A normal hot spare will have a single bound LUN which consumes the entire disk. That LUN is where the data is copied to when a disk failure occurs. As long as the Disk is in a 1-disk Hot Spare RAID Group, and has a Hot Spare type LUN bound, it should work fine.
Richard J Anderson
because the hot spares are currently full but there is no faults with any disks. I need to get this done so if we have a disk failure then we have hot spare ready for action.