munin-contrib/plugins/disk/lvm_snap_used

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#!/bin/bash
#
# Plugin to monitor the % of allocated area of a LVM snapshot
#
# Parameters:
#
# config
# autoconf
#
# Configuration variables
# no config variables
#
#%# family=auto
#%# capabilities=autoconf
#
# 2011/05/20 - pmoranga - initial version
#
# 2012/01/27 - Sébastien Gross
# - Fix lvdisplay path
. $MUNIN_LIBDIR/plugins/plugin.sh
lvdisplay=$(which lvdisplay)
if [ "$1" = "autoconf" ]; then
if test -n "${lvdisplay}"; then
echo yes
else
echo "no (lvdisplay not found)"
fi
exit 0
fi
if [ "$1" = "config" ]; then
echo 'graph_title Allocated space for snapshot'
echo 'graph_vlabel %'
echo 'graph_category disk'
echo 'graph_args -l 0 -u 100 -r'
fi
${lvdisplay} -C | awk '$3 ~ /^s/{print}' | while read line; do
name="$(echo $line | awk '{print $1}')"
id="$(clean_fieldname "$name")"
origin="$(echo $line | awk '{print $5}')"
origin="$(clean_fieldname "$origin")"
percent="$(echo $line | awk '{print $6}')"
if [ "$1" = "config" ]; then
echo "$id.label $name snapshot of $origin"
else
echo "$id.value $percent"
fi
done