I use amanda for backups, all scheduled ... / 2013-07-29

I use amanda for backups, all scheduled automatically, including automatically waking up and shutting down systems for backups but I also want the effort to put in the right tape minimal. To eliminate waiting for the previous tape to rewind and eject I tried an extra check which ejects the tape when it's not the 'correct' tape.

$ amcheck -t kzdoos > /dev/null || mt -f /dev/nst0 eject 2>/dev/null
$

The amcheck command will give an errorlevel on the wrong tape, but also on no tape at all, so I need to ignore the errors from mt. The above commandline now has a place in the crontab for the account the backups are run on.