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check_snmp_synology.sh
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#!/bin/bash
#
#
# The MIT License (MIT)
#
# Copyright (c) 2016, Roland Rickborn ([email protected])
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
# check_snmp_synology for nagios version 2.4
# See https://exchange.nagios.org/directory/Plugins/Network-and-Systems-Management/Others/Synology-status/details
#
# 16.04.2015 Nicolas Ordonez, Switzerland
# 05.10.2015 Roland Rickborn <[email protected]>, Germany
# 29.02.2016 j-ed, https://github.com/j-ed
# 10.05.2016 Luiz Henrique De Andrade, luizhandrade
#---------------------------------------------------
# this plugin checks the health of your Synology NAS
# - System status (Power, Fans)
# - Disks status
# - RAID status
# - DSM update status
# - Temperature Warning and Critical
# - UPS information
#
# Tested with DSM 5.0, 5.1 & 5.2
#---------------------------------------------------
# Based on http://ukdl.synology.com/download/Document/MIBGuide/Synology_DiskStation_MIB_Guide.pdf
#---------------------------------------------------
# actual number disk limit = 52 disks per Synology
#---------------------------------------------------
SNMPWALK=$(which snmpwalk)
SNMPGET=$(which snmpget)
SNMPVersion="3"
SNMPV2Community="public"
SNMPTimeout="10"
warningTemperature="50"
criticalTemperature="60"
warningStorage="80"
criticalStorage="95"
hostname=""
healthWarningStatus=0
healthCriticalStatus=0
healthString=""
verbose="no"
ups="no"
perfDataTempString=""
perfDataStorageString=""
perfData="no"
dsmcheck="no"
#OID declarations
OID_syno="1.3.6.1.4.1.6574"
OID_model="1.3.6.1.4.1.6574.1.5.1.0"
OID_serialNumber="1.3.6.1.4.1.6574.1.5.2.0"
OID_DSMVersion="1.3.6.1.4.1.6574.1.5.3.0"
OID_DSMUpgradeAvailable="1.3.6.1.4.1.6574.1.5.4.0"
OID_systemStatus="1.3.6.1.4.1.6574.1.1.0"
OID_temperature="1.3.6.1.4.1.6574.1.2.0"
OID_powerStatus="1.3.6.1.4.1.6574.1.3.0"
OID_systemFanStatus="1.3.6.1.4.1.6574.1.4.1.0"
OID_CPUFanStatus="1.3.6.1.4.1.6574.1.4.2.0"
OID_disk=""
OID_disk2=""
OID_diskID="1.3.6.1.4.1.6574.2.1.1.2"
OID_diskModel="1.3.6.1.4.1.6574.2.1.1.3"
OID_diskStatus="1.3.6.1.4.1.6574.2.1.1.5"
OID_diskTemp="1.3.6.1.4.1.6574.2.1.1.6"
OID_RAID=""
OID_RAIDName="1.3.6.1.4.1.6574.3.1.1.2"
OID_RAIDStatus="1.3.6.1.4.1.6574.3.1.1.3"
OID_Storage="1.3.6.1.2.1.25.2.3.1"
OID_StorageDesc="1.3.6.1.2.1.25.2.3.1.3"
OID_StorageAllocationUnits="1.3.6.1.2.1.25.2.3.1.4"
OID_StorageSize="1.3.6.1.2.1.25.2.3.1.5"
OID_StorageSizeUsed="1.3.6.1.2.1.25.2.3.1.6"
OID_UpsModel="1.3.6.1.4.1.6574.4.1.1.0"
OID_UpsSN="1.3.6.1.4.1.6574.4.1.3.0"
OID_UpsStatus="1.3.6.1.4.1.6574.4.2.1.0"
OID_UpsLoad="1.3.6.1.4.1.6574.4.2.12.1.0"
