<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"> <HTML> <HEAD> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1"> <META NAME="Generator" CONTENT="MS Exchange Server version 6.5.7650.28"> <TITLE>check_sensors rework</TITLE> </HEAD> <BODY>  The official check_sensors plugin didn't report any info other than a regexp 'ALARM' from lm_sensors. I rewrote the plugin to send data, and have been making nice plots with nagios-grapher a few days now. This version reports cpu, motherboard and hard drive temperatures, fan speeds and voltages (in separate instances). Warning and critical level setting only affects cpu temperature and all fans. By default this plugin should work like the earlier version, the switches modify the operation mode. See --help for more information. -- #!/usr/bin/env bash # gets temperature, fan speed and voltages from lm_sensors # and smartctl for HDD temp # Copyright (C) 2006 Mikael Lammentausta PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/usr/nagios/sbin:/usr/local/nagios/sbin PROGNAME=`basename $0` PROGPATH=`echo $0 | sed -e 's,[\\/][^\\/][^\\/]*$,,'` REVISION=`echo '$Revision: 2.0 $' | sed -e 's/[^0-9.]//g'` #. $PROGPATH/utils.sh print_usage() { echo "Usage: $PROGNAME [options]" echo " e.g. $PROGNAME -T temperature -w 50 -c 60 -d /dev/hda,/dev/hdb" echo echo "Options:" echo -e "\t --help | -h print help" echo -e "\t --version | -V print version" echo -e "\t --verbose | -v be verbose" echo -e "\t --type | -T [type] " echo -e "\t temperature check and print temperature data" echo -e "\t voltages check and print voltage data" echo -e "\t fan check and print fan data" echo -e "\t -w [value] set warning value" echo -e "\t -c [value] set critical value" echo -e "\t -d [hdd drives] set hard drive to scan, comma-separated" echo -e "\t -dd [driver type] set hard drive type for smartctl (default ata)" echo echo "If no options are given, $PROGRAME will print only status." echo "NOTE: you can only ask one data type at once, $PROGNAME will" echo " not output temp, voltage and fan info at the same time." echo " Critical/warning level only watches the CPU temperature." echo " You cannot set levels for voltages." echo } print_help() { print_revision $PROGNAME $REVISION echo echo "This plugin checks hardware status using the lm_sensors package." echo print_usage echo support exit 3 } # set defaults check_temp=0 check_voltages=0 check_fan=0 check_smart=0 isverbose=0 hddtype="ata" # get the data sensordata=$(sensors 2>&1) status=$? # test status of lm_sensors if [ ! "$(type -p sensors)" ]; then echo "SENSORS UNKNOWN - command not found (did you install lmsensors?)" exit -1 elif [ ! "$(type -p smartctl)" ] && [ ${check_smart} -eq 1 ]; then echo "Smartctl binary not found - no data available from hard drives" echo check_smart=0 elif test ${status} -ne 0 ; then echo "WARNING - sensors returned state $status" exit -1 elif [ $check_smart -eq 1 ] && [ ! "$hdd_drive" ]; then echo "No HDD drive defined. Use the -d switch." exit -1 fi # all is ok if [ $isverbose -eq 1 ]; then echo -e "${sensordata}" fi # put the multiple items given at the prompt to an array form_hdd_array() { IFS_bak="$IFS" IFS="," local drive hdd_drives[0]="reserved" for drive in ${1}; do hdd_drives[${#hdd_drives[@]}]="$drive" done IFS="$IFS_bak" } # check functions check_temp() { cpu_temp="$(grep -i 'cpu temp' <<< "${sensordata}" | \ grep -Eo '[0-9\.]