptacle Use only the power cord shipped with the device to connect the power Insert one end of the power cord into the power receptacle and insert the other end into a suitable power source such as a wall outlet or a power strip Pegasus2 R4 R6 R8 Product Manual INSTALLATION AND SETUP This chapter contains the following topics e Packing List on page 7 e Connect the power cord page 8 e Connect Pegasus2 to your on page 9 e Installing the Software on page 10 e Pow
51. capacity of 512 reassigned blocks and 2048 error blocks See PDM on page 45 You can specify the maximum levels for the reassigned and error blocks in PDM settings When the table fills to a specified value PDM triggers a migration of data from the suspect drive the disk drive with the bad sectors to a replacement physical drive During data migration you have access to your logical drives but they respond more slowly to read write tasks because of the additional operation The time required for data migration depends on the size of the disk drives PDM is enabled on all disk arrays by default You can disable PDM in the disk array settings however that action is not recommended See Making Disk Array Settings on page 65 90 Promise Technologies LogicAL DRIVES Logical drive technology includes e RAID Levels e RAID Level Migration e Stripe Size e Sector Size e Initialization RAID Levets RAID Redundant Array of Independent Disks allows multiple physical drives to be combined together in a disk array Then all or a portion of the disk array is formed into a logical drive The operating system sees the logical drive as a single storage device and treats it as such RAID 0 STRIPE When a logical drive is striped the read and write blocks of data are interleaved between the sectors of multiple physical drives Performance is increased since the workload is balanced between drives or members
52. computer Use them to make disk arrays PassThru drives are visible to your computer and are configured as individual drives They cannot be used to make a disk array 52 Promise Technologies 4 Click the Save button 5 Click the X icon to close the settings panel Making Physical Drive SMART Loc SETTINGS To make physical drive SMART log settings 1 Click the Physical Drive icon 2 Mouse over the physical drive you want then click the Settings button 3 Click the SMART Log Settings tab 4 Check the box to enable the SMART log 5 Click the Save button 6 Click the X icon to close the settings panel CLEARING A STALE OR A PFA CONDITION Stale The physical drive contains obsolete disk array information PFA The physical drive has errors resulting in a prediction of failure Be sure you have first corrected the condition by a physical drive replacement rebuild operation etc Then clear the condition To clear a Stale or a PFA condition 1 Click the Physical Drive icon 2 Mouse over the physical drive you want then click the Clear button 3 Click the Confirm button If the physical drive has both a Stale condition and a PFA condition the first click removes the Stale condition Click the Clear button a second time to remove the PFA condition 53 Pegasus2 R4 R6 R8 Product Manual FonciNG A Puysicat Drive OFFLINE This feature applies only to physical drives assigned to disk arrays Important F
53. condition of the media itself not the data recorded on the media If Media Patrol encounters a critical error it triggers PDM if PDM is enabled on the disk array Media Patrol has three status conditions e Running Normal You can access your logical drives at any time e Yield Temporary pause while a read write operation takes place e Paused Temporary pause while another background runs Or a pause initiated by the user See Media Patrol on page 41 89 Pegasus2 R4 R6 R8 Product Manual PDM Predictive Data Migration PDM is the migration of data from the suspect disk drive to a spare disk drive similar to rebuilding a logical drive But unlike Rebuilding PDM constantly monitors your disk drives and automatically copies your data to a spare disk drive BEFORE the disk drive fails and your logical drive goes Critical The following actions trigger PDM e Adisk drive with unhealthy status see below Media Patrol finds a disk critical error e You initiate manually oee Running PDM on a Logical Drive on page 81 PDM also counts the number of media errors reported by Media Patrol A disk drive becomes unhealthy when e ASMARI error is reported e bad sector remapping table fills to the specified level Because data would be lost if written to a bad sector when a bad sector is detected the disk drive creates a map around it These maps are saved in the bad sector remapping table which have a
54. d pkg file will change as it is updated The version number used in this example is just for the purpose of illustration License Select Installagign Type Instalfation e Summary Go Back Continue 10 Promise Technologies The Welcome menu explains that software will be installed on the Mac Click the Continue button to proceed with installation Install Promise Pegasus Software p License Agreement English n Introduction Eng OEM SOFTWARE USAGE AND DISTRIBUTION LICENSE 9 License AGREEMENT IMPORTANT By opening this package or installing distributing or using the SOFTWARE you agree to the terms of this Agreement Do Instalfation i not open this package until you have carefully read and agreed to the following terms and conditions If you do not agree to the terms of this e Summary return package CENSE AGREEMENT applies If A the PROMISE LICENSE Agreement Promise Technology grants istribute the enclosed software GoBack Continue 4 The Software License Agreement appears please read the statement and click Continue to proceed To continue installing the software you must agree to the terms of the software license agreement Click Agree to continue or click Disagree to cancel the installation and quit the Installer Read License Disagree Agree 5 Click Agree if you a
55. d Center Knowledge Base e Support Download Center Services and Warranties Training and Certification Open Source Linux Support ServicePlus PROMISE Technology is committed to providing high quality service and support to its customers Our Legacy Download Center technical support is limited to PROMISE branded retail products Different OEM manufacturers may have made unique modifications to the PROMISE hardware or software and they are responsible for supporting their products PROMISE does not offer support on any of the following e Controllers sold under another vendors name e Systems such as those from Dell Gateway Micron NEC Fujitsu or others that may include a PROMISE controller e Motherboards which have an embedded PROMISE controller If you have purchased any of the products listed above please contact the vendor from whom you purchased the product for technical support If you want to download materials of legancy products please click the following Legacy Products Download Pegasus2 R8 Pegasus2 Series Ind product line and model here Download search results below Data Sheet 3 Compatibility 6 Utilities 5 Firmware 6 Drivers 1 Manual 3 Installation Guides 2 150 Promise Technologies GNU GENERAL PUBLIC LICENSE This product includes copyrighted third party software licensed under the terms of the GNU General Public License Please see
56. d changes to your RAID system When the UI is locked you cannot create logical drives or change settings on the Pegasus2 unit To unlock the UI 1 At the lower left screen of the PROMISE Utility window click the closed lock icon Click the lock to make changes The PROMISE Utility password dialog box opens 2 Type your Mac computer password into the Password field and click the OK button ES Type your password to allow Promise Utility A to make changes 00 Name demo Details f Cancel The lock icon changes to open and you can now add and delete logical drives make settings run background activities and update your Pegasus2 system DisPLAYiNG Mu riPLE PEcAsUs PEGAsus2 UNITS The PROMISE Utility displays a separate window for each Pegasus unit connected by Thunderbolt cable and powered up To view a list of the Pegasus or Pegasus2 units click the View menu To display a Pegasus or Pegasus2 unit in the PROMISE Utility click the View menu and choose unit you want to see Promise Utility View Dashboard Device Hide Toolbar XET Customize Toolbar Devices Pegasus R4 81 Pegasus R4 2 952 The first Pegasus unit is Pegasus R4 or R6 R8 the second is Pegasus R4 2 R6 2 R8 2 the third is Pegasus R4 3 or R6 3 R8 3 and so on The Pegasus units are listed by the order in which they are recognized not by the cable configuration The PROMISE Utility can be used for either Pega
57. disk array to which the physical drive belongs Then delete the disk array If the error condition remains on the physical drive clear the error condition 123 Pegasus2 R4 R6 R8 Product Manual LocariNG Puysicat DRIVE To locate a physical drive 1 Doone of the following actions e Click the Physical Drive icon e From the Device menu choose Physical Drive 2 Mouse over and click the physical drive you want then click the Locate button The Power Status LED for the drive carrier holding that drive blinks blue and orange for one minute Running the Locate function to identify a physical drive Power Status LEDs blink blue and orange IMPORTANT Please read the Compatibly List for physical drives before purchasing new drives to install in Pegasus2 Download the list from the PROMISE website See Hard Drive Compatibility on page 150 for instructions 124 Promise Technologies REPLACING A Puysicat DRIVE A failed physical drive displays a red X 6 icon in the PROMISE Utility and a red Power Status LED on the drive carrier Failed physical drive Power Status LED is red Activity LED is blue Check the failed drive then obtain a replacement drive of the same e Type Hard disk drive HDD or solid state drive SSD e nterface SATA 3 Gb s or 6 Gb s e speed 7 200 RPM or 15 000 RPM e Capacity Equal size or larger You do not have to install the identical make and model of
58. dium Balances system resources between Synchronization and data read write operations e High More system resources to Synchronization fewer to data read write operations 4 Click the Confirm button 5 Click the X icon to close the background activities panel 47 Pegasus2 R4 R6 R8 Product Manual MANAGING Physical DRIVES Physical drive management includes e Viewing a List of Physical Drives e Viewing Physical Drive Information e Viewing Physical Drive Statistics e Viewing Physical Drive SMART Log Information e Locating a Physical Drive e Making Global Physical Drive Settings e Making Individual Physical Drive Settings e Making Physical Drive SMART Log Settings e Clearing a Stale or a PFA Condition e Forcing a Physical Drive Offline Viewing A List or Puysicat Drives To view a list of physical drives in the Pegasus unit click the Physical Drive icon Physical drive information includes e 1 ID number of the physical drive e Status Normal Stale or PFA or Dead icon Model Number Type SATA HDD or SSD e Location Enclosure number and slot number e Configuration Array number and sequence number spare number unconfigured or stale configuration e Capacity In GB 48 Viewine Puysicat Drive INFORMATION To view physical drive information 1 2 Click the Physical Drive icon Promise Technologies Mouse over the physical drive
59. e configuration can be done in one of the following ways Automatic This option enables you to create a new disk array following a default set of parameters proposes a disk array and logical drive arrangement You can accept or reject the proposed arrangement but you cannot modify it Express You choose the parameters for a new disk array by specifying the characteristics you want Advanced You directly specify all parameters for a new disk array logical drives and spare drive Choose the best method for your situation See the table on the next page Method Suggested for users who are General parameters Familiar with data storage Individual parameters Data storage professionals page 63 59 Pegasus2 R4 R6 R8 Product Manual CHOOSING AUTOMATIC CONFIGURATION To use the Automatic Configuration Wizard 1 From the Storage menu choose Wizard 2 Click the Automatic button The Automatic Configuration dialog box appears Automatic Configuration dialog box Pegasus2 R6 gt amp 3 g E 5 Dashboard Wizard Physical Drive Disk Array Logical Drive Subsystem Information Events Background Activities Automatic Configuration Disk Array Information Number of Logical Drives 1 Number of Physical Drives 5 Physical Drive IDs 1 2 3 4 5 Total Configurable Capacity 395 GB Media Type HDD Disk Array Logical Drives RAID Level Capacity Sector Stripe 1 RAIDS 316 GB 512 Bytes m Spare
60. e creates a logical drive only You can also use the Wizard to create a disk array with logical drives and spare drives at the same time See Creating a Disk Array and Logical Drive with the Wizard on page 59 74 Promise Technologies To create a logical drive manually 1 Doone of the following actions Click the Logical Drive icon From the Storage menu choose Logical Drive 2 Click the Create Logical Drive button 3 Click the radio button of the disk array you want to use and click the Next button 4 Accept the defaults or make changes Optional Enter an alias in the Alias field Maximum of 32 characters letters numbers space between characters and underline Choose a RAID level The choice of RAID levels depends the number of physical drives in the disk array In the Capacity field accept the default maximum capacity or enter a lesser capacity and size in MB GB or TB Any remaining capacity is available for an additional logical drive Choose a Stripe size 64 KB 128 KB 256 KB 512 KB and 1 MB are available Choose a Sector size 512B 1KB 2 KB and 4 KB are available Choose a Read cache Policy Read Cache Read Ahead and No Cache are available Choose a Write cache Policy Write Back and Write Through Thru are available The Write Cache is always set to Write Thru when the Read Cache is set to NoCache For RAID 6 logical drives choose a Codec Scheme from the dropdown menu P Q a