OID_UpsBatteryCharge="1.3.6.1.4.1.6574.4.3.1.1.0"
OID_UpsBatteryChargeWarning="1.3.6.1.4.1.6574.4.3.1.4.0"
usage()
{
echo "usage: ./check_snmp_synology [OPTION] -u [user] -p [pass] -h [hostname]"
echo "options:"
echo " -u [snmp username] Username for SNMPv3"
echo " -p [snmp password] Password for SNMPv3"
echo ""
echo " -2 [community name] Use SNMPv2 (no need user/password) & define community name (default $SNMPV2Community)"
echo ""
echo " -w [warning temp] Warning temperature (for disks & synology) (default $warningTemperature)"
echo " -c [critical temp] Critical temperature (for disks & synology) (default $criticalTemperature)"
echo ""
echo " -U Show informations about the connected UPS (default no)"
echo " -v Verbose - print all informations about your Synology (default $verbose)"
echo " -f PerfData - print performance data for temperature and storage usage percentage (default $perfData)"
echo " -d Check DSM Version - check if an update for DiskStation Manager is available (default $dsmcheck)"
echo ""
echo ""
echo "examples: ./check_snmp_synology -u admin -p 1234 -h nas.intranet"
echo " ./check_snmp_synology -u admin -p 1234 -h nas.intranet -v"
echo " ./check_snmp_synology -2 public -h nas.intranet"
exit 3
}
if [ "$1" == "--help" ]; then
usage
exit 0
fi
while getopts 2:w:c:u:p:h:Uvfd OPTNAME;
do
case "$OPTNAME" in
u) SNMPUser="$OPTARG";;
p) SNMPPassword="$OPTARG";;
h) hostname="$OPTARG";;
v) verbose="yes";;
2) SNMPVersion="2"
SNMPV2Community="$OPTARG";;
w) warningTemperature="$OPTARG";;
c) criticalTemperature="$OPTARG";;
U) ups="yes";;
f) perfData="yes";;
d) dsmcheck="yes";;
*) usage;;
esac
done
if [ "$warningTemperature" -gt "$criticalTemperature" ] ; then
echo "Critical temperature must be higher than warning temperature"
echo "Warning temperature: $warningTemperature"
echo "Critical temperature: $criticalTemperature"
echo ""
echo "For more information: ./${0##*/} --help"
exit 1
fi
if [ "$warningStorage" -gt "$criticalStorage" ] ; then
echo "The Critical storage usage percentage must be higher than the warning storage usage percentage"
echo "Warning: $warningStorage"
echo "Critical: $criticalStorage"
echo ""
echo "For more information: ./${0##*/} --help"
exit 1
fi
if [ "$hostname" = "" ] || ([ "$SNMPVersion" = "3" ] && [ "$SNMPUser" = "" ]) || ([ "$SNMPVersion" = "3" ] && [ "$SNMPPassword" = "" ]) ; then
usage
else
if [ "$SNMPVersion" = "2" ] ; then
SNMPArgs=" -OQne -v 2c -c $SNMPV2Community -t $SNMPTimeout"
else
SNMPArgs=" -OQne -v 3 -u $SNMPUser -A $SNMPPassword -l authNoPriv -a MD5 -t $SNMPTimeout"
if [ ${#SNMPPassword} -lt "8" ] ; then
echo "snmpwalk: (The supplied password length is too short.)"
