Nagios Plug-In for Veritas Netbackup Scartch Pool check

To monitor the tapes in our library wich is a t a remote data center, we had a script running wich each morning mails us a report with the tapes count for each "Volume Pool" in our netbackup infrastructure. But as you may know sysadmins like to make their life easier so I wanted to be informed by our Nagios monitoring system when our Scratch pool was reaching certain tape counts so we could take action accordingly wihtout having to look to those mails each morning. So I came up with this little script.

#!/bin/bash

WARN_COUNT=$1
CRIT_COUNT=$2


SCRATCH_TMP=`/usr/openv/volmgr/bin/vmquery -b -pn Scratch_pool | wc -l`
SCRATCH_COUNT=$[$SCRATCH_TMP - 3]


if [ $SCRATCH_COUNT -lt $WARN_COUNT ];then
        if [ $SCRATCH_COUNT -lt $CRIT_COUNT ];then
                echo "Scratch count CRITICAL : availbale scratch tapes $SCRATCH_COUNT less then $CRIT_COUNT|scratch=$SCRATCH_COUNT;$WARN_COUNT;$CRIT_COUNT"
                exit 2
        else
                echo "Scratch count WARNING : available scratch tapes $SCRATCH_COUNT less then $WARN_COUNT|scratch=$SCRATCH_COUNT;$WARN_COUNT;$CRIT_COUNT"
                exit 1
        fi
else
        echo "Scratch count OK : available scratch tapes $SCRATCH_COUNT|scratch=$SCRATCH_COUNT;$WARN_COUNT;$CRIT_COUNT"
        exit 0
fi
exit 3

Now our nice nagios installation will warn me when I need to do something , so I just need to wait for a mail to take action, instead of having to remember each morning to look at those mails. find the "Scratch pool" look at the tape count.