Munin contributed plugins

#!/bin/sh

#

# Script to monitor disk usage.

#

# By PatrickDK

#

# Parameters understood:

#

#       config   (required)

#       autoconf (optional - used by munin-config)

#	    suggest

#

# Needs to be run as root, so the following needs to be added to the config:

# 

#   [lvm_*]

#    user root

#

# $Log$

#

# Magic markers (optional - used by munin-config and installation

# scripts):

#

#%# family=auto

#%# capabilities=autoconf suggest

if [ "$1" = "autoconf" ]; then

    if ! which lvs 2>/dev/null; then

        echo "no (lvs not found)"

    elif ! which vgs 2>/dev/null; then

        echo "no (vgs not found)"

    else

        echo "yes"

    fi

    exit 0

fi

if [ "$1" = "suggest" ]; then

	vgs -o vg_name --noheadings | sed -e 's/\ *//'

	exit 0

fi

vg=`echo $0 | awk '{ sub(".*lvm_","",\$1); print \$1; }'`

clean_name() {

    echo $1 | sed 's/[\/.-]/_/g'

}

if [ "$1" = "config" ]; then

        echo "graph_title Logical Volume Usage($vg)"

        echo 'graph_args --base 1024 -l 0'

        echo 'graph_category disk'

        echo 'graph_info This graph shows disk usage on the machine.'

        echo "free.label free"

        echo "free.draw AREA"

        lvs --units b --nosuffix --noheadings | grep "$vg" | while read i; do

                name=`clean_name $i`

                echo -n "$name.label "

                echo $i | awk '{ print $1 }'

                echo "$name.draw STACK"

        done

        exit 0

fi

i=`vgs --units b --nosuffix --noheadings | grep "$vg"`

echo -n "free.value "

echo $i | awk '{ print $7 }'

lvs --units b --nosuffix --noheadings | grep "$vg" | while read i; do

        name=`clean_name $i`

        echo -n "$name.value "

        echo $i | awk '{ print $4 }'

done