Tells you whether volumes need rebuilding.

    You may need to rebuild a volume if the volume was improperly
    dismounted. Volumes are improperly dismounted when, for example,
    the system crashes.

    For each volume, SHOW DEVICES/REBUILD_STATUS returns one of these
    values:

    Value              Meaning

    Yes                Rebuild needed.
    No                 Rebuild not needed.
    Not applicable     You cannot rebuild this volume. This value is
                       returned if, for example, the volume is not a
                       disk, or the volume is write-locked.
    Information        Rebuild information is unavailable. This value
    unavailable        is returned when, for example, the volume is
                       not mounted, or mount verification is taking
                       place.

    To rebuild a volume, either:

    o  Use SET VOLUME/REBUILD

    o  Dismount the volume, then mount the volume again using
       MOUNT/REBUILD

    You cannot use the /REBUILD_STATUS qualifier with any other SHOW
    DEVICES qualifiers, except /OUTPUT.