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UNLOAD command

The UNLOAD command rewinds  a  magnetic  tape  until  it  is  returned
completely  to  the  source  reel,  and puts the associated tape drive
offline.  Use UNLOAD only for tapes mounted on  drives  having  device
names of the form MTAn:.


Format

     @UNLOAD (DEVICE) dev:

     where:

     dev:     is the name of the magnetic tape drive that you want  to
              unload.


Restrictions

     UNLOAD With Open Files

          If you have given a CTRL/C to exit from a program  that  has
          opened  a  magnetic  tape drive and you then gave the UNLOAD
          command for that tape drive, the system will  first  ask  if
          you  want  to close the associated file.  You must do so for
          UNLOAD to succeed,  but  you  will  probably  be  unable  to
          continue  the  program from that point because the file will
          now be closed.

     UNLOAD Not for MOUNTed Drives

          Use the UNLOAD command for tape  drives  obtained  with  the
          ASSIGN command.  Use DISMOUNT for a tape drive obtained with
          MOUNT.


Warning

     Cannot Access Tape Again

          The UNLOAD command makes it impossible to access  your  tape
          again unless it is reloaded by the operator.


Related Commands

     ASSIGN     for assigning a tape drive to your job

     DISMOUNT   for unloading tapes mounted on  devices  of  the  form
                MTn:

     REWIND     for rewinding a magnetic tape volume or  tape  set  to
                its load point (logical beginning)


Examples

     1.  Unload your magnetic tape from drive MTA0:.

         @UNLOAD MTA0: