Dell PowerEdge Expandable RAID Controller 3 Guide de l'utilisateur

www.dell.com | support.dell.comDell™ PowerEdge™ ExpandableRAID Controller (PERC) 6/i,PERC 6/E and CERC 6/iUser’s GuideDell_PERC6.2_UG.book Page 1 We

10 ContentsDell_PERC6.2_UG.book Page 10 Wednesday, June 24, 2009 6:08 PM

100 Configuring and Managing RAID NOTE: The List View of the Virtual Disk Management screen displays different options from the Tree View. Space Allo

Configuring and Managing RAID 101Virtual Disk ActionsTable 6-4 describes the actions you can perform on virtual disks. For procedures you can use to p

102 Configuring and Managing RAID• Performing the Replace Member operation• Setting the LED to blink• Making a disk online or offline (unaffiliated wi

Configuring and Managing RAID 103RebuildSelect Rebuild to rebuild one or more failed physical disks. For information on performing a physical disk reb

104 Configuring and Managing RAIDController Management ActionsTable 6-6 describes the actions you can perform on the Ctrl Mgmt screen.Foreign Configur

Configuring and Managing RAID 105The section "Importing or Clearing Foreign Configurations Using the Foreign Configuration View Screen" on p

106 Configuring and Managing RAIDPerform the following steps to create global hot spares.1Press <Ctrl><N> to access the PD Mgmt screen.A l

Configuring and Managing RAID 1074Press the down-arrow key to select Remove Hot Spare from the list of actions and press <Enter>.The physical di

108 Configuring and Managing RAIDRestrictions and LimitationsThe following restrictions and limitations apply to the Replace Member operation:•The Rep

Configuring and Managing RAID 1093Press <F2> to display a menu of available actions.The Rebuild option is highlighted at the top of the menu.4Pr

WARNING: Safety Instructions 11WARNING: Safety InstructionsUse the following safety guidelines to help ensure your own personal safety and to help pro

110 Configuring and Managing RAIDAfter you enable the BIOS for a controller, perform the following steps to enable the boot support for that controlle

Configuring and Managing RAID 111Restoring Factory Default SettingsYou can use the Ctrl Mgmt menu screen to restore the default settings for the optio

112 Configuring and Managing RAIDDell_PERC6.2_UG.book Page 112 Wednesday, June 24, 2009 6:08 PM

Troubleshooting 113TroubleshootingTo get help with your Dell™ PowerEdge™ Expandable RAID Controller (PERC) 6 and Dell Cost-Effective RAID Controller (

114 TroubleshootingAdapter at Baseport xxxx is not respondingwhere xxxx is the baseport of the controllerIf the BIOS detects the controller but the co

Troubleshooting 115Memory/Battery problems were detected. The adapter has recovered, but cached data was lost. Press any key to continue.This message

116 TroubleshootingForeign configuration(s) found on adapter. Press any key to continue, or ’C’ to load the configuration utility or ’F’ to import for

Troubleshooting 117Invalid SAS topology detected. Please check your cable configurations, repair the problem, and restart your system.The SAS cables f

118 TroubleshootingSome configured disks have been removed from your system or are no longer accessible. Check your cables and ensure all disks are pr

Troubleshooting 119Table 7-2 describes the BBU-related error messages and warnings.Virtual Disks DegradedA redundant virtual disk is in a degraded sta

12 WARNING: Safety Instructions• Operate the product only from the type of external power source indicated on the electrical ratings label. If you are

120 TroubleshootingMemory ErrorsMemory errors can corrupt cached data, so the controllers are designed to detect and attempt to recover from these mem

Troubleshooting 121General ProblemsTable 7-3 describes general problems you might encounter, with suggested solutions.Table 7-3. General ProblemsProbl

122 TroubleshootingPhysical Disk Related IssuesTable 7-4 describes physical disk-related problems you might encounter, with suggested solutions.Table

Troubleshooting 123Physical Disk Failures and RebuildsTable 7-5 describes issues related to physical disk failures and rebuilds.Table 7-5. Physical Di

124 TroubleshootingRebuilding a physical disk after one of them is in a failed state.If you have configured hot spares, the PERC 6 controller automati

Troubleshooting 125SMART ErrorsTable 7-6 describes issues related to the Self-Monitoring Analysis and Reporting Technology (SMART). SMART monitors the

126 TroubleshootingReplace Member ErrorsTable 7-7 describes issues related to the Replace Member feature. NOTE: For more information about the Repla

Troubleshooting 127Linux Operating System ErrorsTable 7-8 describes issues related to the Linux operating system.Table 7-8. Linux Operating System Err