exit 1
fi
fi
tmpRequest=`$SNMPWALK $SNMPArgs $hostname $OID_model 2> /dev/null`
if [ "$?" != "0" ] ; then
echo "CRITICAL - Problem with SNMP request, check user/password/host"
exit 2
fi
nbDisk=`$SNMPWALK $SNMPArgs $hostname $OID_diskID | wc -l`
nbRAID=`$SNMPWALK $SNMPArgs $hostname $OID_RAIDName | wc -l`
for i in `seq 1 $nbDisk`;
do
if [ $i -lt 25 ] ; then
OID_disk="$OID_disk $OID_diskID.$(($i-1)) $OID_diskModel.$(($i-1)) $OID_diskStatus.$(($i-1)) $OID_diskTemp.$(($i-1)) "
else
OID_disk2="$OID_disk2 $OID_diskID.$(($i-1)) $OID_diskModel.$(($i-1)) $OID_diskStatus.$(($i-1)) $OID_diskTemp.$(($i-1)) "
fi
done
for i in `seq 1 $nbRAID`;
do
OID_RAID="$OID_RAID $OID_RAIDName.$(($i-1)) $OID_RAIDStatus.$(($i-1))"
done
if [ "$ups" = "yes" ] && [ "$dsmcheck" = "yes" ]; then
syno=`$SNMPGET $SNMPArgs $hostname $OID_model $OID_serialNumber $OID_DSMVersion $OID_systemStatus $OID_temperature $OID_powerStatus $OID_systemFanStatus $OID_CPUFanStatus $OID_disk $OID_RAID $OID_DSMUpgradeAvailable $OID_UpsModel $OID_UpsSN $OID_UpsStatus $OID_UpsLoad $OID_UpsBatteryCharge $OID_UpsBatteryChargeWarning 2> /dev/null`
elif [ "$ups" = "no" ] && [ "$dsmcheck" = "yes" ] ; then
syno=`$SNMPGET $SNMPArgs $hostname $OID_model $OID_serialNumber $OID_DSMVersion $OID_systemStatus $OID_temperature $OID_powerStatus $OID_systemFanStatus $OID_CPUFanStatus $OID_disk $OID_RAID $OID_DSMUpgradeAvailable 2> /dev/null`
elif [ "$ups" = "yes" ] && [ "$dsmcheck" = "no" ] ; then
syno=`$SNMPGET $SNMPArgs $hostname $OID_model $OID_serialNumber $OID_DSMVersion $OID_systemStatus $OID_temperature $OID_powerStatus $OID_systemFanStatus $OID_CPUFanStatus $OID_disk $OID_RAID $OID_UpsModel $OID_UpsSN $OID_UpsStatus $OID_UpsLoad $OID_UpsBatteryCharge $OID_UpsBatteryChargeWarning 2> /dev/null`
elif [ "$ups" = "no" ] && [ "$dsmcheck" = "no" ] ; then
syno=`$SNMPGET $SNMPArgs $hostname $OID_model $OID_serialNumber $OID_DSMVersion $OID_systemStatus $OID_temperature $OID_powerStatus $OID_systemFanStatus $OID_CPUFanStatus $OID_disk $OID_RAID 2> /dev/null`
fi
if [ "$OID_disk2" != "" ]; then
syno2=`$SNMPGET $SNMPArgs $hostname $OID_disk2 2> /dev/null`
syno=$(echo "$syno";echo "$syno2";)
fi
model=$(echo "$syno" | grep $OID_model | cut -d "=" -f2 | sed -e 's/^[ \t]*//' -e 's/[ \t]*$//')
serialNumber=$(echo "$syno" | grep $OID_serialNumber | cut -d "=" -f2 | sed -e 's/^[ \t]*//' -e 's/[ \t]*$//')
DSMVersion=$(echo "$syno" | grep $OID_DSMVersion | cut -d "=" -f2 | sed -e 's/^[ \t]*//' -e 's/[ \t]*$//')
healthString="Synology $model (s/n:$serialNumber, $DSMVersion)"
DSMUpgradeAvailable=$(echo "$syno" | grep $OID_DSMUpgradeAvailable | cut -d "=" -f2 | sed 's/^[ \t]*//;s/[ \t]*$//')
case $DSMUpgradeAvailable in