61. e implications the condition are serious Action is required now us Action is required but the condition is not a serious at this time User can decide whether or not action is required Information Information only no action is required 122 Promise Technologies PHYSICAL Drive PROBLEMS Physical drive troubleshooting includes e Diagnosis using the PROMISE Utility e Locating a Physical Drive e Replacing a Physical Drive e Physical Drive Warning Message Physical drives are the foundation of data storage A physical drive problem can affect your entire RAID system DIAGNOSIS USING THE PROMISE UTILITY icon or a red e icon appears beside a physical drive In the PROMISE Utility when a yellow B check the drive s operational status 1 Click the Physical Drive icon 2 Mouse over and click the physical drive you want then click the View button Look under Operational Status for the condition of the physical drive e Offline Check the drive for e PFA Condition Caused by a bad block or sector See Note 1 below e Stale Condition Caused by obsolete array information on the physical drive See Note 2 below Drive Failed or Dead The physical drive cannot be repaired You must replace the failed drive Note 1 Clear the error condition Then the physical drive is available See Clearing a Stale or a PFA Condition on page 53 Note 2 Identify the
62. e is based on a state of the art PMC Sierra 8011 I O processor coupled with 512 MB of DDR2 SDRAM memory and a world class enterprise proven RAID engine PROTOCOL SUPPORT Pegasus2 supports Thunderbolt 2 technology providing two channels with 20 Gb s of throughput in both directions simultaneously Thunderbolt 2 is compatible with the previous original version of Thunderbolt Thunderbolt and Thunderbolt 2 support daisy chaining up to six 6 high speed peripheral devices including external disks video capture devices and a Mini DisplayPort monitor Pegasus2 has two Thunderbolt ports as required for daisy chaining Key BENEFITS e Thunderbolt 20 Gb s data connection e PMC Sierra 8011 I O processor e 512 MB of DDR2 SDRAM memory e PROMISE Utility management tool e Compatible with Apple Time Machine e six SATA 3 5 inch hard disk drives e R4 four SATA 3 5 inch hard disk drives e R8 eight SATA 3 5 inche hard disk drives e Additional storage using multiple daisy chained Pegasus and Pegasus2 enclosures e 250W Flex ATA Power with 80 Plus Bronze Promise Technologies SPECIFICATIONS The Pegasus2 is shipped with 3 5 inch SATA Hard Disk Drives HDD installed in the drive carriers and placed in the drive bays Storage Disks Users can replace the drives with any of the supported drive types For many RAID configurations it is best to install drives that are identical in type and storage capacity The following stor
63. e the default 00000000 value 5 Click the Confirm button 6 Inthe Confirmation box type the word confirm in the field provided and click the Confirm button PAUSING AND RESUMING AN INITIALIZATION pause or resume Initialization 1 Click on the Background Activities icon The list of background activities appears 2 Mouse over Initialization and click the Pause or Resume button STOPPING AN INITIALIZATION stop means to cancel an Initialization 1 Click on the Background Activities icon The list of background activities appears 2 Mouse over Initialization and click the Stop button 3 In the Confirmation box type the word confirm in the field provided and click the Confirm button REDUNDANCY CHECK ON A LocicaL DRIVE Redundancy Check is a routine maintenance procedure for fault tolerant disk arrays those with redundancy that ensures all the data matches exactly Redundancy Check can also correct inconsistencies To run Redundancy Check on a logical drive 1 Click on the Background Activities icon The list of background activities appears 2 Mouse over Redundancy Check and click the Start button 3 Check the boxes to the left of the logical drives on which to run Redundancy Check 78 Promise Technologies 4 Check the options you want Auto Fix Attempts to repair the problem when it finds an error Pause on Error The process stops when it finds a non repaira
64. efers to any of several kinds of high speed volatile memory that hold data moving from your computer to the physical drives or vice versa Cache is important because it can read and write data much faster than a physical drive There are read caches which hold data as it is read from a physical drive and write caches which hold data as it is written to a physical drive In order to tune the cache for best performance in different applications user adjustable settings are provided Cache settings are made on the RAID controller See Making Controller Settings on page 25 READ CACHE Policy Read Cache The read cache is enabled but no pre fetch action Read Ahead The read cache and predictive pre fetch feature are enabled Read ahead anticipates the next read and performs it before the request is made Can increase read performance No Cache The read cache is disabled WhirE CAcHE PoLicvY Write Back Data is written first to the cache then to the logical drive Better performance Pegasus has a cache backup battery to protect data in the cache from a sudden power failure Write Thru Also Write Through Data is written to the cache and the logical drive at the same time Safer 116 Promise Technologies Capacity COERCION This feature is designed for fault tolerant logical drives RAID 1 1E 5 6 and 10 It is generally recommended to use physical drives of the same size in your disk arrays When this is n
65. er end into a suitable power source Thunderbolt and power connections Thunderbolt ports Thunderbolt port E Mn E ununi MacBook Pro shown as an example To power source Power cable Thunderbolt cable Promise Technologies CONNECT 052 TO YOUR Note If the Thunderbolt cable is connected to a Mac that is running the Pegasus2 will power up as soon as the power is connected This is a new feature for the Pegasus2 To establish the Thunderbolt connection 1 Connect a Thunderbolt cable from one of the Thunderbolt ports on the back of the Pegasus2 to the Thunderbolt port on your Mac computer See Thunderbolt and power connections on page 8 2 Ifthe Pegasus2 is plugged into a power source and the is running the Pegasus2 will power on and begin to boot up See Power modes on the Pegasus2 on page 13 for information on power up and shut down behavior You will notice the following e The Power Button LED lights orange at first then blue e The drive carrier Power Status LEDs light blue e The Thunderbolt Link LED for the port connected to the Mac lights blue oee Pegasus2 R4 front view on page 4 for illustration of the front of the device e The PROMISE RAID storage drive icon see picture below appears on your desktop This indicates the Pegasus2 is ready for use PROMISE Note When the device is powered on by connecting the Thunderbolt cable or by pres
66. er modes on the Pegasus2 on page 13 Shutting down the Pegasus2 on page 13 WARNING The fan contains hazardous moving parts Keep fingers and other body parts away Promise Technologies SUMMARY OF THE SETUP PROCEDURE The setup procedure for the Pegasus2 is simple and easy The device is shipped with hard disk drives installed and a RAID array configured so it is just necessary to plug it in and connect the device However you should install the PROMISE Utility software used for monitoring and administration of the system Please follow the setup procedure here or in the Quick Start Guide The setup process is summarized below 1 2 Unpack the Pegasus2 shipping package Connect the power cord and power on the Pegasus2 R4 R6 R8 Connect the Pegasus2 to your Mac computer with a Thunderbolt cable Find the Pegasus2 Utility installation package located on the device Pegasus2 is shipped with RAID 5 configuration and install the management software utility PACKING LIST Check the shipping package to make sure you have the following items Pegasus2 R4 Pegasus2 R6 or Pegasus2 R8 e Thunderbolt cable Hard disk drives four in six in R6 eightinR8 Power Quick Start Guide Pegasus2 R4 R6 R8 Product Manual CONNECT THE POWER CORD To connect the power cord the Pegasus2 unit 1 Attach the power cord on the back of the Pegasus2 unit See Thunderbolt and power connections below 2 Plug the oth
67. erational Status e Power On Time e Cache Usage Percentage e Dirty Cache Usage Percentage e Part Number e Serial Number e Hardware Revision WWN Worldwide Number e SCSI Protocol Supported e BIOS Version e Single Image Version e Single Image Build Date e Host Driver Version 29 Pegasus2 R4 R6 R8 Product Manual To view advanced information click the Advanced Information tab Advanced controller information includes e Memory e e Flash Type e e NVRAM Type e Preferred Cache Line Size e Coercion e SMART e Write Back Cache Flush Interval e e Enclosure Polling Interval e Forced Read Ahead cache Memory Size Flash Size NVRAM Size Cache Line Size Coercion Method SMART Polling Interval Write Through Mode Adaptive Writeback Cache Items with an asterisk are adjustable under Making Controller Settings on page 31 5 Click the X icon to close the information panel VIEWING CONTROLLER STATISTICS To view controller statistics 1 Click the Dashboard icon then click the Controller link 2 Click the Statistics tab Controller statistics include e Data Transferred e Write Data Transferred e Non Read Write Errors e Write Errors s e Non Read Write Requests e Write I O Requests e Statistics Collection date and time 3 Click the X icon to close the information panel 30 Read Data Transferred Errors Read Errors Requests
68. erationally compatible with the original release of Pegasus Material that applies only to the Pegasus2 will specify Pegasus2 Use of the term Pegasus implies that the material applies to both versions This manual includes a full table of contents chapter task lists and numerous cross references to help you find the specific infor mation you are looking for Also included are four levels of notices Note A Note provides helpful information such as hints or alternative ways of doing a task Important An Important notice calls attention to an essential step or point required to complete a task Important items include things often missed WARNING A Warning notifies you of probable equipment damage or loss of data or the possibility of physical injury and how to avoid them Pegasus2 R4 R6 R8 Product Manual FCC 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 harmful interference when the equipment is operated in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference
69. errupting I O or loss of data A minimum of eight drives are required for a RAID 60 so this option is available on the R8 PROMISE RAID 60 starts with RAID 6 double parity then stripes the blocks RAID O RAID 6 Set 1 RAID 6 Set 2 RAID 60 is available on the R8 To figure out the capacity multiply the smallest drive capacity by four So an R8 with 8 2 TB drives has a capacity of 8 TB with a RAID 60 Advantages Disadvantages High Read data transaction rate e High disk overhead four drives as hot spares on R8 Medium Write data transaction rate e Slightly lower performance than RAID 50 Good aggregate transfer rate Safest RAID level Recommended Applications for RAID 50 include applications that require extremely high fault tolerance and good 1 0 performance 100 Promise Technologies RAID Lever MIGRATION The term Migration means either or both of the following e Change the RAID level of a logical drive e Expand the storage capacity of a logical drive On Pegasus RAID level migration is performed on the disk array but it applies to the logical drives Migration does not disturb your data You can access the data while the migration is in progress When migration is done your disk array has a different RAID level and or a larger capacity MIGRATION REQUIREMENTS The following conditions affect RAID level migration e disk array and logical drive must show a green check icon e The Targ
70. et disk array may require more physical drives than the Source disk array e Ifthe Target disk array requires an EVEN number of physical drives but the Source disk array has an ODD number ADD a physical drive as part of the migration process e You cannot reduce the number of physical drives in your disk array even if the Target disk array requires fewer physical drives than the Source disk array e RAID 1 mirroring works with two drives only Only a single drive RAID 0 disk array can migrate to RAID 1 Other RAID Levels use too many drives to migrate e You cannot migrate a disk array when it is Critical or performing activities such as Synchronizing Rebuilding and PDM e For RAID 6 you can add more physical drives but you cannot change the RAID level Source AND TARGET RAID LeEveELs The tables on the following pages show the migration options for each source logical drive by its RAID level The available target RAID levels are shown with their requirements 101 Pegasus2 R4 R6 R8 Product Manual RAID 1 A RAID 1 Source logical drive can migrate to the following Target logical drives RAID 1E 30r more physical drives Add 1 or more physical drives 3 physical drives minimum maximum 4 R4 6 R6 or 8 R8 RAID 1 must have less than 4 R4 6 R6 or 8 R8 physical drives Add 1 or more physical drives RAID 10 4 physical drives minimum Even number of physical drives Add 2 or more physical drives RAID 50 6
