Storage system ownership must be assigned for disks and array LUNs before they become an effective part of your system. You must explicitly assign ownership for array LUNs. Disks can be automatically or manually assigned.
You assign ownership of a disk or array LUN to accomplish the following actions:
For a stand-alone system, all disks and array LUNs are owned by that system. In an HA configuration, the disks and array LUNs can be owned by either system.
Unowned disks cannot be used as spares and do not receive the automatic firmware updates that owned disks do.