128 TroubleshootingDriver does not auto-build into new kernel after customer updates.This error is a generic problem for Dynamic Kernel Module Support

Troubleshooting 129Controller LED IndicatorsThe external SAS ports on the PERC 6/E adapter have a port status LED per x4 SAS port. This bi-color LED d

WARNING: Safety Instructions 13In addition, note these safety guidelines when appropriate:• When you disconnect a cable, pull on its connector or on i

130 TroubleshootingDrive Carrier LED IndicatorsThe LED on the physical disk carrier indicates the state of each physical disk. Each drive carrier in y

Troubleshooting 131Green/amber flashing(Green On 500 ms / Amber On 500 ms, Off 1000 ms)Predicted failure reported by driveGreen flashing(Green On 3000

132 TroubleshootingDell_PERC6.2_UG.book Page 132 Wednesday, June 24, 2009 6:08 PM

Regulatory Notices 133Regulatory NoticesFor additional regulatory information, please go to the Regulatory Compliance Homepage on www.dell.com at the

134 Regulatory NoticesDell_PERC6.2_UG.book Page 134 Wednesday, June 24, 2009 6:08 PM

Corporate Contact Details (Taiwan Only) 135Corporate Contact Details (Taiwan Only)Pursuant to Article 11 of the Commodity Inspection Act, Dell provide

136 Corporate Contact Details (Taiwan Only)Dell_PERC6.2_UG.book Page 136 Wednesday, June 24, 2009 6:08 PM

Glossary 137GlossaryAAdapterAn adapter enables the computer system to access peripheral devices by converting the protocol of one bus or interface to

138 GlossaryBattery Backup Unit (BBU)The battery backup unit protects the integrity of the cached data on the controller by providing backup power if

Glossary 139CachingThe process of utilizing a high speed memory buffer, referred to as a “cache,” in order to speed up the overall read or write perfo

14 WARNING: Safety InstructionsYou can also take the following steps to prevent damage from electrostatic discharge:• When unpacking a static-sensitiv

140 GlossaryDisk ArrayA collection of disks from one or more disk subsystems combined using a configuration utility. The utility controls the disks an

Glossary 141DKMSAcronym for Dynamic Kernel Module Support. Designed by Dell™, DKMS creates a framework in which kernel-dependent module source can res

142 GlossaryFFailed Physical DiskA physical disk that has ceased to function, that consistently functions improperly, or that is inaccessible.Fault To

Glossary 143GGBAcronym for gigabyte(s). A gigabyte equals 1,024 megabytes or 1,073,741,824 bytes (2^30 bytes).HHost SystemAny system on which the RAID

144 GlossaryIInitializationThe process of writing zeros to the data fields of a virtual disk and, in fault tolerant RAID levels, generating the corres

Glossary 145Logical DiskA set of contiguous chunks on a physical disk. Logical disks are used in array implementations as constituents of logical volu

146 GlossaryNNon Read AheadNon read ahead is a cache read policy. If you select Non read ahead in the BIOS Configuration Utility, the controller does

Glossary 147Online Capacity ExpansionOperation to add capacity to an existing virtual disk by adding an additional physical disk while the host system

148 GlossaryPHYThe interface required to transmit and receive data packets transferred across the serial bus.Each PHY can form one side of the physica

Glossary 149ProtocolA set of formal rules describing how to transmit data, generally across a network or when communicating with storage subsystems. L

Overview 15OverviewThe Dell™ PowerEdge™ Expandable RAID Controller (PERC) 6 family of controllers and the Dell Cost-Effective RAID Controller (CERC) 6

150 GlossaryThe Dell OpenManage™ storage management application configures the disks after you have installed the operating system. Storage Management

Glossary 151Redundant Virtual DiskA redundant virtual disk is one which has redundant data on physical disks in the disk group that can be used to reb

152 GlossaryRPMAcronym for Red Hat Package Manager. RPM is a software manager used to install, remove, query, and verify the software on your system.

