Dell and UCPE-900 Rebuilding a failed physical disk, Physical disk takes a long time to rebuild

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Rebuilding a failed physical disk

Issue:	Rebuilding a physical disk that is in a failed state.
Corrective	If you have configured hot spares, the PERC card automatically tries to use one of
Action:	the hot spares to rebuild a physical disk that is in a failed state. Manual rebuild is
	necessary if no hot spares with enough capacity to rebuild the failed physical disks
	are available. You must insert a physical disk with enough storage in the subsystem
	before rebuilding the physical disk.

NOTE: You can use the BIOS Configuration Utility (<Ctrl> <R>) or Dell OpenManage storage management application to perform a manual rebuild of an individual physical disk. For information on rebuilding a single physical disk, see Performing A Manual Rebuild Of An Individual Physical Disk.

Virtual disk fails during rebuild using a global hot spare

Issue:A virtual disk fails during rebuild while using a global hot spare.

Description: The global hot spare reverts to Hotspare state and the virtual disk is in Failed state.

Virtual disk fails during rebuild using a dedicated hot spare

Issue:A virtual disk fails during rebuild while using a dedicated hot spare.

Description: The dedicated hot spare reverts to Ready state and the virtual disk goes to Failed state.

Physical disk fails during reconstruction on redundant virtual disk

Issue:	A physical disk fails during a reconstruction process on a redundant virtual disk that
	has a hot spare.
Corrective	The dedicated hot spare reverts to Ready state and the virtual disk goes to Failed
Action:	state.

Virtual disk fails rebuild using a dedicated hot spare

Issue:A virtual disk fails during rebuild while using a dedicated hot spare.

Description: The dedicated hot spare is in Ready state and the virtual disk is in Failed state.

Physical disk takes a long time to rebuild

Issue:A physical disk is taking longer than expected to rebuild.

Description: A physical disk takes longer to rebuild when under high stress. For example, there is one rebuild I/O operation for every five host I/O operations. You cannot add a second virtual disk to a disk group while the virtual disk in that disk group is undergoing a rebuild. The firmware does not allow you to create a virtual disk using the free space available in a disk group if a physical disk in a virtual disk group is undergoing a rebuild operation.