71. ewer to data read write operations Click the Confirm button Click the X icon to close the background activities panel 44 Promise Technologies PDM Predictive Data Migration PDM is the migration of data from the suspect disk drive to a spare drive similar to rebuilding a disk array But unlike rebuilding PDM automatically copies your data to a spare drive before the drive fails and your logical drive goes Critical PDM can be triggered automatically by Media Patrol Also see Running PDM on a Logical Drive on page 81 Making SETTINGS To make PDM settings 1 Click on the Background Activities icon 2 Click the Settings button 3 the following settings are required e Click the Rate dropdown menu and choose a rate e Low Fewer system resources to more to data read write operations e Medium Balances system resources between PDM and data read write operations e High More system resources to fewer to data read write operations e Highlight the current values in the block threshold fields and input new values Reassigned block threshold range is 1 to 512 blocks Error block threshold range is 1 to 2048 blocks 4 Click the Confirm button 5 Click the X icon to close the background activities panel 45 Pegasus2 R4 R6 R8 Product Manual TRANSITION Transition is the process of replacing a revertible spare drive that is currently part of a disk array with an unconfig
72. f the smallest physical drive times the number of physical drives minus two RAID 50 also provides very high reliability because data is still available even if multiple physical drives fail one in each axle The greater the number of axles the greater the number of physical drives that can fail without the RAID 50 logical drive going offline A minimum of six drives are required for a RAID 50 98 Promise Technologies RAID 50 Striping of Distributed Parity RAID O RAID 5 Set 1 RAID 5 Set 2 Advantages Disadvantages High Read data transaction rate e Higher disk overhead than RAID 5 two drives as hot spares Medium Write data transaction rate Good aggregate transfer rate High reliability Supports large volume sizes Recommended Applications for RAID 50 include applications that require high fault tolerance and good I O performance e File and Application servers e Transaction processing e Office application with many users accessing small files 99 Pegasus2 R4 R6 R8 Product Manual RAID 60 Double PARITY STRIPE The PROMISE RAID 60 combines RAID 6 distributed double parity and RAID 0 block level striping RAID 60 can increase performance by reading and writing data in parallel or striping while simultaneously providing parity PROMISE implements RAID 60 by creating a data stripe across two RAID 6 sets This creates very high fault tolerance two drives in each RAID 6 set can fail without int
73. formed using elevator seek and load balancing techniques where the workload is distributed in the most efficient manner Whichever drive is not busy and is positioned closer to the data is accessed first With RAID 1 if one physical drive fails or has errors the other mirrored physical drive continues to function Moreover if a spare physical drive is present the spare drive is used as the replacement drive and data begins to mirrored to it from the remaining good drive RAID 1 Mirrors identical data to two drives Data Mirror Physical Drives The logical drive s data capacity equals the smaller physical drive For example a 100 GB physical drive and a 120 GB physical drive have a combined capacity of 100 GB in a mirrored logical drive If physical drives of different capacities are used there is unused capacity on the larger drive RAID 1 logical drives on Pegasus consist of two physical drives If you want a mirrored logical drive with more than two physical drives see RAID 1E Enhanced Mirror 93 Pegasus2 R4 R6 R8 Product Manual Advantages Disadvantages Simplest RAID level e Very high disk overhead uses only 50 of l total capacity Can increase read performance by processing data requests in parallel since the same data resides on two different drives Recommended Applications for RAID 1 e Accounting e Payroll e Financial e Any application requiring very high availability RAID 1E ENHANCE
74. gree to the terms of the license To read the license click Read License Choose Disagree if you do not agree the terms in which case the installation procedure is terminated Install Promise Pegasus Software 8 Pp Install on Macintosh HD 9 Introduction S likense A This will take 5 MB of space your computer Click Install to perform a dard installation of this software for all users of this computer All users of this computer will be able to use this software e Installation Summary GoBack Install 6 If you clicked Agree in the previous menu the software is now ready to install Click Install to begin 11 Pegasus2 R4 R6 R8 Product Manual Install Promise Pegasus Software 8 The installation was completed successfully 6 Introduction License Destination Select 9msallaion installation was successful UD The sof was installed Go Back Close 7 l ttakes a few seconds for the utility software to be installed When the installation has completed a message informs you that the installation was successful Click Close to end the installation procedure The PROMISE Utility is now available to be used for management of the Pegasus2 Use this if you need to change a hard disk drive or change the default array configuration or to update the device firmware This is also useful for monitoring the status of the system and for
75. gs panel LocariNG Puysicat DRIVE This feature causes the drive carrier LEDs to blink for one minute to assist you in locating the physical drive and is supported by RAID enclosures and JBOD expansion units To locate a physical drive 1 Click the Physical Drive icon 2 Mouse over the physical drive you want then click the Locate button The Drive Power Status LED for the drive carrier holding that drive blinks blue and orange for one minute Running the Locate function to identify a physical drive Drive Power Status LEDs blink blue and orange 51 Pegasus2 R4 R6 R8 Product Manual MakiNG GLOBAL Puysicat Drive SETTINGS To make global physical drive settings 1 Click the Physical Drive icon 2 Click the Global Physical Drive Settings button 3 Check the boxes to enable uncheck to disable e Enable Write Cache e Enable Read Look Ahead Cache e Enable Command Queuing 4 Click the Save button 5 Click the X icon to close the settings panel MAKING INDIVIDUAL PuysicaL Drive SETTINGS To make individual physical drive settings 1 Doone of the following actions e Click the Physical Drive icon e From the Device menu choose Physical Drive 2 Mouse over the physical drive you want then click the Settings button 3 changes as needed e Enter change or delete the alias in the Alias field e Choose Unconfigured or PassThru Configuration Unconfigured drives are not visible to your
76. has not been designated as a spare therefore the Pegasus controller cannot use it as a spare Automatic Transition At this juncture you would replace the failed drive in slot 3 with a new physical drive of the same or greater capacity Array Drives When the Pegasus controller detects the new drive in slot 3 the controller Automatically transitions the data on drive 6 to drive 3 114 Promise Technologies Returns drive 6 to spare status When the Automatic Transition is finished physical drives 1 2 3 and 4 belong to the disk array and physical drive 6 is a revertible spare drive The original configuration is restored Manual Transition If you wanted to use the drive in slot 5 as a member of the disk array rather than the drive in slot 3 you would run the Transition function manually See Running a Transition on a Spare Drive on page 71 1 2 Array Drives 3 A 5 6 Spare Drive When the Manual Transition is finished physical drives 1 2 4 and 5 belong to the disk array and physical drive 6 is a revertible spare drive At this point you would replace the drive in slot 3 The new drive in slot 3 remains unconfigured until you assign it to a disk array or as a spare 115 Pegasus2 R4 R6 R8 Product Manual RAID CONTROLLERS RAID controller technology includes e Cache Policy Read Cache Policy and Write Cache Policy e Capacity Coercion As it is used with Pegasus the term cache r
77. he background activities panel 41 Pegasus2 R4 R6 R8 Product Manual REDUNDANCY CHECK Redundancy Check is a routine maintenance procedure for fault tolerant disk arrays those with redundancy that ensures all the data matches exactly Redundancy Check can also correct inconsistencies See Redundancy Check on a Logical Drive on page 64 MAKING REDUNDANCY CHECK SETTINGS To make Redundancy Check settings 1 Click on the Background Activities icon 2 Click the Settings button 3 Click the Redundancy Check Rate dropdown menu and choose a rate e Low Fewer system resources to Redundancy Check more to data read write operations e Medium Balances system resources between Redundancy Check and data read write operations e High More system resources to Redundancy Check fewer to data read write operations 4 Click the Confirm button 5 Click the X icon to close the background activities panel INITIALIZATION Technically speaking Initialization is a foreground activity as you cannot access a logical drive while it is initiating Initialization is normally done to logical drives after they are created from a disk array Initialization sets all data bits in the logical drive to zero The action is useful because there may be residual data on the logical drives left behind from earlier configurations For this reason Initialization is recommended whenever you create a logical drive See Initializing a Logic
78. he block data A RAID 6 logical drive can continue to accept I O requests when any two physical drives fail Figure 5 RAID 6 stripes all drives with data and dual parity Double Distributed Wide space Q Q Parity Data Blocks Physical Drives Hence a RAID 6 logical drive with 7 100 GB physical drives has a capacity of 500 GB A RAID 6 logical drive with 4 100 GB physical drives has a capacity of 200 GB RAID 6 becomes more capacity efficient in terms of physical drives as the number of physical drives increases RAID 6 provides double fault tolerance Your logical drive remains available when up to two physical drives fail RAID 6 is generally considered to be the safest RAID level A RAID 6 on Pegasus R4 consists of four physical drives 96 Promise Technologies A RAID 6 on Pegasus R6 consists of four to six physical drives Advantages Disadvantages e High Read data transaction rate High disk overhead equivalent of two drives used for parity e Medium Write data transaction rate Slightly lower performance than RAID 5 Good aggregate transfer rate Recommended Applications for RAID 6 e Accounting and Financial e Database servers Any application requiring very high availability RAID 10 MIRROR STRIPE Mirror Stripe combines both of the RAID 1 and RAID 0 logical drive types RAID 10 can increase performance by reading and writing data in parallel or striping and duplicating the dat
79. he default GPT Format partition and the default e Journaled HFS format are recommended 3 Click the Format button When the PROMISE Utility has finished the partition and format operation new removable drive icons each representing one logical drive appear on your desktop right When you see the icon your logical drives are ready to use 109 Pegasus2 R4 R6 R8 Product Manual Disk UriLiTY For information on using your computer s disk utility see the online help or the computer s User Manual To format your logical drives using the computer s disk utility you must create your logical drives using the Wizard Advanced option or create your logical drives manually and you must UNcheck the Format box oee Creating a Disk Array and Logical Drive with the Wizard on page 59 and Creating a Logical Drive Manually on page 74 To format your logical drives using the computer s disk utility 1 Click the Go menu and choose Utilities from the dropdown list 2 Double click the Disk Utility icon to open the utility 3 n the drive list highlight the logical drive you want to format and click the Partition button 4 Make your Volume Scheme Volume Information and Options settings and click the Apply button For Macintosh computers the default GPT Format partition and the default Journaled HFS format are recommended 5 In the Confirmation dialog box click the Partition button When the disk utility has finished the pa
80. hecking for Updates Preferences Services Hide Quit e View Show Hide Toolbar Customize Toolbar Devices Pegasus units e Dashboard Show the Dashboard e Device Front and Back Views Component List Physical Drive List e Storage Wizard Disk Array List Logical Drive List Spare Drive List e Admin Enclosure Pegasus unit Information Events Background Activities Firmware Update Performance Monitor see page 139 and Restore Factory Default settings e Window Minimize Zoom Close Window Bring All to Front Pegasus unit e Help Online help search Most of the functions accessed in the menu bar are described in this chapter 20 Promise Technologies TOOLBAR ICONS The default toolbar icons are listed here Dashboard icon Displays the Dashboard and overview Wizard icon Displays the Wizard options for quickly setting up RAID arrays Physical Drive icon Displays the physical drive list settings and functions Disk Array icon Display menu for monitoring managing and creating disk arrays Logical Drive icon Displays the logical drive list settings and functions Subsystem Information icon Displays Pegasus unit information and settings Events icon Displays the event logs CUSTOMIZING THE TOOLBAR You can customize the toolbar by adding or removing icons To add and remove toolbar icons 1 From the PROMISE Utility window click the View menu and choose Customize Toolbar The t