"1") DSMUpgradeAvailable="Available"; healthWarningStatus=1; healthString="$healthString, DSM update available";;
"2") DSMUpgradeAvailable="Unavailable";;
"3") DSMUpgradeAvailable="Connecting";;
"4") DSMUpgradeAvailable="Disconnected"; healthWarningStatus=1; healthString="$healthString, DSM Update Disconnected";;
"5") DSMUpgradeAvailable="Others"; healthWarningStatus=1; healthString="$healthString, Check DSM Update";;
esac
RAIDName=$(echo "$syno" | grep $OID_RAIDName | cut -d "=" -f2 | sed -e 's/^[ \t]*//' -e 's/[ \t]*$//')
RAIDStatus=$(echo "$syno" | grep $OID_RAIDStatus | cut -d "=" -f2 | sed 's/^[ \t]*//;s/[ \t]*$//')
systemStatus=$(echo "$syno" | grep $OID_systemStatus | cut -d "=" -f2 | sed 's/^[ \t]*//;s/[ \t]*$//')
temperature=$(echo "$syno" | grep $OID_temperature | cut -d "=" -f2 | sed 's/^[ \t]*//;s/[ \t]*$//')
powerStatus=$(echo "$syno" | grep $OID_powerStatus | cut -d "=" -f2 | sed 's/^[ \t]*//;s/[ \t]*$//')
systemFanStatus=$(echo "$syno" | grep $OID_systemFanStatus | cut -d "=" -f2 | sed 's/^[ \t]*//;s/[ \t]*$//')
CPUFanStatus=$(echo "$syno" | grep $OID_CPUFanStatus | cut -d "=" -f2 | sed 's/^[ \t]*//;s/[ \t]*$//')
#Check system status
if [ "$systemStatus" = "1" ] ; then
systemStatus="Normal"
else
systemStatus="Failed"
healthCriticalStatus=1
healthString="$healthString, System status: $systemStatus "
fi
#Check system temperature
if [ "$temperature" -gt "$warningTemperature" ] ; then
if [ "$temperature" -gt "$criticalTemperature" ] ; then
temperature="$temperature (CRITICAL)"
healthCriticalStatus=1
healthString="$healthString, temperature: $temperature "
else
temperature="$temperature (WARNING)"
healthWarningStatus=1
healthString="$healthString, temperature: $temperature "
fi
else
temperature="$temperature (Normal)"
fi
#Check power status
if [ "$powerStatus" = "1" ] ; then
powerStatus="Normal"
else
powerStatus="Failed";
healthCriticalStatus=1
healthString="$healthString, Power status: $powerStatus "
fi
#Check system fan status
if [ "$systemFanStatus" = "1" ] ; then
systemFanStatus="Normal"
else
systemFanStatus="Failed";
healthCriticalStatus=1
healthString="$healthString, System fan status: $systemFanStatus "
fi
#Check CPU fan status
if [ "$CPUFanStatus" = "1" ] ; then
CPUFanStatus="Normal"
else
CPUFanStatus="Failed";
healthCriticalStatus=1
healthString="$healthString, CPU fan status: $CPUFanStatus "
fi
#Check all disk status
for i in `seq 1 $nbDisk`;
do
diskID[$i]=$(echo "$syno" | grep "$OID_diskID.$(($i-1)) " | cut -d "=" -f2 | sed -e 's/^[ \t]*//' -e 's/[ \t]*$//')
diskModel[$i]=$(echo "$syno" | grep "$OID_diskModel.$(($i-1)) " | cut -d "=" -f2 | sed -e 's/^[ \t]*//' -e 's/[ \t]*$//')
diskStatus[$i]=$(echo "$syno" | grep "$OID_diskStatus.$(($i-1)) " | cut -d "=" -f2 | sed 's/^[ \t]*//;s/[ \t]*$//')
