They will need to disable hardware compression by calling:
xeq devctrl.mpexl.telesup nn;compression=disable
where 'nn' is the ldev number of the tape drive.

        This needs to be repeated every time the machine is rebooted, so it
would need to be put into a job streamed by SYSSTART.PUB.SYS  (for
instance) which takes other start of session actions. This command can't
be executed from SYSSTART itself.

Regards...Chris.
__________________________
Christopher Davey
Technical Manager, Colonial IS Technical Services
5/353 Lt Collins St Melbourne
Victoria 3000 Australia

ph :  (+ 61 3) 9200 6103
fax:  (+61 3) 9200 1090

mailto:[log in to unmask]


___________________________

>----------
>From:  Igor Yasno[SMTP:[log in to unmask]]
>Sent:  Friday, 3 October 1997 2:01
>To:    [log in to unmask]
>Subject:       How to create a non-compressed tape?
>
>Greetings,
>
>One of our customers creates 4mm tapes that are automatically compressed by
>the tape drive. Thereafter, we can't read those tapes because our drive does
>not support the compressed format.
>
>What commands must be issued on the customer's HP/3000 in order to create an
>un-compressed (regular) tape?
>
>Best regards,
>Igor Yasno
>Diamond Optimum Systems
>818.224.2010
>[log in to unmask]
>www.diamondos.com
>