Physical drive does not have a mirror.

        Occurs on:  SFT II and TTS.

        Meaning:  The physical drive number that was used with the
                  UNMIRROR console command does not have a mirror drive
                  assigned to it.  This is not a fatal error but the
                  UNMIRROR command will be aborted.

        Cause:  A physical drive number that corresponds to a drive that
                is not mirrored was used with the UNMIRROR console
                command.

        Solution:  Ensure that you are attempting to unmirror the
                   correct physical drive.