diskTemp[$i]=$(echo "$syno" | grep "$OID_diskTemp.$(($i-1)) " | cut -d "=" -f2 | sed 's/^[ \t]*//;s/[ \t]*$//')
#Store perfData
perfDataTempString="$perfDataTempString 'Temp Disk $i'=${diskTemp[$i]};$warningTemperature;$criticalTemperature;0" ;
case ${diskStatus[$i]} in
"1") diskStatus[$i]="Normal"; ;;
"2") diskStatus[$i]="Initialized"; ;;
"3") diskStatus[$i]="NotInitialized"; ;;
"4") diskStatus[$i]="SystemPartitionFailed"; healthCriticalStatus=1; healthString="$healthString, problem with ${diskID[$i]} (model:${diskModel[$i]}) status:${diskStatus[$i]} temperature:${diskTemp[$i]}";;
"5") diskStatus[$i]="Crashed"; healthCriticalStatus=1; healthString="$healthString, problem with ${diskID[$i]} (model:${diskModel[$i]}) status:${diskStatus[$i]} temperature:${diskTemp[$i]}";;
esac
if [ "${diskTemp[$i]}" -gt "$warningTemperature" ] ; then
if [ "${diskTemp[$i]}" -gt "$criticalTemperature" ] ; then
diskTemp[$i]="${diskTemp[$i]} (CRITICAL)"
healthCriticalStatus=1;
healthString="$healthString, ${diskID[$i]} temperature: ${diskTemp[$i]}"
else
diskTemp[$i]="${diskTemp[$i]} (WARNING)"
healthWarningStatus=1;
healthString="$healthString, ${diskID[$i]} temperature: ${diskTemp[$i]}"
fi
fi
done
#Check all RAID volume status
for i in `seq 1 $nbRAID`;
do
RAIDName[$i]=$(echo "$syno" | grep $OID_RAIDName.$(($i-1)) | cut -d "=" -f2)
RAIDStatus[$i]=$(echo "$syno" | grep $OID_RAIDStatus.$(($i-1)) | cut -d "=" -f2 | sed 's/^[ \t]*//;s/[ \t]*$//')
case ${RAIDStatus[$i]} in
"1") RAIDStatus[$i]="Normal"; ;;
"2") RAIDStatus[$i]="Repairing"; healthWarningStatus=1; healthString="$healthString, RAID status (${RAIDName[$i]}): ${RAIDStatus[$i]} ";;
"3") RAIDStatus[$i]="Migrating"; healthWarningStatus=1; healthString="$healthString, RAID status (${RAIDName[$i]}): ${RAIDStatus[$i]} ";;
"4") RAIDStatus[$i]="Expanding"; healthWarningStatus=1; healthString="$healthString, RAID status (${RAIDName[$i]}): ${RAIDStatus[$i]} ";;
"5") RAIDStatus[$i]="Deleting"; healthWarningStatus=1; healthString="$healthString, RAID status (${RAIDName[$i]}): ${RAIDStatus[$i]} ";;
"6") RAIDStatus[$i]="Creating"; healthWarningStatus=1; healthString="$healthString, RAID status (${RAIDName[$i]}): ${RAIDStatus[$i]} ";;
"7") RAIDStatus[$i]="RaidSyncing"; healthWarningStatus=1; healthString="$healthString, RAID status (${RAIDName[$i]}): ${RAIDStatus[$i]} ";;
"8") RAIDStatus[$i]="RaidParityChecking"; healthWarningStatus=1; healthString="$healthString, RAID status (${RAIDName[$i]}): ${RAIDStatus[$i]} ";;
"9") RAIDStatus[$i]="RaidAssembling"; healthWarningStatus=1; healthString="$healthString, RAID status (${RAIDName[$i]}): ${RAIDStatus[$i]} ";;
"10") RAIDStatus[$i]="Canceling"; healthWarningStatus=1; healthString="$healthString, RAID status (${RAIDName[$i]}): ${RAIDStatus[$i]} ";;