81. ias in the Alias field Maximum of 32 characters letters numbers soace between characters and underline e Enable Media Patrol Uncheck to disable on this array For more information see Media Patrol on page 41 Enable Uncheck to disable on this array For more information see PDM on page 45 4 Inthe Select Physical Drives diagram click the drives to add them to your array The drive carriers turn blue when you click them The physical drives ID numbers appear in the field below the diagram 5 When you have finished your settings and choices click the Submit button The new array appears in the list e Ifyou done creating disk arrays click the Finish button e To create additional disk arrays click the Create More button After you create a disk array create a logical drive on it See Creating a Logical Drive Manually on page 61 58 Promise Technologies CREATING A Disk ARRAY AND LogicAL Drive WITH THE WIZARD A disk array is the method of organizing the hard disk drives or solid state drives in the Pegasus unit A logical drive is created on a disk array The logical drive is where your computer saves files on the Pegasus The PROMISE Utility includes a Wizard to help you set up a disk array logical drives and spare drive To open the Wizard click the Storage menu and choose Wizard The Wizard dialog box opens with three configuration methods Wizard dialog box Wizard Th
82. ical drives these appear colored light green Highlight Arrays Click the Highlight Arrays button to identify the physical drives assigned to a disk array these appear colored purple 25 Pegasus2 R4 R6 R8 Product Manual Click on of the following items in the drop down menu e All DA Show all disk arrays DAO DA1 DA2 etc a specific disk array close Click to close the menu and return to normal view The carriers containing drives that do not belong to the chosen disk array will be highlighted Back ViEw Go to Admin drop down menu and choose the Back View option to see a virtual view of the back of the Pegasus2 Move the cursor over the Power Supply PSU or system fan and component status information is displayed Device Back View display menu asu gt iA Dashboard Wizard Physical Drive Disk Array Logical Drive Subsystem Information Events r tivities Back View M id Click the lock to prevent further changes 24 Promise Technologies MANAGING SUBSYSTEMS Enclosure management includes e Viewing Subsystem Information e Making Subsystem Settings e Clearing Statistics e Restoring Factory Default Settings e Saving a Service Report e Updating Firmware VIEWING SUBSYSTEM INFORMATION The term enclosure refers to the Pegasus unit To view enclosure information click the Subsystem Information icon Subsystem Information includes e Alias S
83. icon or Missing e Logical Drive icon Disk Array and Logical Drive are marked Critical with a yellow i icon RAID 6 logical drives are marked e Degraded with a yellow es icon when ONE physical drive is offline e Critical with a yellow 9 icon when TWO physical drives are offline RAID 0 logical drives show Offline status and a red X e icon e Events icon Logs a Major event for the logical drives and a Warning event for the physical drive If there is no spare drive in the Pegasus unit you must provide the replacement drive See Replacing a Physical Drive on page 125 129 Pegasus2 R4 R6 R8 Product Manual Disk Array OFFLiNe Locicat Drive OFFLINE Disk arrays are made up of physical drives Logical drives are created on the disk array When a disk array and its logical drives go Offline the data stored in the logical drives is no longer accessible RAID 0 logical drives go Offline when ONE physical drive is removed or fails RAID 1 1E 5 and 10 logical drives go Offline when TWO physical drives are removed or fail RAID 6 logical drives go Offline wnen THREE physical drives are removed or fail The PROMISE Utility reports these conditions in the following places Dashboard icon Ared X e icon appears beside the disk arrays logical drives and physical drives under System Status e Physical Drive icon Physical drives are shown Dead Offline or Missing e Logical Drive icon Disk Array and Logical Drive
84. ing the problem component displays In the case of a high temperature issue shown in the example above the Component List displays 2 For physical drives disk arrays logical drives and spare drives mouse over the component with the red X e icon and click the View button 134 Promise Technologies OVERHEATING Overheating is a potentially serious condition because the excessively high temperatures can lead to physical drive failure and controller malfunction Overheating usually results from e Fan failure Inadequate air circulation around the Pegasus unit FAN FAILURE The larger fan on the back of the Pegasus unit cools the physical drives and the RAID controller The smaller fan cools power supply Cooling fans are not field replaceable If there is any problem with a cooling fan contact Technical Support to make arrangements for a repair Pegasus cooling fans Disk enclosure cooling fan Power supply f Gr cooling fan 135 Pegasus2 R4 R6 R8 Product Manual INADEQUATE AIR CIRCULATION Air circulation around the Pegasus unit might be a more complex problem Check for these conditions e Accumulated dust or objects blocking the fans Less than a minimum of 13 cm 5 inches space between the back of the unit and the wall or other object e Ambient temperature above 35 C 95 F where the unit is operating To cool down a Pegasus unit e Correct any problems identified a
85. ires e You to replace the failed physical drive in the disk array e You to run the Transition function TRANSITION Transition is the process of replacing a revertible spare drive that is currently part of a disk array with an unconfigured physical drive or a non revertible spare The revertible spare drive returns to its original status In order to run the Transition function the spare drive must be revertible In addition you must specify an unconfigured physical drive of the same or larger capacity and same media type as the revertible spare drive RUNNING A TRANSITION The Transition feature enables you to specify permanent spare drives for your Pegasus unit Transition is the process of replacing a revertible spare drive that is currently part of a disk array with an unconfigured physical drive or a non revertible spare The revertible spare drive returns to its original status Transition happens automatically when the following sequence of events takes place e You create a revertible spare drive See Creating a Spare Drive Manually on page 84 e Aphysical drive assigned to your disk array fails and the array goes critical or degraded e Pegasus automatically rebuilds your array to the revertible spare drive and the array becomes functional again e You replace the failed physical drive with a new physical drive of equal or greater capacity Pegasus automatically transitions moves the data from the revertible sp
86. it for your spare The drive carrier turns blue when you click it The physical drive s ID number appears in the field below the diagram o Click the Submit button to continue If you are done creating spare drives click the Finish button To create another spare drive click the Create More button 84 Promise Technologies MAKING Spare Drive SETTINGS For more information on settings options see Spare Drives on page 92 Io make spare drive settings 1 From the Dashboard window click the Spare Drive link The list of spare drives appears 2 the spare drive you want then click the Settings button 3 Accept the default or change the settings as required e Inthe Revertible dropdown menu choose Yes or e Inthe Spare Type dropdown menu choose Global or Dedicated e If you use chose a Dedicated spare check the box beside the disk array to which this spare drive is assigned 4 Click the Save button RUNNING SPARE CHECK Spare Check verifies the status of your spare drives To run spare check 1 From the Dashboard window click the Spare Drive link The list of spare drives appears 2 Mouse over the spare drive you want then click the Spare Check button 3 Click the Confirm button Spare Check has no pause resume or stop functions When the Spare Check is completed it adds Healthy next to Spare Check Status on the Spare Drive information box After the Spare Check completed me
87. ives in the disk array Finish id Click the lock to prevent further changes 7 Doone of the following actions e If you accept these parameters click the Submit button The Wizard creates your disk array and logical drives If you have an R6 or R8 the Wizard also creates a spare drive e If you do NOT accept these parameters click the Back button then review and modify your choices 62 Promise Technologies CHOOSING ADVANCED CONFIGURATION This option enables you to directly specify all parameters for a new disk array logical drives and spare drives To use the Advanced Configuration Wizard 1 From the Storage menu choose Wizard 2 Click the Advanced button The Create Disk Array screen displays Task 1 Disk Array Creation To create your disk array 1 Accept the defaults or make changes e Enter an alias in the Alias fiel Maximum of 32 characters letters numbers space between characters and underline e Media Patrol Uncheck to disable on this array For more information see Media Patrol on page 73 e Uncheck to disable on this array For more information see on page 73 2 Inthe Select Physical Drives diagram click the drives to add them to your array The drive carriers turn blue when you click them The physical drives ID numbers appear in the field below the diagram 3 Click the Next button to continue The Create Logical Drive screen displays
88. k Array dropdown menu choose the source disk array In the Select Physical Drives diagram click the drives to add them to your array The ID numbers of the chosen drives appear in the field below the diagram Click the Next button Check the box next to the logical drive you want to modify From the dropdown menu choose a target RAID level The choice of RAID levels depends the number of physical drives in the disk array See the Note below In the Capacity field accept the current capacity Or check the Expand Capacity box and enter a greater capacity and size in MB GB or TB If there is capacity remaining you can create an additional logical drive Click the Next button The logical drive ID numbers with the original and target RAID levels and capacities are shown To accept the proposed target values click the Confirm button Note When you add physical drives to a RAID 10 array it becomes a RAID 1E array by default If you are adding an even number of physical drives to a RAID 10 array and you want the target array to be RAID 10 you must specify RAID 10 under RAID level 80 Promise Technologies Running on A LocicaL Drive Predictive Data Migration PDM is the migration of data from the suspect disk drive to a spare drive similar to rebuilding a disk array But unlike rebuilding PDM automatically copies your data to a spare drive before the drive fails and your logical drive goes Critical PDM can be t
89. k the Events icon The log of Runtime Events appears Events are added to the top of the list Each event includes e Index Sequence number of the event Begins with O at system startup e Device Disk Array Logical Drive Physical Drive by its ID number e Event ID Hexadecimal identifier of the event e Severity lowest to highest Information Warning Minor Major Critical and Fatal e Time Date and time the event happened Description A description of the event in plain language 121 Pegasus2 R4 R6 R8 Product Manual Viewinc NVRAM Events This screen displays a list of and information about 508 most important events over multiple subsystem startups To display NVRAM events 1 Click the Events icon The log of Runtime Events appears 2 Click the Runtime Events button The log of NVRAM Events appears Events are added to the top of the list Each item includes e Index Sequence number of the event Begins with 0 at system startup e Device Disk Array Logical Drive Physical Drive by its ID number Event ID Hexadecimal identifier of the event e Severity lowest to highest Information Warning Minor Major Critical and Fatal e Time Date and time the event happened Description A description of the event in plain language EVENT SEVERITY DESCRIPTIONS Fatal Non Recoverable error or Non Recoverable error or failure has occurred has occurred Action is required now and th
