Users Guide

Incorrect number of physical disks selected for the desired RAID level
For details about RAID levels and the allowable number of physical disks used with each RAID level, see understanding RAID
levels in RAID Technology Guide at dell.com/support/manuals.
The desired physical disk is unavailable
Determine whether the physical disk:
1. Is a dedicated hot spare and unavailable for use in another virtual disk.
2. Is full or has insufficient available capacity.
The system already has a maximum of 30 virtual disks
Delete unused virtual disks.
CAUTION: Deleting a virtual disk destroys all data on the virtual disk.
A virtual disk is in a degraded state
If the virtual disk is in a degraded state, check the following causes:
1. A physical disk was removed.
2. Physical or mechanical problems with the physical disk on page 52.
3. The virtual disk has lost redundancy.
4. Corrupted metadata in the virtual disk.
A physical disk was removed
1. Install the original physical disk if it was inadvertently removed, or replace it with a new or used physical disk.
2. Initialize a new physical disk. Perform a Rescan for all physical disks that are replaced.
3. If the physical disk was not removed, check that its cables are correctly installed.
Physical or mechanical problems with the physical disk
1. Determine if the physical disk in the virtual disk has failed.
2. If a physical disk was recently removed and replaced, determine that it is correctly positioned in the backplane. Check the
cable connections at the physical disk and at the system board.
3. Perform a Rescan
The virtual disk has lost redundancy
One or more physical disks in the virtual disk may have 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.
1. Replace the physical disk or disks.
2. Rebuild the physical disk using Storage Management. See the applicable Storage Management screen at www.dell.com/
manuals.
Corrupted metadata in the virtual disk
1. Delete the virtual disk that has the failed metadata.
2. Assign the physical disk as a hot spare to rebuild a redundant virtual disk.
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Troubleshooting your system