Dell UCPM-800 manual Degraded State Of Virtual Disks, General Issues

Page 32

Category	Event Reported To the CMC	Description of the	Corrective Action
		Failure

	Critical Error during	The NVData image is	Contact Dell Technical
	boot - NVDATA image is	invalid.	Support.
	invalid - reflash NVDATA
	image

Degraded State Of Virtual Disks

A redundant virtual disk is in a degraded state when one or more physical disks have failed or are inaccessible. For example, if a RAID 1 virtual disk consists of two physical disks and one of them fails or becomes inaccessible, the virtual disk becomes degraded.

To recover a virtual disk from a degraded state, you must replace the failed physical disk and rebuild it. After the rebuilding process is complete, the virtual disk state changes from degraded to optimal.

General Issues

Shared PERC 8 Card Has Yellow Exclamation Mark In Device Manager

Issue:	The device is displayed in Device Manager but has a yellow exclamation mark (!).
Corrective	Reinstall the driver. For more information on reinstalling drivers, see Driver
Action:	Installation. If reinstalling the driver does not resolve the yellow exclamation mark,
	perform a shutdown of all server modules and power cycle the chassis.

Shared PERC 8 Card Not Seen In Device Manager

Issue:	The device does not appear in the Device Manager.
Corrective	In the Dell Chassis Management Controller (CMC) application, verify if the Shared
Action:	PERC 8 is correctly mapped to the server module. For more information on
	assigning virtual adapters to server slots, see the Dell Chassis Management
	Controller for Dell PowerEdge VRTX User’s Guide at dell.com/poweredgemanuals.
	NOTE: Make changes to Virtual Adapter to Server Slot mapping only when
	the server modules are turned off.
	If the Virtual Adapter to Server Slot mapping is correct and the device still does
	not appear in the Device Manager, turn off the system and reseat the Shared PERC
	8 card.

Critical Errors Or Disk Warning Messages Seen In The Windows Event Log

Issue:	Error messages such as Critical Event11, PERCSAS2The driver detected

	a controller error on \Device\RaidPort...
	or,

32

Image 32

Contents User’s Guide Page Contents Driver Installation Deploying The Shared Perc 8 CardGetting help Configurations of the Shared Perc 8 card About The Shared Perc 8 CardSpecifications of a Shared Perc 8 card Storage Subsystem Compatibility Matrix at dell.comPage Related Documentation Supported Operating SystemsBest Practices For Shared Perc Locating your system Service Tag Contacting DellDocumentation Feedback Shared Perc 8 Card Features Physical Disk Power ManagementConsistency Checks Virtual Disk InitializationPhysical Disk Roaming Background Initialization Of Virtual DisksFull Initialization Of Virtual Disks Fast Initialization Of Virtual DisksVirtual Disk Migration Using Physical Disk RoamingFastPath Migrating Virtual Disks If The Target System Is Turned On Virtual Disk Cache PoliciesMigrating Virtual Disks If The Target System Is Turned Off Virtual Disk Write Cache Policies Write-BackConditions Under Which Write-Back Is Employed Write-throughFault Tolerance Physical Disk Write Cache PolicyConditions under which write-through is employed Virtual Disk Read Cache PoliciesSmart Feature Patrol ReadShared Perc 8 Card Cache Preservation Physical disk failure detectionPhysical Disk Hot Swapping Battery Transparent Learn Cycle Controller Failover FeatureConfiguring Multipath Support In Windows Configuring Multipath Support In VMWareMultipath Support Multipath support in LinuxReplacing a Shared Perc 8 Card Installing a New Shared Perc 8 CardDeploying The Shared Perc 8 Card Prerequisites For Removing The Shared Perc 8 Card Removing The Shared Perc 8 CardRemoving and Installing the Shared Perc 8 Card Installing The Shared Perc 8 Card Post-Installation Tasks For Shared Perc 8 CardFirmware installation or update Updating firmwareDriver Installation Installing Or Updating Windows Drivers For Shared Perc Installing Or Updating Linux Drivers For Shared Perc Installing Or Updating VMware Drivers For Shared PercManagement Applications For Shared Perc 8 Card Troubleshooting Shared Perc 8 Card Boots Into Safe ModeShared Perc 8 Card Not Seen In Device Manager General IssuesDegraded State Of Virtual Disks Physical disk issues Unable to rebuild a fault tolerant virtual diskShared Perc 8 Cards Fail To Function Physical Disk In Failed StateRebuilding a Failed Physical Disk Fatal Error Or Data Corruption ReportedMultiple Disks Become Inaccessible Physical disk takes a long time to rebuild Virtual Disk Fails During Rebuild Using a Global Hot SpareController cache issues Smart Errors Auto Replacement Member Errors Source Disk FailsTarget Disk Fails General Disk FailsHard-Drive Indicator Patterns Hard-Drive IndicatorsGetting help Documentation feedback