Users Guide

Use the Prepare to Remove task to spin down a physical disk or physical device so that it can be safely removed from an
enclosure or backplane. It is recommended that you perform this task before removing a disk or device to prevent data loss.
This task causes the LED on the disk to blink. You can safely remove the disk or device by following the conditions listed below:
● Wait for about 30 seconds to allow the disk to spin down.
● Wait until you notice that the initial blink pattern has changed into a different pattern or the lights have stopped blinking.
A physical disk or physical device is no longer in ready state performing. Removing the physical disk or device from the enclosure
or backplane and replacing it causes the physical disk or device to spin up and return to Ready state.
NOTE: This procedure is not available for physical disks or devices that have been assigned as a hot spare or physical disk
or devices that are part of a virtual disk. In addition, this procedure is only supported for hot swap physical disks or devices
(disks that reside in a carrier.)
Rebuilding Data
Does my controller support this feature? See Supported Features.
Select the Rebuild task to reconstruct data when a physical disk in a redundant virtual disk fails.
NOTE: Rebuilding a disk may take several hours.
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.
NOTE:
On PERC S100 and S300 controllers, if there is free space available on the global hot spare, it continues to function
as a spare even after replacing a failed physical disk.
Global hot spares must be assigned and unassigned manually. They are not assigned to specific 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 H310, H700, H710, H710P, H800, H810, H330, H730, H730P, H730P MX, H740P, H745P MX, H830,
H840, PERC FD33xD/FD33xS, PERC H745 and PERC H345 Adapter 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
Physical Disks Or Physical Devices 113