topic Re: fbackup parameter in Operating System - HP-UX

fbackup parameter

Guy Humphreys — Tue, 29 Jun 2004 09:20:34 GMT

Hi All,

Is there a parameter I can use to stop the DLT drive ejecting the tape after a successful backup? I don't mind if it is fbackup or using some other method.

At the moment all our backups spit the tape out after the backup finishes, I would like to retain the tape in the drive on Sat nights so that the same tape can be used on Sun nights without anyone having to go in and change the tape. I've looked in the fbackup man pages and can't find anything.

Thanks for any help with this

Cheers
Guy

Re: fbackup parameter

A. Clay Stephenson — Tue, 29 Jun 2004 09:35:08 GMT

This behavior is not governed by fbackup. Look in your backup scripts for the mt command. An mt "offl" command will generally unload the tape. I should point out that even with this problem solved, you can't use fbackup for this. Fbackup uses rewind devices so that your subsequent backup would write over the previous one.

Re: fbackup parameter

David Child_1 — Tue, 29 Jun 2004 09:35:37 GMT

Guy,

You stated that you "don't mind if it is fbackup or using some other method". Using 'tar' you could easily do this as you need to tell it to offline. Also, are you overwritting Saturdays data on Suday? If the tape is big enough you can specify 'no-rewind' and it will contain both Sat and Sun (e.g. tar cvf /dev/rmt/0mn).

David

Re: fbackup parameter

Jose Mosquera — Tue, 29 Jun 2004 09:37:11 GMT

Hi,

Try this:

/usr/sbin/fbackup ...
STATUS=$?

case $STATUS in
0) echo "Backup Ok"
/usr/bin/mt -t /dev/rmt/ rew
/usr/bin/mt -t /dev/rmt/ offl
;;
4) echo "Backup finished with Warnings"
;;
*) echo "Backup Failed"
;;
esac

Rgds.

Re: fbackup parameter

Darren Prior — Tue, 29 Jun 2004 09:39:07 GMT

Hi Guy,

Fbackup only allows one session per tape, so there would be no benefit in leaving the tape in the drive unless you don't mind Saturday's backup getting overwritten by Sunday's backup.

Also - I thought you still had to manually operate the handle to eject a DLT?

regards,

Darren.

Re: fbackup parameter

Jose Mosquera — Tue, 29 Jun 2004 10:17:04 GMT

Hi again,

This script do not spit the tape at Satudays nights:

#!/sbin/sh
/usr/sbin/fbackup your_fbackup_options...
STATUS=$?
case $STATUS in
0) echo "Backup Ok"
TONIGHT=`date +%a`
if [ "$TONIGHT" != "Sat" ]
then
/usr/bin/mt -t /dev/rmt/ rew
/usr/bin/mt -t /dev/rmt/ offl
fi
;;
4) echo "Backup finished with Warnings"
;;
*) echo "Backup Failed"
;;
esac

Rgds.