"11") RAIDStatus[$i]="Degrade"; healthCriticalStatus=1; healthString="$healthString, RAID status (${RAIDName[$i]}): ${RAIDStatus[$i]} ";;
"12") RAIDStatus[$i]="Crashed"; healthCriticalStatus=1; healthString="$healthString, RAID status (${RAIDName[$i]}): ${RAIDStatus[$i]} ";;
esac
done
if [ "$verbose" = "yes" ] ; then
echo "Synology model: $model" ;
echo "Synology s/n: $serialNumber" ;
echo "DSM Version: $DSMVersion" ;
echo "DSM update: $DSMUpgradeAvailable" ;
echo "System Status: $systemStatus" ;
echo "Temperature: $temperature" ;
echo "Power Status: $powerStatus" ;
echo "System Fan Status: $systemFanStatus" ;
echo "CPU Fan Status: $CPUFanStatus" ;
echo "Number of disks: $nbDisk" ;
for i in `seq 1 $nbDisk`;
do
echo " ${diskID[$i]} (model:${diskModel[$i]}) status:${diskStatus[$i]} temperature:${diskTemp[$i]}" ;
done
echo "Number of RAID volume: $nbRAID" ;
for i in `seq 1 $nbRAID`;
do
echo " ${RAIDName[$i]} status:${RAIDStatus[$i]}" ;
done
# Display UPS information
if [ "$ups" = "yes" ] ; then
upsModel=$(echo "$syno" | grep $OID_UpsModel | cut -d "=" -f2 | sed -e 's/^[ \t]*//' -e 's/[ \t]*$//')
upsSN=$(echo "$syno" | grep $OID_UpsSN | cut -d "=" -f2 | sed -e 's/^[ \t]*//' -e 's/[ \t]*$//')
upsStatus=$(echo "$syno" | grep $OID_UpsStatus | cut -d "=" -f2 | sed -e 's/^[ \t]*//' -e 's/[ \t]*$//')
upsLoad=$(echo "$syno" | grep $OID_UpsLoad | cut -d "=" -f2 | sed -e 's/^[ \t]*//' -e 's/[ \t]*$//')
upsBatteryCharge=$(echo "$syno" | grep $OID_UpsBatteryCharge | cut -d "=" -f2 | sed -e 's/^[ \t]*//' -e 's/[ \t]*$//')
upsBatteryChargeWarning=$(echo "$syno" | grep $OID_UpsBatteryChargeWarning | cut -d "=" -f2 | sed -e 's/^[ \t]*//' -e 's/[ \t]*$//')
echo "UPS:"
echo " Model: $upsModel"
echo " s/n: $upsSN"
echo " Status: $upsStatus"
echo " Load: $upsLoad"
echo " Battery charge: $upsBatteryCharge"
echo " Battery charge warning:$upsBatteryChargeWarning"
fi
echo "";
fi
if [ "$healthCriticalStatus" = "1" ] && [ "$perfData" == "no" ] ; then
echo "CRITICAL - $healthString"
exit 2
fi
if [ "$healthWarningStatus" = "1" ] && [ "$perfData" == "no" ] ; then
echo "WARNING - $healthString"
exit 1
fi
if [ "$healthCriticalStatus" = "0" ] && [ "$healthWarningStatus" = "0" ] && [ "$perfData" == "no" ] ; then
echo "OK - $healthString is in good health"
exit 0
fi
if [ "$healthCriticalStatus" = "1" ] && [ "$perfData" == "yes" ] ; then
echo "CRITICAL - $healthString | $perfDataTempString"
exit 2
fi
if [ "$healthWarningStatus" = "1" ] && [ "$perfData" == "yes" ] ; then
echo "WARNING - $healthString | $perfDataTempString"
exit 1
fi
if [ "$healthCriticalStatus" = "0" ] && [ "$healthWarningStatus" = "0" ] && [ "$perfData" == "yes" ] ; then
echo "OK - $healthString is in good health | $perfDataTempString"
exit 0
fi
fi
exit 3