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Contents Dell PowerEdge RAID Controller Perc 9 User’s Guide Page Contents Deploying the Perc card Driver installationBios Configuration Utility Security key and RAID management UEFI/HII RAID configuration utility100 Getting help Appendix RAID descriptionOverview Features of Perc H330 adapter cardFeatures of Perc H330 mini monolithic card Features of Perc H730 card Features of Perc H730/H730P mini monolithic card Features of Perc H730P adapter card Supported operating systems Features of Perc H830 adapter cardPerc H330 Perc H730 Perc H730P Perc H830 Perc card specificationsSAS Dell OpenManage Storage Management Management applications for Perc cardsComprehensive embedded management Related documentation Creating Global Hot Spares Creating Security Key Getting started with your Perc cardCreating Global Hot Spares Creating Security Key Creating virtual disks Setting up virtual disks Manage physical disks Creating Global Hot Spares Creating Security Key Page Enabling T10 PI FeaturesPerc 9 personality management T10 protection information4KB block size disk drives Secure firmware updateImproved RAID 10 configuration Physical disk power managementFull initialization Configured spin down delayTypes of virtual disk initialization Fast initialization Background initializationConsistency checks FastPath Using disk roamingConfiguring FastPath-capable virtual disks Disk roamingMigrating virtual disks Virtual disk migrationConditions under which write-back is employed Virtual disk write cache policiesVirtual disk read cache policies Reconfiguration of virtual disks Or more Yes Removes Redundancy While increasing Capacity Smart Feature Fault tolerancePhysical disk failure detection Using persistent hot spare slotsPatrol Read Controller cache preservation Using replace member and revertible hot sparesPhysical disk hot swapping Non-RAID disks support Battery Transparent Learn CycleSelect OK Removing the Perc 9 adapter Deploying the Perc cardBattery cable connector Perc 9 card SAS cables Removing the Perc 9 mini monolithic controller Installing the Perc 9 adapterRemoving and installing the Perc 9 mini monolithic card Replacing the battery of a H730P mini monolithic cardRemoving the battery carrier Removing the battery Installing the Perc 9 mini monolithic controllerRemoving a H730P slim card Removing and installing a H730P slim card Replacing the battery of a H730P slim cardRemoving the battery Removing the Perc 9 mini blade controller Installing a H730P slim cardRemoving and installing the Perc 9 mini blade controller Replacing the tethered battery of a Perc 9 mini blade cardRemoving the battery carrier Removing the battery from the battery carrier Installing the battery into the battery carrier Replacing the battery carrier Installing the Perc 9 mini blade controllerRemoving the Perc FD33xD Card Removing and installing the Perc FD33xD card Replacing the battery of a Perc FD33xD cardInstalling the Perc FD33xD card Page Downloading drivers from the Dell support website Driver installationCreating the device driver media Windows driver installation Linux driver installation Page Exiting the Configuration Utility Bios Configuration UtilityEntering the Bios Configuration Utility Menu navigation controls For more information, see Managing dedicated hot spares Setting up virtual disksParameters description Virtual disk management Bios Configuration Utility menu optionsPage Virtual disk actions Physical disk actions Physical disk management PD MgmtController management Ctrl Mgmt RebuildController management actions Creating virtual disks Foreign configuration viewVirtual Disk Management Initializing virtual disks Selecting virtual disk parametersRunning a data consistency check Checking data consistencyPage Break mirror Managing preserved cache Break mirror in Bios configuration utilityDeleting virtual disks Managing dedicated hot sparesDeleting disk groups Clearing the configurationSetting LED blinking Physical Disk ManagementReplacing an online physical disk Creating global hot sparesRemoving global or dedicated hot spares Performing a manual rebuild of an individual physical disk Restrictions and limitationsStopping background initialization Controller Management Enabling boot supportEnabling boot support for a BIOS-enabled controller Disabling auto import Enabling Bios stop on errorDisabling Bios stop on error Enabling auto importRestoring factory default settings Navigating to Dell Perc 9 configuration utility UEFI/HII RAID configuration utilityEntering the Uefi configuration utility Exiting the Uefi configuration utilityConfiguration management Viewing disk group properties Creating profile based virtual disksConverting physical disks to RAID capable disk Converting physical disks to non-RAID diskSaving controller events Managing foreign configurations on a RAID controllerDeleting existing configurations on a RAID controller Restoring factory settings for the controllerSaving debug log Switching the controller to HBA modeEnabling security for the controller Viewing physical disks associated with a virtual disk Switching the controller to RAID modeViewing virtual disk properties Viewing physical disk properties Viewing battery propertiesHardware components management Viewing physical disks associated with an enclosure Security key implementation Security key management in the Bios configuration utilitySecurity key and RAID management Changing the security key Local Key Management LKMCreating a security key Securing pre-existing virtual disks Deleting a security keyCreating secured virtual disks Page Instant secure erase Extra enclosure error message TroubleshootingBios configuration utility error messages Discovery error messageDirty cache data error message Previous configuration of disks removed error messageMissing virtual disks error message Adapter at baseport not responding error message Bios disabled error messageDrive Configuration Changes Error Message Virtual disks partially degraded error message Virtual disks offline error messageVirtual disks degraded error message Foreign configuration not found in ctrl R error message Memory or battery problem error messageFirmware fault state error message Foreign configuration found error messageDegraded state of virtual disks Previous configuration cleared or missing error messageInvalid SAS topology detected error message Configured disks removed or not accessible error messagePreserved Cache State Memory errorsSecurity key errors Secured foreign import errorsPhysical disk issues General IssuesPhysical disk displayed as blocked Unable to rebuild a fault tolerant virtual diskFatal error or data corruption reported Multiple disks become inaccessiblePhysical disk takes a long time to rebuild Virtual disk fails during rebuild using a global hot spareVirtual disk fails rebuild using a dedicated hot spare Rebuilding a failed physical diskReplace member errors Smart errorsGeneral disk fails Linux operating system errorsSource disk fails during replace member operation Target disk failsUnhealthy Status of the Drivers Disk Carrier LED IndicatorsUefi error messages Unable to register Scsi device error messageCorrective Action Disk striping Appendix RAID descriptionSummary of RAID levels RAID terminologySpanned RAID levels Disk mirroringExample of Distributed Parity RAID Parity dataDocumentation feedback Locating your system Service TagGetting help Contacting Dell