Glossary 153SMARTAcronym for Self-Monitoring Analysis and Reporting Technology. The self-monitoring analysis and reporting technology (SMART) feature

154 GlossarySSPAcronym for Serial SCSI Protocol. SSP enables communication with other SAS devices. Each PHY on the SAS controller can function as an S

Glossary 155VVirtual DiskA virtual disk refers to storage created by a RAID controller from one or more physical disks. Although a virtual disk may be

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Index 157IndexBbackground initialization, 25, 137stopping, 108baseport, 137batteryinstalling transportable battery backup, 46management, 30removing fr

158 IndexEelectrostatic discharge. See ESDESD, 13Ffault tolerance, 34features, 34foreign configuration, 104Foreign Configuration View, 104Hhot swap, 1

Index 159management, 101post error messages, 113RRAID, 143-144configuration, 77configuration and management, 77configuration functions, 83configuratio

16 OverviewOperating System SupportThe PERC 6 and CERC 6/i controllers support the following operating systems:• Citrix® XenServer® Dell Edition• Micr

160 IndexWWindows, 63drivers, 63updating drivers, 68Windows XP DriverInstallation on an Existing System, 76write policy, 84Dell_PERC6.2_UG.book Page

Overview 17Summary of RAID Levels• RAID 0 uses disk striping to provide high data throughput, especially for large files in an environment that requir

18 OverviewFor example, in a four-disk system using only disk striping (used in RAID 0), segment 1 is written to disk 1, segment 2 is written to disk

Overview 19Figure 2-2 shows an example of disk mirroring.Figure 2-2. Example of Disk Mirroring (RAID 1)Spanned RAID LevelsSpanning is a term used to d

Notes, Cautions, and Warnings NOTE: A NOTE indicates important information that helps you make better use of your system. CAUTION: A CAUTION indicate

20 OverviewFigure 2-3. Example of Distributed Parity (RAID 5) NOTE: Parity is distributed across multiple physical disks in the disk group.Figure 2-4.

About PERC 6 and CERC 6/i Controllers 21About PERC 6 and CERC 6/i ControllersThis section describes the features of the Dell™ PowerEdge™ Expandable RA

22 About PERC 6 and CERC 6/i ControllersBattery Backup UnitYes, TransportableYesbYes NoCache Memory256-MB DDRII cache memory size.Optional 512-MB DIMM

About PERC 6 and CERC 6/i Controllers 23Multiple Virtual Disks per ControllerUp to 64 virtual disks per controllerUp to 64 virtual disks per controlle

24 About PERC 6 and CERC 6/i Controllers NOTE: The maximum array size is limited by the maximum number of drives per disk group (32), the maximum num

About PERC 6 and CERC 6/i Controllers 25A SMART failure is also referred to as a predicted failure. There are numerous factors that relate to predicte

26 About PERC 6 and CERC 6/i ControllersFull Initialization of Virtual DisksPerforming a Full Initialization on a virtual disk overwrites all blocks a

About PERC 6 and CERC 6/i Controllers 27Disk RoamingThe PERC 6 and CERC 6/i controllers support moving physical disks from one cable connection or bac

28 About PERC 6 and CERC 6/i ControllersPerform the following steps to use disk migration:1Turn off the system that contains the source controller.2Mo

About PERC 6 and CERC 6/i Controllers 29Migrating Virtual Disks from SAS 6/iR to PERC 6 and CERC 6/i NOTE: The supported operating systems listed in

Contents 3Contents1 WARNING: Safety Instructions . . . . . . . . 11SAFETY: General . . . . . . . . . . . . . . . . . . 11SAFETY: When Working Insi

30 About PERC 6 and CERC 6/i Controllers6Exit the BIOS Configuration Utility and reboot the system.7Ensure all the latest drivers for PERC 6 or CERC 6

About PERC 6 and CERC 6/i Controllers 31Battery Learn CycleLearn cycle is a battery calibration operation performed by the controller periodically to

32 About PERC 6 and CERC 6/i ControllersVirtual Disk Write Cache PoliciesThe write cache policy of a virtual disk determines how the controller handle

About PERC 6 and CERC 6/i Controllers 33Conditions Under Which Write-Through is EmployedWrite-Through caching is used under all conditions in which th

34 About PERC 6 and CERC 6/i ControllersRAID level. When a RLM/OCE operation is complete, a reboot is not necessary. For a list of RAID level migratio

About PERC 6 and CERC 6/i Controllers 35 NOTE: The total number of physical disks in a disk group cannot exceed 32. NOTE: You cannot perform RAID le

36 About PERC 6 and CERC 6/i ControllersFault Tolerance FeaturesTable 3-3 lists the features that provide fault tolerance to prevent data loss in case

About PERC 6 and CERC 6/i Controllers 37Failed Physical Disk DetectionThe controller automatically detects and rebuilds failed physical disks when you

38 About PERC 6 and CERC 6/i ControllersAutomatic Replace Member with Predicted FailureA Replace Member operation can occur when there is a SMART pred

About PERC 6 and CERC 6/i Controllers 393Patrol Read adjusts the amount of controller resources dedicated to Patrol Read operations based on outstandi

