E4653 Cmd Rej: Could not reserve disk

The disk-under-test could not be reserved to perform the requested operation; the disk is unavailable or busy.

Recovery

1. Make sure no other disk operation is in progress (audit, database backup, or database restore). If so, wait for the operation to complete.

2. Re-enter the command that generated this error message. If this error message appears again, contact My Oracle Support. See My Oracle Support (MOS)