The UNLOCK command sends a SCSI Allow Media Removal command to
    the media robot.  Consult your hardware documentation for a
    description of the results of this command for your particular
    media robot.

    Format

    UNLOCK [ROBOT robot_name]

1  –  Parameter

    robot_name - The name for the media robot.

2  –  Example

    The following MRU example unlocks the door on a TLZ07 tape loader:

    $ ROBOT UNLOCK ROBOT GKA401