Synchronous mirroring status
A synchronous mirrored pair's status indicates whether the data on the primary volume and on the secondary volume is synchronized. A mirror status is independent of the component status of the volumes in the mirrored pair.
Volume ownership
You can change the preferred controller owner in a mirrored pair.
Role change between volumes in a mirrored pair
You can change the role between volumes in a mirrored pair. You can do this by demoting the primary volume to the secondary role or promoting the secondary volume to the primary role.