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mirror of https://github.com/opinkerfi/nagios-plugins.git synced 2024-11-05 01:53:44 +01:00

Merge manage.ruv.is:/opt/misc

This commit is contained in:
Pall Sigurdsson 2012-02-22 13:10:15 +00:00
commit 9d8946c1a0

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check_multipath/check_multipath Executable file
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#!/bin/sh
#
# Nagios plugin to check the state of Linux device mapper multipath devices
#
# (C) 2006 Riege Software International GmbH
# Licensed under the General Public License, Version 2
# Contact: Gunther Schlegel, schlegel@riege.com
# Matija Nalis, mnalis+debian@carnet.hr
#
# v1.0 20060220 gs new script
# v1.1 20091020 mnalis fix -n handling to work (parsing not working, ignoring last lun...)
PROGNAME=`basename $0`
PROGPATH=`echo $0 | sed -e 's,[\\/][^\\/][^\\/]*$,,'`
REVISION=`echo '$Revision: 1.12 $' | sed -e 's/[^0-9.]//g'`
MULTIPATH=/sbin/multipath
SUDO=/usr/bin/sudo
LSMOD=/sbin/lsmod
print_usage() {
echo "Usage:"
echo " $PROGNAME [-n NUMPATHS]"
echo ""
echo "Options:"
echo " -n NUMPATHS If specified there must be NUMPATHS paths present for each LUN"
}
print_help() {
print_revision $PROGNAME $REVISION
echo "Check multipath status."
echo ""
print_usage
echo ""
echo "Really simple: runs $MULTIPATH and greps for \"failed\" paths."
echo "if NUMPATHS is specified each LUN must have that number of PATHS present."
echo ""
echo "Requires sudo and multipath-tools"
echo ""
echo "Add this to your sudoers file by running visudo to add access:"
if [ -r /proc/modules ]; then
echo "Cmnd_Alias MULTIPATH=$MULTIPATH -l"
else
echo "Cmnd_Alias MULTIPATH=$MULTIPATH -l, $SUDO"
fi
echo "nagios ALL= NOPASSWD: MULTIPATH"
echo "The user nagios may very well be nobody or someone else depending on your configuration"
echo ""
support
}
NUMPATHS=''
# Information options
case "$1" in
--help)
print_help
exit $STATE_OK
;;
-h)
print_help
exit $STATE_OK
;;
--version)
print_revision $PLUGIN $REVISION
exit $STATE_OK
;;
-V)
print_revision $PLUGIN $REVISION
exit $STATE_OK
;;
-n)
shift
NUMPATHS="$1"
;;
esac
if [ ! -x $MULTIPATH ]; then
echo "MULTIPATH: UNKNOWN - $MULTIPATH not found"
exit $STATE_UNKNOWN
fi
# if not yet root, check sudo
if [ $(id -un) != "root" ]; then
MULTIPATH="$SUDO $MULTIPATH"
# on grsec kernel /proc might be protected
if [ ! -r /proc/modules ]; then
LSMOD="$SUDO $LSMOD"
fi
fi
OUTPUT=$($MULTIPATH -l 2>/dev/null)
if [ $? != 0 ]; then
# Failed. grab more info why
if [ $(id -un) != "root" ] && [ `$SUDO -l | grep -c multipath` -eq 0 ]; then
echo "MULTIPATH: UNKNOWN - sudo not configured"
exit $STATE_UNKNOWN
fi
MODCOUNT=$($LSMOD | grep -c ^dm_multipath)
if [ $MODCOUNT = 0 ]; then
echo "MULTIPATH: UNKNOWN - Module dm-multipath not loaded"
exit $STATE_UNKNOWN
fi
echo "MULTIPATH: $(MULTIPATH -l 2>&1)"
exit $STATE_UNKNOWN
fi
PATHCOUNT=$(echo "$OUTPUT" | wc -l)
if [ $PATHCOUNT -eq 0 ]; then
echo "MULTIPATH: WARNING - No paths defined"
exit $STATEWARNING
fi
FAILCOUNT=$(echo "$OUTPUT" | grep -c failed)
if [ $FAILCOUNT -gt 0 ]; then
echo "MULTIPATH: CRITICAL - $FAILCOUNT paths failed"
exit $STATE_CRITICAL
fi
if [ "$NUMPATHS" ]; then
echo "$OUTPUT" | awk -vnumpaths=$NUMPATHS -vrc=0 -vlun= -vtargets=0 '
/^\[/ {next} # skip flags (lenny)
/^size=/ {next} # skip flags (squeeze)
/^\\/ {next} # skip devinfo (lenny)
/policy=/ {next} # skip devinfo (squeeze)
/^ \\/ {targets++; next} # count targets (lenny)
/[0-9]+:[0-9]+:[0-9]+:[0-9]+/ {
if (/active undef running/) { targets++ } # count targets (squeeze)
next
}
{
# The LUN line
# process if this is not first LUN
if (lun && numpaths != targets) {
printf("CRITICAL: %d of %d paths available for LUN %s\n", targets, numpaths, lun)
rc = 1
}
# reset counter
targets = 0
lun = $0
}
END {
if (lun && numpaths != targets) {
printf("CRITICAL: %d of %d paths available for LUN %s\n", targets, numpaths, lun)
rc = 1
}
exit rc
}
'
if [ $? -gt 0 ]; then
exit $STATE_CRITICAL
fi
fi
echo "MULTIPATH: OK - No failed paths"
exit $STATE_OK
# vim: ts=4:sw=4:noet