Users Guide
NOTE: Rebuilding a disk may take several hours.
Related links
Replacing A Failed Disk That Is Part Of A Redundant Virtual Disk
Canceling A Rebuild
Does my controller support this feature? See Supported Features.
Select the Cancel Rebuild task to cancel a rebuild that is in progress. If you cancel a rebuild, the virtual disk remains in a Degraded
state. The failure of an additional physical disk can cause the virtual disk to fail and may result in data loss. It is recommended that
you rebuild the failed physical disk as soon as possible.
NOTE: If you cancel the rebuild of a physical disk that is assigned as a hot spare, reinitiate the rebuild on the same
physical disk in order to restore the data. Canceling the rebuild of a physical disk and then assigning another physical disk
as a hot spare does not cause the newly assigned hot spare to rebuild the data. Reinitiate the rebuild on the physical disk
that was the original hot spare.
Assigning And Unassigning Global Hot Spare
Does my controller support this feature? See Supported Features.
A global hot spare is an unused backup disk that is part of the disk group. Hot spares remain in standby mode. When a physical disk
that is used in a virtual disk fails, the assigned hot spare is activated to replace the failed physical disk without interrupting the
system or requiring your intervention. When a hot spare is activated, it rebuilds the data for all redundant virtual disks that were using
the failed physical disk.
You can change the hot spare assignment by unassigning a disk and choosing another disk as needed. You can also assign more than
one physical disk as a global hot spare.
Global hot spares must be assigned and unassigned manually. They are not assigned to specic virtual disks. If you want to assign a
hot spare to a virtual disk (it replaces any physical disk that fails in the virtual disk), then use the Assign and Unassign Dedicated
Hot Spare.
NOTE: When deleting virtual disks, all assigned global hot spares may be automatically unassigned when the last virtual
disk associated with the controller is deleted. When the last virtual disk of a disk group is deleted, all assigned dedicated
hot spares automatically become global hot spares.
NOTE: For PERC H330, H730, H730P, H740P, and PERC H840 controllers, if any of the drives you selected are in the
Spun Down state, the following message is displayed: The current physical drive is in the spun down
state. Executing this task on this drive takes additional time, because the drive needs
to spun up.
You should be familiar with the size requirements and other considerations associated with hot spares.
Related links
Protecting Your Virtual Disk With A Hot Spare
Setting The Physical Disk Online Or Oine
Does my controller support this feature? See Supported Features.
The Online and Oine tasks apply only to physical disks that are included in a redundant virtual disk and attached to a PERC
controller.
Select the Oine task to deactivate a disk before removing it. Select the Online task to reactivate an oine disk. In some cases, you
may want to use the Online task on a failed disk in an attempt to recover data from the disk.
Related links
Using The Physical Disk Online Command On Select Controllers
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