The HA or Disaster Recovery (DR) state of the system that owns a disk can affect which system has access to the disk. This means that there are several types of ownership for disks.
Disk ownership information is set either by Data ONTAP or by the administrator, and recorded on the disk, in the form of the controller module's unique system ID (obtained from a node's NVRAM card or NVMEM board).
Disk ownership information displayed by Data ONTAP can take one or more of the following forms. Note that the names used vary slightly depending on the context.
This is the system that can currently access the disk.
If the system is in HA takeover, then Owner is changed to the system that took over the node, and Original owner or Home owner reflects the system that owned the disk before the takeover.
If the system is in a MetroCluster switchover, DR home owner reflects the value of the Home owner field before the switchover occurred.