+[[:punct:]]?[ ]?[CF]+' | head -n 1)" mobo_temp="$(grep -i 'M/B temp' <<< "${sensordata}" | \ grep -Eo '\+[0-9]*[[:punct:]]?[ ]?[CF]+' | head -n 1)" local drive hdd_temp[0]="reserved" for drive in $(seq 1 1 ${#hdd_drives[@]}); do [ -e "${hdd_drives[$drive]}" ] && \ hdd_temp[${#hdd_temp[@]}]="$(smartctl -A ${hdd_drives[$drive]} -d $hddtype | \ grep -i temperature | \ awk '{for (i=10; i<=NF; i++) printf("%s ",$i);printf ("\n")}') C" done } # check fan speed check_fan() { fans="$(grep -i 'fan' <<< "${sensordata}" | cut -d'(' -f 1 )" } # check voltages check_voltages() { # parse all voltages nicely and put into one string voltages="$(sensors | grep -E '[0-9]{2}\ V' | \ cut -d'(' -f 1 | sed 's/\ *//g ; s/:/\ =\ /' | \ tr '\n' '; ' )" } main() { # temperature if [ $check_temp -eq 1 ]; then check_temp local cpu_status=0 # if either temp exceeds critical.. [ "$critical" ] && \ if [ $(grep -Eo '[0-9]+' <<< ${cpu_temp}) -ge $critical ]; then # [ $(grep -Eo '[0-9]+' <<< ${mobo_temp}) -ge $critical ]; then echo -n "[CRITICAL] " cpu_status=2 fi # if either temp exceeds warning... [ "$warning" ] && \ if [ $(grep -Eo '[0-9]+' <<< ${cpu_temp}) -ge $warning ]; then # [ $(grep -Eo '[0-9]+' <<< ${mobo_temp}) -ge $warning ]; then echo "[WARNING] " cpu_status=1 fi # output data echo -n "CPU = ${cpu_temp} MOTHERBOARD = ${mobo_temp} " for drive in $(seq 1 1 ${#hdd_drives[@]}); do echo -n "${hdd_drives[$drive]} = ${hdd_temp[$drive]} " done exit $cpu_status # fan elif [ $check_fan -eq 1 ]; then check_fan local fan_status=0 local worst_state=0 IFS_bak="$IFS" IFS=$'\n' for fan in $fans; do fan_status=0 fan_name="$(awk -F':' {'print $1'} <<< $fan )" speed="$(awk /[0-9]+/{'print $2'} <<< $fan)" # if a fan exceeds critical.. [ "$critical" ] && \ if [ $speed -le $critical ]; then fan_status=2 fi # if a fan exceeds warning.. [ "$warning" ] && \ if [ $speed -le $warning ]; then fan_status=1 fi # normal status -eq 0 [ $fan_status -eq 2 ] && echo -n "[CRITICAL]: " [ $fan_status -eq 1 ] && echo -n "[WARNING]: " echo -n "${fan_name} = ${speed} RPM " # remember worst state [ $fan_status -gt $worst_state ] && $worst_state=$fan_status done echo exit $worst_state # voltages elif [ $check_voltages -eq 1 ]; then # no critical/warning for voltages! check_voltages echo "$voltages" exit 0 # default operation else if echo ${sensordata} | egrep ALARM > /dev/null; then echo SENSOR CRITICAL - Sensor alarm detected! exit 2 else echo sensor ok exit 0 fi fi } # parse cmd arguments if [ "$#" -gt 0 ]; then while [ "$#" -gt 0 ]; do case "$1" in '--help'|'-h') print_help exit 3 ;; '--version'|'-V') print_revision $PROGNAME $REVISION exit 3 ;; '--verbose'|'-v') isverbose=1 shift 1 ;; '-T'|'--type') case $2 in 'temp'|'temperature') check_temp=1 check_smart=1 ;; 'voltages') check_voltages=1 ;; 'fan') check_fan=1 ;; *) echo "Unknown type!" exit 3 ;; esac shift 2 ;; '-c') critical="$2" shift 2 ;; '-w') warning="$2" shift 2 ;; '-d') form_hdd_array "$2" # drives are now in $hdd_drives[] shift 2 ;; '-dd') hddtype="$2" ;; *) echo "Unknown option!" print_usage exit 3 ;; esac done fi main </BODY> </HTML>