[comp.os.vms] Problem with BACKUP/REWIND

XPMAINT@TAMVENUS.BITNET (Shane Davis -- CSC XPrint Manager) (04/12/88)

>Situation:
>    This is the first major(?) script that I have written (we started
>    using VMS this semester).  I have a script that does the following
>    BACKUP command:
>
>$ BACKUP/REWIND/IMAGE/BUFFER_COUNT=5/VERIFY MA$DUA0: -
>    MA$MUB0:'DATE.BCK/SAVE_SET
>
>Problem:
>    My problem is that after either backup is done, the tape does not
>    rewind itself and the statements in the COM file following the
>    backup command are never executed.
>
>    This means that in order to do both backups, I have to run the
>    script twice.
>
>Question:
>    Am I doing something wrong or is this normal?

First of all, BACKUP/REWIND indicates that the tape is to be rewound *BEFORE*
the backup operation, not afterward. To rewind it afterward, insert the
following command after the BACKUP command:

$ SET MAGTAPE/REWIND MA$MUB0: (or whatever device it is)

Also, when you execute the DISMOUNT command, the default (at least at every
installation at which I've used tape) is /UNLOAD, which will unload-rewind
the tape. If you were having that problem as well, you will need to do a
DISMOUNT/NOUNLOAD MA$MUB0: rather than DISMOUNT MA$MUB0: if you do not wish
to physically re-mount the tape between BACKUP operations.

--Shane Davis
  Systems Programming Assistant
  Texas A&M Univ. Computing Svcs. Ctr. Software Systems Group

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