90. l drives If existing physical drives have no unused space add 1 or more physical drives RAID 50 6 physical drives minimum See Migrating a Logical Drive on page 79 RAID 5 A RAID 5 Source logical drive can migrate to the following Target logical drives Add physical drives Maximum of 4 R4 6 R6 or 8 R8 4 physical drives minimum maximum of 4 R4 6 R6 or 8 R8 If existing physical drives have no unused space add 1 or more physical drives RAID 10 4 physical drives minimum Even number of physical drives If existing physical drives have no unused space add 1 or more physical drives RAID 5o 6 physical drives minimum RAID 60 8 physical drives minimum See Migrating a Logical Drive on page 79 103 Pegasus2 R4 R6 R8 Product Manual RAID 6 A RAID 6 Source logical drive can migrate to the following Target logical drives Add physical drives Maximum of 4 R4 6 R6 or 8 R8 8 physical drives minimum oee Migrating a Logical Drive on page 79 RAID 10 A RAID 10 Source logical drive can migrate to the following Target logical drives RAID 2 RAID 5 3 physical drives minimum maximum of 4 6 R6 or 8 R8 RAID 10 must have less than 4 R4 6 R6 or 8 R8 physical drives RAID 6 4 physical drives minimum maximum of 4 R4 6 R6 or 8 R8 The RAID 10 logical drive must have less than 4 R4 or 6 R6 physical drives If existing physical drives have
91. n enter an interval in the Every field and choose one or more days of the week e For the Monthly option choose Day of the Month option or a sequential and specific day from the dropdown menu Also choose which months Choose a Start From date from the dropdown menus Choose an End On option e No end date or perpetual e End after a specific number of activity actions e Until date from the dropdown menus For Redundancy Check choose e Auto Fix option Attempts to repair the problem when it finds an error Check to enable e Pause on Error option The process stops when it finds a non repairable error Check to enable e Select LD Check the boxes for the logical drives to run e Redundancy Check Check at least one logical drive Click the Save button To return to currently running background activities click the Background Activities button 39 Pegasus2 R4 R6 R8 Product Manual ENABLING OR DISABLING A SCHEDULED BACKGROUND ACTIVITY Background activity schedules are enabled by default when you create the schedule If you want to stop a background activity now but plan to use it again in the future disable the scheduled activity rather than deleting it To enable or disable change an existing scheduled background activity 1 PA Click on the Background Activities icon Click the Scheduler button The list of scheduled background appears Mouse over the background activity and click the Settings button
92. nd Q Q are available If you want the PROMISE Utility to format your logical drives leave the Format box checked oee Formatting Logical Drives on page 108 5 Click the Add button The new logical drive appears on the list at the right If there is capacity remaining you can create an additional logical drive Pegasus supports up to 32 logical drives 6 When you are finished click the Submit button The new logical drive or drives appear in the logical drive list 75 Pegasus2 R4 R6 R8 Product Manual FORMATTING Your LocicAL DRIVES If you left the Format box checked when you created your logical drives they are formatted automatically When the PROMISE Utility has finished the format operation new removable drive PROMISE icons each representing one logical drive appear on your desktop right If you UNchecked the Format box you must format your logical drives manually oee Formatting Logical Drives on page 108 ais When you see the icon your logical drive is ready to use Your logical drives are ready to use LocariNG A Locicat DRIVE This feature causes the drive carrier LEDs to flash for one minute to assist you in locating the physical drives that make up this logical drive To locate a logical drive 1 Click the Storage tab 2 Click the Logical Drive icon The list of logical drives appears 3 Mouse over the logical drive you want then click the Locate button The Drive Power Status
93. ng Controller Information on page 29 Viewing the Enclosure Information on page 33 Making Buzzer Settings on page 32 and Making Fan Settings on page 32 for more information PHYSICAL DRIVE MENU Go to Admin drop down menu and choose the Physical Drive option to display the Physical Drive menu This is the same menu you see by clicking the Physical Drive menu button at the top of the PROMISE Utility window or by clicking the Physical Drive menu link under System Status in the Dashboard See Managing Physical Drives on page 48 for more information 22 Promise Technologies FRoNT ViEW The Front View active menu lets you view the enclosures and all components on the front of the Pegasus2 Move the cursor over the drive carrier to display the information of the installed physical drive including the device ID physical capacity operational status etc Click on the drive to bring up the Physical Drive Information displaying the detailed information of the device Front View options include the ability to indicate which carriers contain unconfigured physical disks colored green or to highlight arrays colored purple Device Front View display menu S Front View Show Unconfigured PD s Highlight Arrays B s R PROMISE TECHNOLOGY INC M id Click the lock to prevent further changes show Unconfigured Physical Drives Click the Show unconfigured PD s box to identify any unconfigured phys
94. not an insurer If you desire insurance against such damage you must obtain insurance from another party oome states do not allow the exclusion or limitation of incidental or consequential damages for consumer products so the above limitation may not apply to you This warranty gives specific legal rights and you may also have other rights that vary from state to state This limited warranty is governed by the State of California 145 Pegasus2 R4 R6 R8 Product Manual Youn RESPONSIBILITIES You are responsible for determining whether the product is appropriate for your use and will interface with your equipment without malfunction or damage You are also responsible for backing up your data before installing any product and for regularly backing up your data after installing the product PROMISE is not liable for any damage to equipment or data loss resulting from the use of any product RETURNING THE For REPAIR If you suspect a product is not working properly or if you have any questions about your product contact our Technical Support staff and be ready to provide the following information e Product model and serial number required e Return shipping address e Daytime phone number e Description of the problem e Copy of the original purchase invoice The technician helps you determine whether the product requires repair If the product needs repair the technician issues an RMA Return Merchandise Authorization
95. of the Performance Monitor display Performance information is displayed in graph form for logical drives and physical drives Use the pull down menus to displayed what parameter is being measured and which logical or physical drive you want to monitor The parameters available for measurement are Bandwidth in MB s and I O requests Performance Monitor display eoo Pegasus2 R4 4 Cf mm m B c Dashboard Wizard Physical Drive Disk Array Logical Drive Subsystem Information Events Background Activities Performance Monitor 9 Logical Drive Measurement Bandwidth MB s Select Logical Drives 280 Total of all 174 MB s 240 LDO 174 MB s 200 160 120 80 40 Physical Drive Measurement Bandwidth MB s Select Physical Drives 140 Total of all 151 MB s 120 Device ID1 40 MB s 100 Device ID2 31 MB s 80 Device 103 40 MB s pr Device 104 40 MB s 20 0 id Click the lock to prevent further changes 139 Pegasus2 R4 R6 R8 Product Manual CONTACTING TECHNICAL SUPPORT PROMISE Technical Support provides several support options for PROMISE users to access information and updates We encourage you to use one of our electronic services which provide product information updates for the most efficient service and support Promise offers local Phone Support for Pegasus2 during normal business hours Monday to Friday Please check the Contact Us page for phone numbers of local Phone Support and other contact info
96. on page 125 To perform a manual rebuild 1 Click on the Background Activities menu icon 2 Mouse over Rebuild and click the Start button 3 From the Source Physical Drive dropdown menu choose a Source disk array and physical drive Arrays have an ID No Physical drives have a Seq No sequence number 4 From the Target Physical Drive dropdown menu choose a Target physical drive 5 In the Confirmation box type the word confirm in the field provided and click the Confirm button When the disk array is rebuilding e The disk array shows a green check icon and Rebuilding status e Logical drives under the disk array continue to show a yellow icon and Critical Rebuilding status e If the buzzer is enabled the Pegasus2 unit emits two quick beeps every five seconds When the beeps stop the rebuild is done 131 Pegasus2 R4 R6 R8 Product Manual INCOMPLETE ARRAY Amore serious but far less common problem is an Incomplete Array An incomplete array results from a physical drive that fails or becomes missing during e RAID level migration e Disk array transport MIGRATION Normally if a physical drive or the controller fails during migration the disk array goes critical and you can rebuild it TRANSPORT Transport is the action of moving the physical drives of a disk array e To different slots in the same subsystem e From one subsystem to another If a physical drive fails during a transport or y
97. oolbar options dialog box appears Do one or both actions are needed e Click and drag an icon from the dialog box to the toolbar to add the icon e Click and drag an icon from the toolbar to delete the icon When you are finished click the Done button 21 Pegasus2 R4 R6 R8 Product Manual DEVICE MENUS Use the Device drop down menu in the menu bar at the top of your desktop to view an active display of the Pegaus2 device as well as access to menus used to configure settings for device hardware and physical drives To view the PROMISE Utility menu bar just select the PROMISE Utility window and the menu bar lists the Device Admin and other menus categories Device menu options Promise Utility View Dashboard 21115 Storage Admin Window Help Front View 8 Back View Component List gt Physical Drive Pegasus2 R6 Ead Dashboard Wizard Physical Drive Disk Array Logical Drive Subsystem Information Events b Note The Physical Drive menu and Component List are also accessible using the Physical Drive and Controller menu links listed under System Status in the Dashboard menu COMPONENT LisT Go to Admin drop down menu and choose the Component List option to display the device ID operational status enclosure type and status description of all enclosures The Enclosure Controller Buzzer and Fan menus are described in relevant sections of this chapter See Viewi
98. orcing a physical drive offline causes your logical drives to become degraded If Auto Rebuild is enabled and a spare drive is available the disk array begins rebuilding itself automatically To force a physical drive offline 1 Click the Physical Drive icon 2 Mouse over the physical drive you want then click the Force Offline button 3 In the Confirmation box type the word confirm in the field provided and click the Confirm button 54 Promise Technologies RuNNiNcG MEDIA PATROL ON YOUR PHYSICAL DRIVES Media Patrol is a routine maintenance procedure that checks the magnetic media on each disk drive Media Patrol checks are enabled by default on all disk arrays and spare drives Media Patrol is concerned with the media itself not the data recorded on the media If Media Patrol encounters a critical error it triggers PDM if PDM is enabled on the disk array Media Patrol checks all physical drives one at a time To run Media Patrol on your physical drives 1 Click on the Background Activities icon The list of background activities appears 2 Mouse over Media Patrol and click the Start button Pausing and Resuming a Media Patrol To pause or resume a Media Patrol 1 Click on the Background Activities icon The list of background activities appears 2 Mouse over Media Patrol and click the Pause or Resume button otopping a a Media Patrol To stop is to cancel the Media Patrol 1 Click on the Backgr
99. ormal Warning or Critical icon e Location Controller or Backplane e Healthy Threshold Enclosure Warning Temperature Threshold e Current Temperature 3 Click the X icon to close the information panel 34 Promise Technologies LOCATING AN ENCLOSURE If you have multiple Pegasus units and you want to verify which unit you are accessing in the PROMISE Utility use the Locate function To locate a enclosure 1 From the Device menu choose Component List 2 Mouse over the Enclosure then click the Locate button The Drive Power Status LEDs on all drive carriers blink blue and orange for one minute Running the Locate function to identify an enclosure blink blue and orange 35 Pegasus2 R4 R6 R8 Product Manual MANAGING BACKGROUND ACTIVITIES Background activity management includes e Viewing Current Background Activities e Adding a Scheduled Background Activity e Changing a Background Activity Schedule e Enabling or Disabling a Scheduled Background Activity e Deleting a Scheduled Background Activity e Media Patrol e Redundancy Check e Initialization e Rebuild e Migration PDM Background activities perform a variety of preventive and remedial functions on your physical drives disk arrays logical drives and other components You can run a background activity immediately or schedule it to run at a later time Scheduling options are described below
