Munin contributed plugins

#!/bin/sh

# Detect and display Linux sw-raid mismatch count

# Copyright (C) 2011 Rory Jaffe <rsjaffe@gmail.com>

# derived from md_sync_speed by Kristian Lyngstøl

# Copyright (C) 2010 Kristian Lyngstøl <kristian@bohemians.org>

#

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 2 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License along

# with this program; if not, write to the Free Software Foundation, Inc.,

# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

#####

#

# Magic Markers:

# #%# family=auto

# #%# capabilities=autoconf

targets=`ls /sys/devices/virtual/block/*/md/mismatch_cnt 2> /dev/null | cut -d/ -f6`

returnval=$?

if [ "x$1" = "xautoconf" ]; then

	if [ -z "$targets" ]; then

		echo "no (no md devices found under /sys/devices/virtual/block/*/md/mismatch_cnt)"

	elif [ "x$returnval" != "x0" ]; then

		echo "no (discovery of md devices failed strangely)"

	else

		echo "yes"

	fi

	exit 0

fi

if [ "x$1" = "xconfig" ]; then

	cat << __EOF__

graph_title Software-raid mismatch count

graph_args -l 0

graph_info Display mismatch count of software raid devices

graph_category disk

graph_vlabel Count

__EOF__

	for target in $targets; do

		echo "$target.label $target"

		echo "$target.critical 1"

		echo "$target.info Mismatch count for software raid device $target"

	done

	exit

fi

for target in $targets; do

	echo $target.value $(cat /sys/devices/virtual/block/$target/md/mismatch_cnt)

done