contrib-munin/plugins/disk/lvm_snap_used

#!/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