ORA-15205: requested mirror side unavailable
Cause: The requested mirror side of a block is either unallocated or allocated on a disk that has been dropped from the diskgroup.
Action: Resubmit the request or try another mirror side.
Cause: The requested mirror side of a block is either unallocated or allocated on a disk that has been dropped from the diskgroup.
Action: Resubmit the request or try another mirror side.
