Users Guide

Replacing A Failed Disk That Is Part Of A Redundant Virtual Disk
If the failed disk is part of a redundant virtual disk, then the disk failure will not result in data loss. You
must replace the failed disk immediately, however, as additional disk failures can cause data loss.
If the redundant virtual disk has a hot spare assigned to it, then the data from the failed disk is rebuilt onto
the hot spare. After the rebuild, the former hot spare functions as a regular physical disk and the virtual
disk is left without a hot spare. In this case, you must replace the failed disk and assign the replacement
disk as a hot spare.
NOTE: If the redundant virtual disk does not have a hot spare assigned to it, then replace the failed
disk using the procedure described in Replacing a Physical Disk Receiving SMART Alerts.
Related Concepts
Rebuilding Data
Replacing The Disk
To replace the failed disk that is part of a redundant virtual disk:
1. Remove the failed disk.
2. Insert a new disk. Make sure that the new disk has equal or greater memory space than the one you
are replacing. On some controllers, you may not be able to use the additional space by inserting a
disk that has a higher memory space.
A rebuild is automatically initiated because the virtual disk is redundant.
Related Concepts
Virtual Disk Considerations For Controllers
Assigning A Hot Spare
If a hot spare was already assigned to the virtual disk, then the data from the failed disk may already be
rebuilt onto the hot spare. In this case, you need to assign a new hot spare.
Related Concepts
Assigning And Unassigning Dedicated Hot Spare
Assigning And Unassigning Global Hot Spare
Replacing A Failed Physical Disk That Is Part Of A Non-Redundant Virtual Disk
If the failed physical disk is part of a nonredundant virtual disk (such as RAID 0), then the failure of a single
physical disk causes the entire virtual disk to fail. To proceed, you need to verify when a backup was
taken, and if there is any new data that has been written to the virtual disk since that time.
If you have backed up recently and there is no new data on the disks that would be missed, you can
restore from backup.
Replacing The Disk
1. Delete the virtual disk which is in a failed state.
2. Remove the failed physical disk.
3. Insert a new physical disk.
4. Create a new virtual disk.
5. Restore from backup.
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