| Author | Brian Scott |
| Compatibility | Xymon 4.3 |
| Requirements | FreeBSD, Bourne Shell (sh) |
| Download | None |
| Last Update | 2011-08-12 |
Simple shell script to monitor FreeBSD geom based mirroring.
Status is red for degraded (missing a component) and yellow when recovering.
Pretty much standard fare:
[gmirror]
ENVFILE /home/hobbit/server/etc/xymonserver.cfg
NEEDS xymond
CMD $XYMONHOME/ext/gmirror.sh
LOGFILE $XYMONSERVERLOGS/gmirror.log
INTERVAL 5m
Or the equivalent on the client side.
#!/bin/sh
COLUMN=gmirror
HOSTNAME="`hostname`"
COLOUR=green
# % gmirror status
# Name Status Components
#mirror/root COMPLETE ad8p2 (ACTIVE)
# ad10p2 (ACTIVE)
# mirror/var COMPLETE ad8p4 (ACTIVE)
# ad10p4 (ACTIVE)
# mirror/usr COMPLETE ad8p6 (ACTIVE)
# ad10p6 (ACTIVE)
#mirror/home COMPLETE ad8p7 (ACTIVE)
# ad10p7 (ACTIVE)
# STARTING, COMPLETE, DEGRADED -> yellow, green, red
/usr/bin/time -p gmirror status >$XYMONTMP/$COLUMN.out 2>&1
rc=$?
SECONDS=`egrep "^real" $XYMONTMP/${COLUMN}.out | awk '{printf $2}'`
if [ $rc -ne 0 ]; then
COLOUR=red
MSG="gmirror query failed
`cat $XYMONTMP/${COLUMN}.out|grep -v '^\(real\|user\|sys\)'`
Seconds: ${SECONDS}
"
else
grep ' DEGRADED ' $XYMONTMP/$COLUMN.out >/dev/null
if [ $? -eq 0 ]; then
COLOUR=red
else
grep ' STARTING ' $XYMONTMP/$COLUMN.out >/dev/null
if [ $? -eq 0 ]; then
COLOUR=yellow
fi
fi
MSG="gmirror query succeeded
`cat $XYMONTMP/${COLUMN}.out|grep -v '^\(real\|user\|sys\)'`
Seconds: ${SECONDS}
"
fi
$XYMON $XYMSRV "status $HOSTNAME.$COLUMN $COLOUR `date`
$MSG"
$RM $XYMONTMP/${COLUMN}.out
exit 0
Known Bugs and Issues
Nice features like green/red/yellow dots against individual mirrors.
Ability to exclude mirrors that we don't care about.
As with all of these things, the code started out by kicking around other people's code.