4 ContentsInitializing Virtual Disks . . . . . . . . . . . . . . . . . 25Background Initialization. . . . . . . . . . . . . . 25Full Initializatio

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Installing and Configuring Hardware 41Installing and Configuring Hardware WARNING: Only trained service technicians are authorized to remove the syst

42 Installing and Configuring Hardware5Align the PERC 6/E adapter to the PCI-E slot you have selected. CAUTION: Never apply pressure to the adapter m

Installing and Configuring Hardware 43Figure 4-2. Installing a PERC 6/i Adapter7Tighten the bracket screw, if any, or use the system’s retention clips

44 Installing and Configuring Hardware9Connect the cable from the external enclosure to the controller. For more information, see Figure 4-3.Figure 4-

Installing and Configuring Hardware 45Figure 4-4. Connecting Cables to the Controller11Replace the cover of the system. For more information on closin

46 Installing and Configuring HardwareInstalling the Transportable Battery Backup Unit (TBBU) on PERC 6/E CAUTION: The following procedure must be pe

Installing and Configuring Hardware 474Place the PERC 6/E adapter on a flat, clean, and static–free surface.5Mount the memory module in the controller

48 Installing and Configuring HardwareFigure 4-6. Installing a DIMMTransferring a TBBU Between ControllersThe TBBU provides uninterrupted power supply

Installing and Configuring Hardware 49Perform the following steps to replace a failed controller with data in the TBBU:1Perform a controlled shutdown

Contents 5Redundant Path With Static LoadBalancing Support . . . . . . . . . . . . . . . . . 37Using Replace Member and RevertibleHot Spares . . . .

50 Installing and Configuring Hardware3Locate the PERC 6/E adapter in the system and disconnect the external cables from the adapter. NOTE: The locat

Installing and Configuring Hardware 515Determine whether the Dirty Cache LED on the controller is illuminated. For location of the LED, see Figure 4-8

52 Installing and Configuring HardwareRemoving the DIMM and Battery from a PERC 6/E Adapter NOTE: The TBBU on the PERC 6/E adapter consists of a DIMM

Installing and Configuring Hardware 53Figure 4-9. PERC 6/E Adapter Dirty Cache LED Location5Press down on the tabs at each edge of the DIMM slot until

54 Installing and Configuring HardwareFigure 4-10. Removing the TBBUDisconnecting the BBU from a PERC 6/i Adapter or a PERC 6/i Integrated Controller

Installing and Configuring Hardware 551Perform a controlled shutdown on the system in which the PERC 6/i is installed.2Disconnect the system from the

56 Installing and Configuring HardwareIf the connection between an Out port on the controller and an In port on an enclosure fails, an alternate path

Installing and Configuring Hardware 57Figure 4-13 displays Redundant path Storage Configuration with three enclosuresFigure 4-13. Redundant Path Suppo

58 Installing and Configuring HardwarePerform the following steps to configure the hardware to utilize redundant paths on the PERC 6/E adapter:1Set up

Installing and Configuring Hardware 59Removing and Installing the PERC 6/i and CERC 6/i Integrated Storage Controller Cards in Dell Modular Blade Syst

6 Contents5 Driver Installation . . . . . . . . . . . . . . . . . 63Installing Windows Drivers . . . . . . . . . . . . . . . 64Creating the Drive

60 Installing and Configuring HardwareFigure 4-14. Removing and Installing the Storage Controller CardInstalling the Storage Controller CardTo install

Installing and Configuring Hardware 615Close the top cover of the Modular Blade system. For more information on closing the top cover of the Modular B

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Driver Installation 63Driver InstallationThe Dell™ PowerEdge™ Expandable RAID Controller (PERC) 6 and Dell Cost-Effective RAID Controller (CERC) 6/i f

64 Driver InstallationInstalling Windows DriversCreating the Driver MediaPerform the following steps to create the driver media:1Browse to the downloa

Driver Installation 654From the list of drivers displayed, select the driver you require. Select the self-extracting zip file and click Run. Copy the

66 Driver Installation3Press the <S> key.The system prompts for the driver media to be inserted. NOTE: The driver can be provided using a prope

Driver Installation 67Installing a Windows Server 2003, Windows Server 2008, Windows Vista, or Windows XP Driver for a New RAID Controller NOTE: PERC

68 Driver InstallationUpdating an Existing Windows Server 2003, Windows Server 2008, Windows XP, or Windows Vista Driver NOTE: Close all applications

Driver Installation 6912Click Next and continue the installation steps in the Wizard.13Click Finish to exit the wizard and reboot the system for the c

Contents 76 Configuring and Managing RAID. . . . . . . 77Dell OpenManage Storage Management . . . . . . . . 77Dell SAS RAID Storage Manager . . . .

