Initial git import

check_zpools

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+#!/usr/bin/env bash
+#########################################################################
+# Script:       check_zpools.sh
+# Purpose:      Nagios plugin to monitor status of zfs pool
+# Authors:      Aldo Fabi             First version (2006-09-01)
+#               Vitaliy Gladkevitch   Forked (2013-02-04)
+#               Claudio Kuenzler      Complete redo, perfdata, etc (2013-2014)
+# Doc:          http://www.claudiokuenzler.com/nagios-plugins/check_zpools.php
+# History:
+# 2006-09-01    Original first version
+# 2006-10-04    Updated (no change history known)
+# 2013-02-04    Forked and released
+# 2013-05-08    Make plugin work on different OS, pepp up plugin
+# 2013-05-09    Bugfix in exit code handling
+# 2013-05-10    Removed old exit vars (not used anymore)
+# 2013-05-21    Added performance data (percentage used)
+# 2013-07-11    Bugfix in zpool health check
+# 2014-02-10    Bugfix in threshold comparison
+# 2014-03-11    Allow plugin to run without enforced thresholds
+#########################################################################
+### Begin vars
+STATE_OK=0 # define the exit code if status is OK
+STATE_WARNING=1 # define the exit code if status is Warning
+STATE_CRITICAL=2 # define the exit code if status is Critical
+STATE_UNKNOWN=3 # define the exit code if status is Unknown
+# Set path
+PATH=$PATH:/usr/sbin:/sbin
+export PATH
+### End vars
+#########################################################################
+help="check_zpools.sh (c) 2006-2014 several authors\n
+Usage: $0 -p (poolname|ALL) [-w warnpercent] [-c critpercent]\n
+Example: $0 -p ALL -w 80 -c 90"
+#########################################################################
+# Check necessary commands are available
+for cmd in zpool awk [
+do
+ if ! `which ${cmd} 1>/dev/null`
+ then
+ echo "UNKNOWN: ${cmd} does not exist, please check if command exists and PATH is correct"
+ exit ${STATE_UNKNOWN}
+ fi
+done
+#########################################################################
+# Check for people who need help - aren't we all nice ;-)
+if [ "${1}" = "--help" -o "${#}" = "0" ];
+       then
+       echo -e "${help}";
+       exit ${STATE_UNKNOWN};
+fi
+#########################################################################
+# Get user-given variables
+while getopts "p:w:c:" Input;
+do
+       case ${Input} in
+       p)      pool=${OPTARG};;
+       w)      warn=${OPTARG};;
+       c)      crit=${OPTARG};;
+       *)      echo -e $help
+               exit $STATE_UNKNOWN
+               ;;
+       esac
+done
+#########################################################################
+# Did user obey to usage?
+if [ -z $pool ]; then echo -e $help; exit ${STATE_UNKNOWN}; fi
+#########################################################################
+# Verify threshold sense
+if [[ -n $warn ]] && [[ -z $crit ]]; then echo "Both warning and critical thresholds must be set"; exit $STATE_UNKNOWN; fi
+if [[ -z $warn ]] && [[ -n $crit ]]; then echo "Both warning and critical thresholds must be set"; exit $STATE_UNKNOWN; fi
+if [[ $warn -gt $crit ]]; then echo "Warning threshold cannot be greater than critical"; exit $STATE_UNKNOWN; fi
+#########################################################################
+# What needs to be checked?
+## Check all pools
+if [ $pool = "ALL" ]
+then
+  POOLS=($(zpool list -Ho name))
+  p=0
+  for POOL in ${POOLS[*]}
+  do 
+    CAPACITY=$(zpool list -Ho capacity $POOL | awk -F"%" '{print $1}')
+    HEALTH=$(zpool list -Ho health $POOL)
+    # Check with thresholds
+    if [[ -n $warn ]] && [[ -n $crit ]]
+    then
+      if [[ $CAPACITY -ge $crit ]]
+      then error[${p}]="POOL $POOL usage is CRITICAL (${CAPACITY}%)"; fcrit=1
+      elif [[ $CAPACITY -ge $warn && $CAPACITY -lt $crit ]]
+      then error[$p]="POOL $POOL usage is WARNING (${CAPACITY}%)"
+      elif [ $HEALTH != "ONLINE" ]
+      then error[${p}]="$POOL health is $HEALTH"; fcrit=1
+      fi
+    # Check without thresholds
+    else 
+      if [ $HEALTH != "ONLINE" ]
+      then error[${p}]="$POOL health is $HEALTH"; fcrit=1
+      fi
+    fi
+    perfdata[$p]="$POOL=${CAPACITY}% "
+    let p++
+  done
+
+  if [[ ${#error[*]} -gt 0 ]]
+  then 
+    if [[ $fcrit -eq 1 ]]; then exit_code=2; else exit_code=1; fi
+    echo "ZFS POOL ALARM: ${error[*]}|${perfdata[*]}"; exit ${exit_code}
+  else echo "ALL ZFS POOLS OK (${POOLS[*]})|${perfdata[*]}"; exit 0
+  fi
+  
+## Check single pool
+else 
+  CAPACITY=$(zpool list -Ho capacity $pool | awk -F"%" '{print $1}')
+  HEALTH=$(zpool list -Ho health $pool)
+
+  if [[ -n $warn ]] && [[ -n $crit ]]
+  then 
+    # Check with thresholds
+    if [ $HEALTH != "ONLINE" ]; then echo "ZFS POOL $pool health is $HEALTH|$pool=${CAPACITY}%"; exit ${STATE_CRITICAL}
+    elif [[ $CAPACITY -gt $crit ]]; then echo "ZFS POOL $pool usage is CRITICAL (${CAPACITY}%|$pool=${CAPACITY}%)"; exit ${STATE_CRITICAL}
+    elif [[ $CAPACITY -gt $warn && $CAPACITY -lt $crit ]]; then echo "ZFS POOL $pool usage is WARNING (${CAPACITY}%)|$pool=${CAPACITY}%"; exit ${STATE_WARNING}
+    else echo "ALL ZFS POOLS OK ($pool)|$pool=${CAPACITY}%"; exit ${STATE_OK}
+    fi
+  else
+    # Check without thresholds
+    if [ $HEALTH != "ONLINE" ]
+    then echo "ZFS POOL $pool health is $HEALTH|$pool=${CAPACITY}%"; exit ${STATE_CRITICAL}
+    else echo "ALL ZFS POOLS OK ($pool)|$pool=${CAPACITY}%"; exit ${STATE_OK}
+    fi
+  fi 
+
+fi
+
+echo "UKNOWN - Should never reach this part"
+exit ${STATE_UNKNOWN}