100. ot possible the system adjusts for the size differences by reducing or coercing the capacity of the larger drives to match the smaller ones With Pegasus you can choose to enable capacity coercion and any one of four methods Enable capacity coercion and choose the method in the Controller Settings menu See Making Controller Settings on page 25 The choices are e GB Truncate Default Reduces the useful capacity to the nearest 1 000 000 000 byte boundary e 10GB Truncate Reduces the useful capacity to the nearest 10 000 000 000 byte boundary e Group Rounding Uses an algorithm to determine how much to truncate Results in the maximum amount of usable drive capacity e Table Rounding Applies a predefined table to determine how much to truncate Capacity coercion also affects a replacement drive used in a disk array Normally when an physical drive fails the replacement drive must be the same capacity or larger However the capacity coercion feature permits the installation of a replacement drive that is slightly smaller within 1 gigabyte than the remaining working drive For example the remaining working drives can be 80 5 GB and the replacement drive can be 80 3 since all are rounded down to 80 GB This permits the smaller drive to be used Without capacity coercion the controller does not permit the use of a replacement physical drive that is slightly smaller than the remaining working drives 117 Pegasus
101. ou do not move all of the physical drives to their new locations the PROMISE Utility displays an incomplete array When the PROMISE Utility discovers an incomplete array it displays a dialog box asking you to e Click the OK button to accept the incomplete array e Click the Cancel button to reject the incomplete array Before you accept the incomplete array be sure all of the physical drives are present and that their drive carriers are properly installed into the subsystem See Replacing a Physical Drive on page 125 If you choose to accept the incomplete array Click OK in the incomplete array dialog box N Check the operational status of the logical drives in the array e Ifthe logical drives are Critical proceed with a rebuild e If the logical drives are Offline contact Technical Support See Contacting Technical Support on page 140 ad Restore your data from a backup source 132 Promise Technologies If you choose NOT to accept the incomplete array 1 Cancel in the incomplete array dialog box 2 Doone ofthe following e Delete the array This action deletes all logical drives on the array e Replace the missing physical drive UNREADABLE Disk WARNING Your Pegasus logical drive displays on the computer s desktop as a removable drive icon right If your computer s operating system recognizes a logical drive but cannot access it the computer might display a warning message See
102. ound Activities icon The list of background activities appears 2 Media Patrol and click the Stop button 3 Inthe Confirmation box type the word confirm in the field provided and click the Confirm button 55 Pegasus2 R4 R6 R8 Product Manual MANAGING Disk ARRAYS Disk array management includes e Viewing a List of Disk Arrays e Viewing Disk Array Information e Creating a Disk Array Manually e Creating a Disk Array and Logical Drive with the Wizard e Making Disk Array Settings e Locating a Disk Array e Deleting a Disk Array e Preparing a Disk Array for Transport e Rebuilding a Disk Array Also see Disk Array and Logical Drive Problems on page 129 Viewine A List or Disk Arrays To view a list of disk arrays do one of the following actions e From the Dashboard window click the Disk Array link e From the Storage menu choose Disk Array The list of disk arrays appears Each disk array lists e ID DAO DAI etc e Alias If assigned e Status Normal Degraded or Incomplete physical drive missing icon e Capacity Data capacity of the array e Free Capacity Unconfigured or unused capacity on the physical drives e Media Patrol Enabled or disabled on this array Number of Logical Drives The number of logical drives on this array 56 Promise Technologies Viewine Disk Array INFORMATION To view disk array information
103. replaces the revertible spare Target physical drives are identified by their physical drive ID number 5 Click the Confirm button PAUSING AND RESUMING A TRANSITION pause or resume Transition 1 Click on the Background Activities icon The list of background activities appears 2 Mouse over Transition and click the Pause or Resume button STOPPING PAUSING OR RESUMING A TRANSITION stop is to cancel a Transition 1 Click on the Background Activities icon The list of background activities appears 2 Transition and click the Stop button 3 Click the Confirm button 87 Pegasus2 R4 R6 R8 Product Manual TECHNOLOGY BACKGROUND This chapter covers the following topics Disk Arrays Logical Drives Formatting Logical Drives Spare Drives RAID Controllers 88 Promise Technologies Disk ARRAYS Disk array technology includes Media Patrol PDM Media PATROL Media Patrol is a routine maintenance procedure that checks the magnetic media on each disk drive Media Patrol checks all physical drives assigned to disk arrays and spare drives Media Patrol does not check unconfigured drives Media Patrol checks are enabled by default on all disk arrays and spare drives You can disable Media Patrol in the disk array and spare drive settings however that action is not recommended Unlike Synchronization and Redundancy Check Media Patrol is concerned with the
104. riggered automatically by Media Patrol See PDM on page 35 To run PDM on a logical drive 1 Click on the Background Activities icon The list of background activities appears 2 Mouse over PDM and click the Start button 3 Choose a Source Physical Drive The Source Physical Drive is the drive suspected of possible failure Source Physical Drives are identified by the disk array number and their sequence number in the disk array 4 Choose a Target Physical Drive The Target Physical Drive is the replacement drive Target physical drives are identified by their physical drive ID number 5 Click the Confirm button PAusiNc AND REsUMING PDM pause or resume 1 Click on the Background Activities icon The list of background activities appears 2 Mouse over PDM and click the Pause or Resume button SroPPING PDM To stop is to cancel PDM 1 Click on the Background Activities icon The list of background activities appears 2 and click the Stop button 3 Click the Confirm button 8 Pegasus2 R4 R6 R8 Product Manual MANAGING SPARE DRIVES Spare drive management includes e Viewing a List of Spare Drives below e Creating a Spare Drive Manually e Making Spare Drive Settings e Running Spare Check e Deleting a Spare Drive e Running a Transition ViEWING A List or Spare Drives To view a list of spare drives do one of the following action
105. rmation PROMISE E Support https support PROMISE com PROMISE web site http Awww PROMISE com When you contact us please have the following information available e Product model and serial number e BIOS firmware and driver version numbers Adescription of the problem situation e System configuration information including motherboard and CPU type hard drive models SAS SATA ATA ATAPI drives amp devices and other controllers Return the product to your dealer or retailer or contact Promise technical support for instructions before shipping the product 140 United States 580 Cottonwood Drive Milpitas Ca 95035 USA Technical Support E Support https support PROMISE com Web site http www PROMISE com Australia Technical Support E Support https support PROMISE com Web site http www PROMISE com EMEA Netherlands ocience Park Eindhoven 5228 0692 EG Son The Netherlands Technical Support E Support https support PROMISE com Web site http www PROMISE com Austria Technical Support E Support https support PROMISE com Web site http www PROMISE com France Technical Support E Support https support PROMISE com Web site http www PROMISE com Germany Europaplatz 9 44269 Dortmund Germany Technical Support E Support https support PROMISE com Web site http www PROMISE com Sweden Technical Support E Support https support PROMISE com Web site h
106. rtition and format operation new removable drive icons each representing one logical drive appear on your desktop right Your logical drives are ready to use 110 Promise Technologies SPARE DRIVES opare drive technology includes e Definition page 92 e Options page 92 e Requirements page 92 e Transition page 93 DEFINITION A spare drive is a physical drive that you designate to automatically replace the failed physical drive in a disk array See Creating a Spare Drive Manually on page 69 The general recommendation is to e Provide at least one spare drive e Configure the spares as global revertible spare drives OPTIONS There are several options you can specify for a spare drive e System Options Revertible Returns to its spare drive assignment after you replace the failed physical drive in the disk array and run the Transition function e Media Patrol By default Media Patrol runs on spare drives unless you disable it e Spare Type e Global Can be used by any disk array e Dedicated Can be used only by the assigned disk array e Media Type type of physical drive e Hard Disk Drive HDD e Solid State Drive SSD 111 Pegasus2 R4 R6 R8 Product Manual REQUIREMENTS The spare drive must e Have adequate capacity to replace the largest physical drive in your disk arrays e the same media type as the physical drives in your disk arrays A revertible spare drive requ
107. s e From the Dashboard window click the Spare Drive link e From the Storage menu choose Spare Drive Spare Drive information displays including e ID SpareO Spare etc e Status Normal Rebuilding or Failed missing icon e Configurable Capacity Usable capacity of the spare drive e Physical Drive ID ID number of the physical drive chosen for this spare Revertible Yes No e Spare Type Global or Dedicated e Dedicated to Array ID number of the disk array to which the spare is dedicated 82 Promise Technologies VIEWING SPARE Drive INFORMATION To view spare drive information 1 Do one of the following actions e From the Dashboard window click the Spare Drive link e From the Storage menu choose Spare Drive The list of spare drives appears 2 Mouse over the spare drive you want then click the View button opare Drive information displays including e Spare Drive ID SpareO Spare etc e Physical Drive ID ID number of the physical drive chosen for this spare e Location Enclosure number and slot number e Model Number Make and model of the physical drive e Operational Status OK Rebuilding Failed or Missing e Spare Type Global or Dedicated e Physical Capacity Total data capacity of the spare drive e Revertible Yes or e Configurable Capacity Usable capacity of the spare drive e Spare Check Status Not Checked or Healthy e Media Patrol Enabled or
108. s are marked with red X e icon e Event icon Major event for the logical drive and a Warning event for the physical drive Under Background Activities no Rebuild takes place See Repairing below REPAIRING AN OFFLINE Disk ARRAY OR LOGICAL DRIVE RAID 1 1E 5 6 and 10 Logical Drives If a fault tolerant logical drive RAID 1 1E 5 6 and 10 goes Offline it may be possible to recover your data WARNING Take no further corrective action until you have consulted with Technical Support RAID 0 Logical Drives If a logical drive based on a non fault tolerant disk array RAID O goes offline all of the data on the logical drive is lost 130 Promise Technologies To recreate your logical drive 1 Identify the failed physical drive See Locating a Physical Drive on page 124 2 Replace the failed drive oee Replacing a Physical Drive on page 125 3 Ifthe disk array had more than one physical drive delete the disk array and re create it See Deleting a Disk Array on page 67 and Creating a Disk Array and Logical Drive with the Wizard on page 59 4 Restore the data from your backup source REBUILDING A Disk ARRAY When you rebuild a disk array you are actually rebuilding the data on one of its physical drives If there is no spare drive of adequate capacity you must replace the failed drive with an unconfigured physical drive then perform a Rebuild manually See Replacing a Physical Drive
109. s units must be running to provide access to your volumes and the data they contain If you shut down a Pegasus unit in the chain that unit and those below it are effectively disconnected from your computer Thunderbolt daisy chain connections iMac used for this example any Mac with a Thunderbolt port can be used Thunderbolt port Cable computer t Pegasus unit Thunderbolt ports Thunderbolt ports gt TE H EP Unit N gt Unit 2 Cable Pegasus unit to Pegasus unit If you shut down Pegasus unit 1 your connection to Pegasus unit 2 is lost 138 Promise Technologies PERFORMANCE MONITOR The Performance Monitor display can be useful for diagnosing performance issues that will not necessarily trigger any alerts to appear in the System Status display or event logs Or you can use it for testing performance of different drive types To display the Performance Monitor information choose Performance Monitor from the Admin drop down menu in the Menu Bar Note that it is necessary to unlock the interface before the option can be selected Subsystem Information amp Events x H QB Background Activities Dashboard Wizard Physical Drive Disk Array Logical Drive Firmware Update Model Pegasus2 R6 Bl Performance Monitor Gu System Status E E 5 Restore Factory Default Note You must unlock the PROMISE Utility interface to allow selection
