Use this option to assign a selected unassigned drive as a hot spare drive. A hot spare drive contains no data and acts as a standby in case any drive fails in a RAID level 1, 3, or 5 array in the Storage Subsystem. The hot spare drive adds another level of redundancy to the Storage Subsystem.
Important:
How to Assign a Hot Spare Drive
To assign a hot spare drive, select one or more drives in the Physical View from the available unassigned drives, then select either (1) the Drive >> Assign Hot Spare pull-down menu option, or (2) Assign Hot Spare from the right-mouse pop-up menu.
Result: The drive changes from unassigned to standby hot spare. The drive's capacity is subtracted from the Unconfigured Capacity
node in the Logical View.
Deassigning a Hot Spare
Use this option to return a selected hot spare drive or drives to an unassigned state.
Caution:
How to Deassign a Hot Spare Drive
To deassign a hot spare drive, select one or more standby hot spare drives in the Physical View, then select either (1) the Drive >> Deassign Hot Spare pull-down menu option, or (2) Deassign Hot Spare from the right-mouse pop-up menu.
Result: The drive changes from standby hot spare to unassigned. The drive's capacity is added to the Unconfigured Capacity node
in the Logical View.