Users Guide

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

CAUTION: The SAS 6/iR controller enables you to assign two physical disks as global hot spare.

Assigning a physical disk as a global hot spare on a SAS 6/iR controller is likely to cause data loss

from the physical disk. If the system or boot partition resides on the physical disks, it may be

destroyed. You should only assign physical disks that do not contain critical data.

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 SAS 6/iR controllers, you cannot assign physical disks that have boot partitions, as hot

spares.

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, H830, and PERC

FD33xD/FD33xS 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.