110. se a Write cache Policy Write Back and Write Through Thru are available 4 Click the Save button For more information see Read Cache Policy and Write Cache Policy on page 116 73 Pegasus2 R4 R6 R8 Product Manual Viewine Locicat Drive CHECK TABLES This feature enables you to view error tables Use this information to evaluate the integrity of the logical drive and to determine whether corrective action is needed To view logical drive check tables 1 Doone of the following actions e Click the Logical Drive icon e From the Storage menu choose Logical Drive The list of logical drives appears 2 Mouse over the logical drive you want then click the Check Table button 3 Choose an option e errors The default choice e Read Check Read errors for this logical drive e Write Check Write errors for this logical drive e Inconsistent Block Inconsistent blocks for this logical drive Mirror data for RAID levels 1 1E and 10 or Parity data for RAID levels 5 and 6 Identified by the Redundancy Check The Check Table lists e Table Type Read Check Write Check or Inconsistent Block e Start Logical Block Address LBA of the first block for this entry e Count Number of errors or continuous blocks starting from this LBA 4 Click the X icon to close the information panel To clear the check tables see Clearing Statistics on page 26 CREATING A LocicaL Drive MANUALLY This featur
111. settings as required Check the Revertible box if you want a revertible spare drive A revertible spare drive returns to its spare drive assignment after you replace the failed physical drive in the disk array and run the Transition function Global Can be used by any disk array Dedicated to newly created disk array The disk array you are now creating 2 Inthe Select Physical Drives diagram click a drive to choose it for your spare The drive carrier turns blue when you click it The physical drive s ID number appears in the field below the diagram 3 Click the Next button to continue The Summary screen displays Task 4 Summary 1 Review your choices of disk array logical drives and spare drive To make a change click the Back button to reach the appropriate screen To accept click the Submit button The disk array logical drive and spare drive take a few moments to create 2 Click the Finish button to close the Wizard 64 Promise Technologies Formatting your Logical Drives If you left the Format box checked under Task 2 Logical Drive Creation your logical drives are formatted automatically If you UNchecked the Format box you must format your logical drives manually When the PROMISE Utility has finished the partition and format operation new removable drive icons each representing one logical drive appear on your desktop right When you see the icon your logical drive is ready to use
112. signed to this logical drive RAID 5 amp 6 Algorithm Pertains to RAID 5 and 6 e Codec Scheme Pertains to some RAID levels Serial No Serial number assigned to this logical drive e From the Storage menu choose Logical Drive The list of logical drives appears Mouse over the logical drive you want then click the View button Click the Statistics tab Promise Technologies 4 Logical Drive statistics display including e Data Transferred In megabytes e Requests e Read Data Transferred In megabytes e Non Read Write I O Requests e Write Data Transferred In megabytes e Read I O Requests e Errors e Write I O Requests e Non Read Write Errors e Statistics Start Time e Read Errors e Statistics Collection Time e Write Errors 5 Click the X icon to close the statistics panel To clear the check tables see Clearing Statistics on page 26 Making Locicat Drive SETTINGS To make logical drive settings 1 Doone of the following actions e Click the Logical Drive icon e From the Storage menu choose Logical Drive The list of logical drives appears 2 Mouse over the logical drive you want then click the Settings button 3 setting changes as required e Enter change or delete the alias the Alias field Maximum of 32 characters letters numbers space between characters and underline e Choose a Read cache Policy Read Cache Read Ahead and No Cache are available e Choo
113. sing the Power Button the Power Button turns orange It takes about 30 seconds to start the Pegasus2 unit Pegasus2 R4 R6 R8 Product Manual INSTALLING THE SOFTWARE The Pegasus2 unit ships ready to use without configuration or set up However it is a good idea to install the PROMISE Utility software even if you do not plan to make any changes to device configuration The utility is useful for monitoring the system and getting firmware updates The utility is necessary if you plan to change the default RAID configuration Pegasus2 is shipped with a RAID 5 or if you will swap out any of the hard disks shipped with the device The software utility installation package is located on the Pegasus2 Follow the instructions below to install the utility To install the Pegasus2 Software Utility 1 Double click on the Pegasus2 icon on your desktop to view the device contents oee example to right 2 Find the file PROMISE Utility 318000018 dmg and double click on it to mount the virtual drive containing the installation software package JR Promise Utility 318000009 R Promise Utility 318000 3 Double click on the PROMISE Utility 318000018 pkg file to begin the software installation Install Promise Pegasus Software Welcome to the Promise Pegasus Software Installer 6 Introduction You will be guided through the steps necessary to install this software The version number of the dmg file an
114. sk array 1 Do one of the following actions e From the Dashboard window click the Disk Array link e From the Storage menu choose Disk Array 2 Mouse over the disk array you want then click the Delete button 3 In the Confirmation box type the word confirm in the field provided and click the Confirm button PREPARING A Disk ARRAY FOR TRANSPORT This feature prepares the physical drives that make up the disk array to be removed from the enclosure and installed in a different location To prepare a disk array for transport 1 Doone of the following actions e From the Dashboard window click the Disk Array link e From the Storage menu choose Disk Array 2 Mouse over the disk array you want then click the Transport button 3 In the Confirmation box type the word confirm in the field provided and click the Confirm button The disk array status changes to Transport Ready 4 Remove the physical drives and install them in their new location See Replacing a Physical Drive on page 125 for more information 67 Pegasus2 R4 R6 R8 Product Manual REBUILDING A Disk ARRAY When you rebuild a disk array you are actually rebuilding the data on one of its physical drives If there is no spare drive of adequate capacity you must replace the failed drive with an unconfigured physical drive then perform a Manual Rebuild On the carrier with the failed drive the Drive Power Status LED is red and the Drive Activi
115. ssage appears click the View button to see Spare Check Status 85 Pegasus2 R4 R6 R8 Product Manual DELETING A SPARE DRIVE This action requires Administrator or a Super User privileges To delete a spare drive 1 From the Dashboard window click the Spare Drive link The list of spare drives appears 2 Mouse over the spare drive you want then click the Delete button 3 the Confirmation box type the word confirm in the field provided and click the Confirm button RUNNING A TRANSITION ON A SPARE DRIVE Transition is the process of replacing a revertible spare drive that is currently part of a disk array with an unconfigured physical drive or a non revertible spare You must specify an unconfigured physical drive of the same or larger capacity and same media type as the revertible spare drive Also see Transition on page 112 and Transition on page 46 86 Promise Technologies RUNNING A TRANSITION To run a transition on a revertible spare drive 1 Click on the Background Activities icon The list of background activities appears 2 Mouse over Transition and click the Start button 3 Choose a Source Physical Drive The Source Physical Drive is the revertible spare drive that is now part of the disk array Source Physical Drives are identified by the disk array number and their sequence number in the disk array 4 Choose a Target Physical Drive The Target Physical Drive is the drive that
116. st possible read write speed e Spare Drive Check box to create a hot spare drive R6 and R8 only Number of Logical Drives Enter a number of logical drives to create Application Type Choose how the storage is used 4 the Number of Logical Drives field type the number of logical drives you want to make from this disk array Pegasus supports 1 to 32 logical drives 61 Pegasus2 R4 R6 R8 Product Manual 5 From the Application Type dropdown menu choose an application that best describes your intended use for the logical drives e File Server default e Video Stream e Transaction Data e Transaction Log e Other 6 Click the Next button to continue The Summary dialog box appears with information on the disk arrays logical drives and spare drives you are about to create See example below The Summary dialog box Pegasus2 R6 g 8 B Dashboard Wizard Physical Drive Disk Array Logical Drive Subsystem Information Events Background Activities 2 Express Configuration Express Configuration Summary Express configuration was completed successfully Disk Array Information Number of Physical Drives 5 Physical Drive IDs 123 4 5 Total Configurable Capacity 395 GB Number of Logical Drives 1 Disk Array Logical Drives RAID Level Capacity Sector Stripe 1 RAIDS 294 30GB 512 Bytes 128KB Spare Drives PD ID Type Revertible Media Type There are no configured spare dr
117. sus or Pegaus2 models 15 Pegasus2 R4 R6 R8 Product Manual To CREATE A Disk ARRAY AND LOGICAL DRIVE The Pegasus2 is shipped with HDD installed and a RAID array configured so it is not necessary to do this yourself However if you want to change the disk drives or configure a different RAID you will need to create an array and logical drive to use the storage Important The Pegasus2 does NOT require any configuration to use the RAID storage It is shipped ready to use If you are installing new disk drives use the Wizard to create a disk array and logical drive The procedures are described in the next chapter To see the Wizard menu launch the PROMISE Utility in the Dashboard menu under System Status click the Disk Array link See The PROMISE Utility interface with the Dashboard displayed on page 20 The Wizard dialog box opens with three configuration methods Wizard dialog box Pegasus2 R6 3 3 93 ta d Dashboard Wizard Physical Drive Disk Array Logical Drive Subsystem Information Events Background Activities 6 Wizard The configuration can be done in one of the following ways Automatic This option enables you to create a new disk array following a default set of parameters proposes a disk array and logical drive arrangement You can accept or reject the proposed arrangement but you cannot modify it ej Express You choose the parameters for a new disk array by specifying the characteristics
118. th the Dashboard displayed on page 20 CLOSING There are two ways close the PROMISE Utility PROMISE Utility icon Promise Utility Click the PROMISE Utility dropdown menu and choose Quit PROMISE Utility e Press 88 Q 18 Promise Technologies UNLOCKING THE Ul By default the UI is locked to prevent unauthorized changes to your RAID system When the UI is locked you cannot create logical drives or change settings on the Pegasus2 unit To unlock the UI 1 Atthe lower left screen of the PROMISE Utility window click the closed lock icon Click the lock to make changes The PROMISE Utility password dialog box opens 2 Type your password to allow Promise Utility A to make changes l Gy Name demo b Details E d Cancel ED ai Type your Mac computer password into the Password field and click the OK button The lock icon changes to open and you can now add and delete logical drives make settings run background activities and update your Pegasus2 system DisPLAYiNG Mu riPLE PEcAsUs PEGAsUs2 UNITS The PROMISE Utility displays a separate window for each Pegasus unit connected by Thunderbolt cable and powered up To view a list of the Pegasus or Pegasus2 units click the View menu To display a Pegasus or Pegasus2 unit in the PROMISE Utility click the View menu and choose unit you want to see Promise Utility 777 Dashboard Device Hide Toolbar XET Customize Toolbar
119. the GNU General Public License GPL for the exact terms and conditions of this license at www gnu org The GPL source code incorporated into the product is available for free download from our web site at http www PROMISE com Subject to GPL you may re use re distribute and modify the GPL source code Note that with respect solely to the GPL Software no warranty is provided we do not offer direct support for the distribution 151
120. ting one logical drive appear on your desktop right When you see the icon your logical drive is ready to use Wizard Advanced or Manual Creation Panie RAD When you create your logical drives using the Wizard Advanced option the Format option is enabled by default When the PROMISE Utility has finished the format operation new removable drive icons each representing one logical drive appear on your desktop right When you see the icon your logical drive is ready to use For more information see Creating Disk Array and Logical Drive with the Tu Wizard on page 47 and Creating a Logical Drive Manually on page 61 108 Promise Technologies PROMISE UTILITY WITH Custom SETTINGS To use your own format settings you must create your logical drives using the Wizard Advanced option or create your logical drives manually and you must UNcheck the Format box See Creating a Disk Array and Logical Drive with the Wizard on page 47 and Creating a Logical Drive Manually on page 61 To format your logical drives using the PROMISE Utility with your own settings 1 In the Logical Drive list mouse over the logical drive you want to format and click the Format button 2 Supply information as required e Optional Type a different name into the Volume Name field e Choose a partition from the Partition Type dropdown menu e Choose a format type from the Format Type dropdown menu e For Macintosh computers t