70 Driver Installation3Use the dd command to create a driver update disk. Use the appropriate image for the purpose.dd if=<name of the dd image fil

Driver Installation 71Installing Red Hat Enterprise Linux Operating System Using the Driver Update DiskettePerform the following steps to install Red

72 Driver Installation6Click OK.If you want to install from another driver update medium, continue with the following steps.7The system displays the m

Driver Installation 73Upgrading the KernelWhen upgrading to a new kernel, you must reinstall the DKMS-enabled driver packages. Perform the following s

74 Driver InstallationInstalling Solaris DriverUse the procedures in this section to install the driver for Solaris 10. To ensure that you have the cu

Driver Installation 755Select [3] if you created a diskette from the mega_sas.img file and you are using a removable (USB) diskette drive.6Follow inst

76 Driver Installation4From the screen that displays, go to the Storage Adapter screen to install the MegaRAID SAS driver.5Delete any existing RAID ad

Configuring and Managing RAID 77Configuring and Managing RAIDDell™ OpenManage™ storage management applications enable you to manage and configure the

78 Configuring and Managing RAIDRAID Configuration FunctionsAfter you attach physical disks, use a configuration utility to organize the disks into vi

Configuring and Managing RAID 79BIOS Configuration UtilityThe BIOS Configuration Utility, also known as Ctrl+R, is a storage management application em

8 ContentsReplacing an Online Physical Disk . . . . . . . . 107Stopping Background Initialization. . . . . . . . 108Performing a Manual Rebuild of

80 Configuring and Managing RAID NOTE: You can access multiple controllers through the BIOS Configuration Utility by pressing <F12>. NOTE: You

Configuring and Managing RAID 81up-arrow keyUse the up-arrow key to move to the upper menu items within a menu or to a higher level menu. You can also

82 Configuring and Managing RAID<Tab> Press <Tab> to move the cursor to the next control on a dialog box or page.Press <Tab> to move

Configuring and Managing RAID 83Setting Up Virtual DisksYou can set up a disk group and create virtual disks using the procedures contained in this se

84 Configuring and Managing RAIDTable 6-2 shows the parameters that you can configure when defining virtual disks.Table 6-2. Virtual Disk Parameters a

Configuring and Managing RAID 85Virtual Disk Management Creating Virtual Disks NOTE: Combining SAS and SATA hard disk drives (HDDs) within a virtual

86 Configuring and Managing RAID2Use the arrow keys to highlight Controller # or Disk Group #.3Press <F2> to display the actions you can perform

Configuring and Managing RAID 8715Perform the following steps to select the virtual disk parameters:aPress <Tab> to move the cursor to the param

88 Configuring and Managing RAIDlIf you have chosen to create hot spares in the earlier steps, a pop-up window displays where drives with appropriate

Configuring and Managing RAID 89If you attempt to run a Consistency Check on a virtual disk that has not been initialized, the following error message

Contents 9A Regulatory Notices . . . . . . . . . . . . . . . . 133B Corporate Contact Details (Taiwan Only) 135Glossary. . . . . . . . . . . . . . .

90 Configuring and Managing RAIDPerform the following steps to import or clear foreign configurations.1During bootup, press <Ctrl><R> when

Configuring and Managing RAID 91You can use the Foreign Configuration View screen to manage foreign configurations in the following cases:• All the ph

92 Configuring and Managing RAID NOTE: When you import a foreign configuration, the dedicated hot spares in the configuration are imported as dedicat

Configuring and Managing RAID 93Managing Preserved CacheIf a virtual disk becomes offline or is deleted because of missing physical disks, the control

94 Configuring and Managing RAIDManaging Dedicated Hot SparesA dedicated hot spare automatically replaces a failed physical disk only in the selected

Configuring and Managing RAID 954Press <Enter> to confirm the changes.The VD Mgmt screen displays the updated list of hot spares under the Hot s

96 Configuring and Managing RAID3Press <F2>.The action menu displays.4Select Delete Disk Group and press <Enter>.The disk group is deleted

Configuring and Managing RAID 97•Controller Management (Ctrl Mgmt) menu•Foreign Configuration View menuMost menus consist of two panels:• A left panel

98 Configuring and Managing RAIDTable 6-3. Information on the Virtual Disk Management ScreenMenu Item Selected in Left PanelInformation Displayed in R

Configuring and Managing RAID 99Physical Disks Disk Group # Properties:• Number of virtuals disks (VD)• Number of physical disks (PD)• Space available