Dell S300, S100 manual Redundant virtual disk

Page 72

Table 7-10. A Virtual Disk is in a Degraded State

Likely Causes to Check

Corrective Actions

 

 

A physical disk was removed

• Install the original physical disk, if it was

 

inadvertently removed, or replace it with a new or

 

used physical disk.

 

• Initialize a new physical disk. Perform a Rescan

 

for all physical disks that are replaced.

 

• If the physical disk was not removed, check that

 

its cables are correctly installed.

 

 

Physical or mechanical problems

• Check if the physical disk in the virtual disk has

with the physical disk

failed.

 

• If a physical disk was recently removed and

 

replaced, check that it is correctly positioned in

 

the backplane. Check the cable connections at the

 

physical disk and at the motherboard. Perform a

 

rescan.

 

 

The virtual disk has lost

• One or more physical disks in the virtual disk have

redundancy

failed. Due to the failed physical disk or disks, the

 

virtual disk is no longer maintaining redundant

 

(mirrored or parity) data. The failure of an

 

additional physical disk results in lost data.

 

• Replace the physical disk or disks. Rebuild the

 

physical disk using Storage Management. See the

 

applicable Storage Management screen, located

 

on the Dell Support website at

 

support.dell.com/manuals.

 

 

Corrupted metadata in the

1 Delete the virtual disk that has the failed

virtual disk

metadata.

 

2 Assign the physical disk as a hot spare to rebuild a

 

redundant virtual disk.

 

3 To create a non-redundant virtual disk, delete and

 

rebuilt the data on a virtual disk, and restore the

 

data from a backup storage source.

 

 

72

Troubleshooting

Image 72
Contents User’s Guide February Contents Installing the Perc S300 Adapter Complete the Hardware InstallationInstalling the Microsoft Windows Drivers Physical Disk-Related ErrorsRAID Technology Understanding Disk Arrays Industry Canada Notice Canada OnlyContents Page Safety General Safety When Working Inside Your SystemProtecting Against Electrostatic Discharge Page Overview IntroductionOverview Supported Platforms Requirements Physical disksOverview Boot to it About RAID Summary of RAID LevelsRAID Terminology Disk StripingDisk Mirroring Spanned RAID Levels Parity DataExample of Distributed Parity RAID Features General FeaturesDescription Description Allows hot-swapping Physical disks, in the same virtual disk Disks That supports hot-swappingBackplane with hot-swap capability Features Virtual disk Migration during an OCESpecifications RAID Hardware Installation Before You BeginGeneral Considerations Installing the Perc S300 Adapter Installing a Perc S300 Adapter Connecting the Cables Complete the Hardware Installation Connect Physical Disks to the Perc S300 AdapterHardware Installation Installing the Drivers Installing the Microsoft Windows DriversDownloading the Controller Driver Media Pre-Installation Requirements for the Controller Drivers Operating System And Device Driver MediaTo Use Sata Controller to either ATA Mode or Ahci Pre-Installation Procedures For The Controller Drivers Steps DVD, and so on, perform the following For Microsoft Windows Server 2008 and Windows Server 2008 R2 For Microsoft Windows Server For Microsoft Windows Server 2008 and Windows Server 2008 R2 Installing the Drivers Installing the Drivers RAID Configuration Management Perc Virtual Disk Management Utility Operations DescriptionAccessing the Perc Virtual Disk Management Utility Perc Virtual Disk Management Text Colors Description Initializing Physical Disks Creating Virtual Disks Before You BeginRAID Configuration and Management Deleting Virtual Disks RAID Configuration and Management Swapping Two Virtual Disks Managing Global Hot Spares Create a Global Hot SpareDelete a Global Hot Spare Viewing Physical Disk Details Viewing Virtual Disk DetailsController Options Description How to Operate Rescanning DisksController Options Continuing to Boot Pause if DegradedRAID Configuration and Management Troubleshooting System Startup ProblemsRAID Mode to ATA Mode Boot Mode, Boot Sequence Bios Bios Screen Corrective Action Lost This warning message appears when multiple virtual disks are This warning message appears when From virtual disk creation Virtual Disk-Related Errors On the virtual disk A Virtual Disk is in a Failed StateRedundant virtual disk 12. Cannot Create a Global Hot Spare Select View Virtual Disk Details Physical Disk-Related Errors 14. a Dedicated Hot Spare FailsTroubleshooting Controller Specifications Appendix aRead, Write, and Cache Policy S300 adapterController Tasks Physical Disk TasksTable A-3. Physical Disk Tasks Physical Disk Task Name Perc S300 adapterVirtual Disk Tasks Supported RAID LevelsTable A-4. Virtual Disk Tasks Virtual Disk Task Name AdapterVirtual Disk Specifications Appendix B RAID Technology Understanding Disk Arrays and Virtual DisksUnderstanding RAID Levels Appendix B Disk States Virtual and Physical Disks Table B-2. Physical Disk States DefinitionFailure States Table B-3. Virtual Disk States State DefinitionTable B-5. Minimum and Maximum Physical Disk Configurations Creating Virtual Disks Future ExpansionUnderstanding Physical Disks Physical Disk StatesDedicated Hot Spares Rescanning Physical Disks for Changes in StateGlobal Hot Spares Appendix C Regulatory NoticesFCC Notice U.S. Only FCC, Class aFCC, Class B Industry Canada Notice Canada Only CE Notice European UnionIndustry Canada, Class a Industry Canada, Class BAppendix C CE Mark Notice Appendix D Contacting DellAppendix D Index Index Index 100 101 102 Glossary 103104 105 106 107 Acronym for nanoseconds, one billionth of a second108 109 110
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