121. to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help Notice The changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate the equivalent VCCI ABA CT COREG KERA CHATSOCCeH CORBRPIVAVPTFLEVAYRRICMEL aa 5 Blo HED T EU VCCI B RAHE Z S77 zz J NA ASe 5 Ad ASH iv Promise Technologies WARNING Use the power cord included with the Pegasus2 R4 Pegasus2 R6 Pegasus2 R8 WARNING The fan contains hazardous moving parts Keep fingers and other body parts away Contents Pegasus2 R4 R6 R8 Product Manual CONTENTS ABOUT THIS GUIDE I INTRODUCTION TO PEGASUS2 1 ARCHITECTURE 2 PROTOCOL SUPPORT 2 Key BENEFITS 2 SPECIFICATIONS 3 HARDWARE 4 INSTALLATION AND SETUP 6 SUMMARY OF THE SETUP PROCEDURE 7 Pacxine List 7 CONNECT THE POWER CORD 8 Prcasus2 ro your Mac 9 INSTALLING THE SOFTWARE 10 POWER MODES O
122. ttp www PROMISE com Switzerland ITF Technical Support E Support https support PROMISE com Web site http www PROMISE com 141 Promise Technologies Pegasus2 R4 R6 R8 Product Manual Norway ITF Technical Support E Support https support PROMISE com Web site http www PROMISE com Belguim Technical Support E Support https support PROMISE com Web site http www PROMISE com Luxembourg Technical Support E Support https support PROMISE com Web site http www PROMISE com United Kingdom Technical Support E Support https support PROMISE com Web site http www PROMISE com Taiwan Technical Support E Support https support PROMISE com Web site http www PROMISE com China Room 1108 West Wing Shi Chuang Plaza 22 Information Road Shangdi IT Park Haidian District Beijing 100085 Fax 86 10 8857 8015 Technical Support E Support https support PROMISE com Web site http www PROMISE com 142 Korea Technical Support E Support https support PROMISE com Web site http www PROMISE com Hong Kong Technical Support E Support https support PROMISE com Web site http www PROMISE com Singapore Technical Support E Support https support PROMISE com Web site http www PROMISE com Japan 3F Mura Matsu Bldg 3 8 5 Hongo Bunkyo ku Tokyo 113 0033 Japan Technical Support E Support https support PROMISE com Web site http www
123. ty LED is dark Drive carrier LEDs for a dead or failed drive That is the physical drive you must replace PERFORMING A MANUAL REBUILD To perform a manual rebuild 1 Click on the Background Activities icon 2 Rebuild and click the Start button 3 From the Source Physical Drive dropdown menu choose a Source disk array and physical drive Arrays have an ID No Physical drives have a Seq No sequence number 4 From the Target Physical Drive dropdown menu choose a Target physical drive 5 In the Confirmation box type the word confirm in the field provided and click the Confirm button When the disk array is rebuilding e The disk array shows a green check icon and Rebuilding status e Logical drives under the disk array continue to show a yellow icon and Critical Rebuilding status e If the buzzer is enabled the Pegasus unit emits two quick beeps every five seconds When the beeps stop the rebuild is done 68 PAusiNG AND REsuMiING A REBUILD To pause or resume a Rebuild 1 Click on the Background Activities icon 2 Mouse over Rebuild and click the Pause or Resume button STOPPING A REBUILD stop or cancel a Rebuild 1 Click on the Background Activities icon 2 Mouse over Rebuild and click the Stop button 3 Click the Confirm button Also see Making Rebuild Settings on page 44 69 Promise Technologies Pegasus2 R4 R6 R8 Product Manual MANAGING LocicAL D
124. ured physical drive or a non revertible spare drive See Running a Transition on a Spare Drive on page 86 MAKING TRANSITION SETTINGS To make Transition settings 1 2 Click on the Background Activities icon Click the Settings button Click the Transition Rate dropdown menu and choose a rate e Low Fewer system resources to Transition more to data read write operations Medium Balances system resources between Transition and data read write operations e High More system resources to Transition fewer to data read write operations Click the Confirm button Click the X icon to close the background activities panel 46 Promise Technologies SYNCHRONIZATION Synchronization is automatically applied to logical drives when they are created Synchronization recalculates the redundancy data to ensure that the working data on the physical drives is properly in Sync Mouse over on the logical drive click the View button and look under Logical Drive Information beside the line that says Synchronized A Yes means the logical drive was synchronized See Viewing Logical Drive Information on page 71 MAKING SYNCHRONIZATION SETTINGS To make Synchronization settings 1 Click on the Background Activities icon 2 Click the Settings button 3 Click the Background Synchronization Rate dropdown menu and choose rate e Low Fewer system resources to Synchronization more to data read write operations e Me
125. ve the relevant user documentation from Apple for your Mac then follow the steps in the instructions below 1 Following the instructions for hard disk removal in the user documentation for your computer remove the hard disk drive you intend to install in the Pegasus2 This disk should be the primary drive on the Mac if you want to keep all the user information and settings 2 Remove any mounting hardware if any attached to the hard disk drive 3 Install the drive following instructions in Replacing a Physical Drive on page 125 4 drive will be recognized as soon as it is installed By default this drive will have Pass through status It will be separate from any array that currently exists on the Pegasus2 148 Promise Technologies 5 Launch the PROMISE Utility and click the Physical Drive menu link in the Dashboard You will see the new drive status as Pass Thru listed in the menu Launch the PROMISE Utility and click on the Physical Drive menu link in the Dashboard You will see the new drive status as Pass Thru listed the menu Physical Drive List in PROMISE Utility Pegasus2 R6 3 Dashboard Wizard Physical Drive Disk Array Logical Drive Subsystem Information Events Background Activities Physical Drive List Global Physical Drive Settings ID Status Model Number Type Location Configuration Capacity 1 ST3000DM001 1
126. vent of a replacement the replacement unit is under warranty for the remainder of the original warranty term from purchase date or 30 days whichever is longer PROMISE pays for outbound standard shipping charges only You must pay for any additional shipping options such as express shipping and return of the defective part or unit 147 Pegasus2 R4 R6 R8 Product Manual APPENDIX A Transferring A Physical Hard Disk From Mac To Pegasus2 Pegasus2 supports taking a hard disk out of a Mac computer and installing it as a pass through disk in the Pegasus2 enclosure When the procedure is completed the relocated pass through disk retains all the data and user information from the original Mac For example if you remove the internal hard disk labeled Mac and install it in Pegasus2 as a pass through disk the file system and all the user information including passwords permissions etc are carried over to the new Mac The only difference the user sees is the appearance of the icon for the pass through drive Instead of the internal hard drive icon the pass through drive appears as an attached drive orange in color with the same drive name used in the original Mac Note A Pass through Disk retains the file system and cannot be used as part of a RAID array on the Pegasus2 PASS THROUGH DISK PROCEDURE FOR If you want to remove a hard disk from a Mac and place it in the Pegasus2 as a pass through disk make sure you ha
127. y non infringement or otherwise PROMISE makes no warranty or representation concerning the suitability of any product for use with any other item You assume full responsibility for selecting products and for ensuring that the products selected are compatible and appropriate for use with other goods with which they will be used PROMISE does not warrant that any product is free from errors or that it will interface without problems with your computer system It is your responsibility to back up or otherwise save important data before installing any product and continue to back up your important data regularly No other document statement or representation may be relied on to vary the terms of this limited warranty PROMISE s sole responsibility with respect to any product is to do one of the following a replace the product with a conforming unit of the same or superior product b repair the product PROMISE shall not be liable for the cost of procuring substitute goods services lost profits unrealized savings equipment damage costs of recovering reprogramming or reproducing of programs or data stored in or used with the products or for any other general special consequential indirect incidental or punitive damages whether in contract tort or otherwise notwithstanding the failure of the essential purpose of the foregoing remedy and regardless of whether PROMISE has been advised of the possibility of such damages PROMISE is
128. y out of the unit then press the drive carrier back in until it locks oee Replacing a Physical Drive on page 125 4 Press the Power Button LED to power up the Pegasus unit 128 Promise Technologies Disk ARRAY AND LOGICAL Drive PROBLEMS Disk array and logical drive troubleshooting includes e Disk Array Degraded Logical Drive Critical e Disk Array Offline Logical Drive Offline e Repairing an Offline Disk Array or Logical Drive e Rebuilding a Disk Array e Incomplete Array e Unreadable Disk Warning Disk array problems typically result from a physical drive failure The most common problem is a degraded disk array The RAID controller can rebuild a degraded disk array See Rebuilding a Disk Array on page 131 Disk Array DrGRADED LocicAL Drive CRITICAL Disk arrays are made up of physical drives Logical drives are created on the disk array When one of the physical drives in a disk array fails e operational status of the disk array becomes Critical e operational status of the logical drives becomes Critical or Degraded e operational status of the physical drive becomes Dead or Offline The PROMISE Utility reports these conditions in the following places e Dashboard icon A yellow uu icon beside the disk arrays logical drives and physical drives under System Status e Physical Drive icon Physical drives are shown Dead or Offline and marked with red X w
129. you want Advanced You directly specify all parameters for a new disk array logical drives and spare drive a id Click the lock to prevent further changes Choose the best method for your situation See the table below Method Useroptions Suggestedforuserswhoare General parameters Familiar with data storage Individual parameters Data storage professionals page 63 16 Promise Technologies MANAGE WITH PROMISE UTILITY This chapter contains the following topics e Accessing the PROMISE Utility e the PROMISE Utility Interface Managing Subsystems e Managing the RAID Controller e Managing Background Activities e Managing Physical Drives e Managing Disk Arrays e Managing Logical Drives Managing Spare Drives The PROMISE Utility requires a Thunderbolt connection between your computer and the Pegasus unit See Connect Pegasus2 to your on page 9 The PROMISE Utility must be installed onto your computer before you can use it See Installing the software on page 10 17 Pegasus2 R4 R6 R8 Product Manual ACCESSING THE PROMISE UTILITY Accessing the PROMISE Utility includes e Opening and Closing e Unlocking the UI OPENING To open the PROMISE Utility double click the PROMISE Utility icon in the Macintosh Dock right The PROMISE Utility window opens and displays the Dashboard See The PROMISE Utility interface wi
130. you want then click the View button Physical drive information includes 3 Advanced information for physical drives includes 4 Physical Drive ID ID number ofthe physical drive Location Enclosure number and slot number Alias If assigned Physical Capacity Total capacity in GB Configurable Capacity Usable capacity in GB Used Capacity Capacity actually used in GB Block Size Typically 512 Bytes Operational Status OK is normal Stale PFA Dead Click the Advanced Information tab Write Cache Enabled or disabled Read Look Ahead Cache Enabled or disabled SMART Feature Set Yes or No SMART Self Test Yes or No SMART Error Logging Yes or No Command Queuing Support NCQ Click the X icon to close the information panel 49 Configuration Status Array number and sequence number spare number Model Number Make and model of the drive Drive Interface SATA 1 5Gb s or 3Gb s Serial Number Serial number of the drive Firmware Version Firmware version on the drive Protocol Version ATA ATAPI protocol version Command Queuing Enabled or disabled Queue Depth Number of commands Power Saving Level Supported by this drive Medium Error Threshold Drive Temperature Drive Reference Temperature ltems with an asterisk are adjustable under Viewing Physical Drive Statistics on page 50 Items with two asterisks

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