Users Guide

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 links
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.
Using The Physical Disk Online Command On Select Controllers
Does my controller support this feature? See Supported Features.
If you do not have a suitable backup available, and if the failed disk is part of a virtual disk on a controller that supports the Online
physical disk task, then you can attempt to retrieve data by selecting Online from the drop-down task menu of the failed disk.
The online command attempts to force the failed disk back into an online state. If you are able to force the disk into an online state,
you may be able to recover individual les. The amount of data you can recover depends on the extent of disk damage. File recovery
is only possible if a limited portion of the disk is damaged.
However, you may not be able to recover any data using this method. A forced Online does not x a failed disk. You should not
attempt to write new data to the virtual disk.
After retrieving any viable data from the disk, replace the failed disk as described previously in Replacing A Failed Disk That Is Part Of
A Redundant Virtual Disk or Replacing A Failed Physical Disk That Is Part Of A Non-Redundant Virtual Disk.
Related links
Setting The Physical Disk Online Or Oine
Recovering From Removing The Wrong Physical Disk
If the physical disk that you mistakenly removed is part of a redundant virtual disk that also has a hot spare, then the virtual disk
rebuilds automatically either immediately or when a write request is made. After the rebuild has completed, the virtual disk no longer
has a hot spare since data has been rebuilt onto the disk previously assigned as a hot spare. In this case, assign a new hot spare.
If the physical disk that you removed is part of a redundant virtual disk that does not have a hot spare, then replace the physical disk
and perform a rebuild task.
For information on rebuilding physical disks and assigning hot spares, see Understanding Hot Spares.
You can avoid removing the wrong physical disk by blinking the LED display on the physical disk that you intend to remove. For
information on blinking the LED display, see Blinking And Unblinking A Physical Disk.
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