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Voici un plugin Nagios en Bourne shell qui peut s'exécuter directement sur les NAS Synology. Il s'appuit sur les scripts développés par Jur Groen et Nicolas Ordonez.
Il vérifiera les éléments suivants :
user@host:~$ cat .ssh/id_rsa.pub | ssh -l root NASip -p 22 'cat >> .ssh/authorized_keys'
user@host:~$ scp -P 22 check_snmp.sh root@NASip:/usr/syno/sbin/
user@host:~$ ssh -l root -p 22 NAS_IP "/usr/syno/sbin/check_snmp.sh -h NAS_IP -u SNMP_LOGIN -p SNMP_PASSWORD -w 80 -c 90"
#! /bin/sh
# check_snmp_synology for nagios version 1.3
# 05.12.2014 shebangthedolphins.net add disk usage check
# 06.11.2014 shebangthedolphins.net
# 03.10.2014 Jur Groen, Syso IT Services, The Netherlands
# 30.04.2013 Nicolas Ordonez, Switzerland
#---------------------------------------------------
# this plugin checks the health of your Synology NAS
# - System status (Power, Fans)
# - Disks status
# - RAID status
# - DSM update status
#
# this plugin now makes use of SNMP V3 for enhanced security
# Tested with DSM 5.0
#---------------------------------------------------
# Based on http://download.synology.com/download/ds/userguide/Synology_DiskStation_MIB_Guide_enu_20110725.pdf
#---------------------------------------------------
#Variables definition
## NAGIOS returns
CRITICAL=2
WARNING=1
OK=0
RETURN=0 #everything's fine, by default
## If arguments found
option_found=0
#on récupére le nombre de partitions
NB_part=$(df -h | grep "/" | grep -v "\(tmpfs\|dev \|rootfs \)" | wc -l)
##OIDs
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_upgradeAvailable="1.3.6.1.4.1.6574.1.5.4.0"
OID_systemStatus="1.3.6.1.4.1.6574.1.1.0"
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_temp="1.3.6.1.4.1.6574.1.2.0"
OID_disk=""
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"
#Tableaux :
#disques[0]="null"
#raids[0]="null"
#Fonctions
FunctionDiskSpace()
{
SORTIE=""
for i in $(seq 1 "$NB_part"); do
PARTITION=$(df -h | grep "/" | tr -s " " | grep -v "\(tmpfs\|dev \|rootfs \)" | head -n "$i" | tail -n 1 | grep "/" | cut -d " " -f 6)
UTI=$(df -h | grep "/" | tr -s " " | grep -v "\(tmpfs\|dev \|rootfs \)" | head -n "$i" | tail -n 1 | grep "/" | cut -d " " -f 5)
DISPO=$(df -h | grep "/" | tr -s " " | grep -v "\(tmpfs\|dev \|rootfs \)" | head -n "$i" | tail -n 1 | grep "/" | cut -d " " -f 4)
SORTIE="$(echo ""$PARTITION" is used at "$UTI", "$DISPO" remaining free space") \n"$SORTIE""
TEST=$(echo "$UTI" | sed 's/%//')
if [ $TEST -gt "$WARNING_SPACE" ]; then
RETURN="$WARNING"
if [ "$TEST" -gt "$CRITICAL_SPACE" ]; then
RETURN="$CRITICAL"
fi
fi
done
if [ "$1" == "Output" ]; then
echo -e "$SORTIE"
fi
}
usage()
{
echo "usage: ./check_snmp_synology -u [snmp username] -p [snmp password] -h [hostname] -w [warning occuped space in % -c [max occuped space in %]"
echo ""
exit 3
}
while getopts u:p:h:c:w: OPTNAME; do
case "$OPTNAME" in
u)
SNMPUSERNAME="$OPTARG"
option_found=1
;;
p)
SNMPPASSWORD="$OPTARG"
option_found=1
;;
h)
HOSTNAME="$OPTARG"
option_found=1
;;
w)
WARNING_SPACE="$OPTARG"
option_found=1
;;
c)
CRITICAL_SPACE="$OPTARG"
option_found=1
;;
*)
usage
;;
esac
done
# Début du script :
if [ "$option_found" -eq "0" ] || [ "$HOSTNAME" == "" ] ; then
usage
else
# On lance la fonction DiskSpace mais sans rien afficher
FunctionDiskSpace NoOutput
nbDISK=$(/usr/syno/sbin/snmpwalk -OQne -v 3 -t 10 -l authNoPriv -u $SNMPUSERNAME -a MD5 -A $SNMPPASSWORD $HOSTNAME .1.3.6.1.4.1.6574.2.1.1.3 2>/dev/null|wc -l)
#si la première connexion SNMP échoue on sort du programme
if [ "$?" != "0" ] ; then
echo "CRITICAL - Problem with SNMP request"
exit "$CRITICAL"
fi
nbRAID=$(/usr/syno/sbin/snmpwalk -OQne -v 3 -t 10 -l authNoPriv -u $SNMPUSERNAME -a MD5 -A $SNMPPASSWORD $HOSTNAME .1.3.6.1.4.1.6574.3.1.1.2 2>/dev/null|wc -l)
for i in $(seq 1 $nbDISK);
do
OID_DISK="$OID_disk $OID_diskID.$(($i-1)) $OID_diskModel.$(($i-1)) $OID_diskStatus.$(($i-1)) $OID_diskTemp.$(($i-1)) "
done
for i in $(seq 1 $nbRAID);
do
OID_RAID="$OID_RAID $OID_RAIDName.$(($i-1)) $OID_RAIDStatus.$(($i-1))"
done
#MODEL
temp=$(/usr/syno/sbin/snmpwalk -OQne -t 10 -v 3 -l authNoPriv -u "$SNMPUSERNAME" -a MD5 -A "$SNMPPASSWORD" "$HOSTNAME" "$OID_model" 2>/dev/null)
model=$(echo $temp | grep $OID_model | cut -d " " -f3 | sed "s/\"//g")
#echo $model
#serialNumber
temp=$(/usr/syno/sbin/snmpwalk -OQne -t 10 -v 3 -l authNoPriv -u "$SNMPUSERNAME" -a MD5 -A "$SNMPPASSWORD" "$HOSTNAME" "$OID_serialNumber" 2>/dev/null)
serialNumber=$(echo $temp | grep $OID_serialNumber | cut -d " " -f3 | sed "s/\"//g")
#echo $serialNumber
#OID_upgradeAvailable
temp=$(/usr/syno/sbin/snmpwalk -OQne -t 10 -v 3 -l authNoPriv -u "$SNMPUSERNAME" -a MD5 -A "$SNMPPASSWORD" "$HOSTNAME" "$OID_upgradeAvailable" 2>/dev/null)
#OID_DSMVersion
temp=$(/usr/syno/sbin/snmpwalk -OQne -t 10 -v 3 -l authNoPriv -u "$SNMPUSERNAME" -a MD5 -A "$SNMPPASSWORD" "$HOSTNAME" "$OID_DSMVersion" 2>/dev/null)
DSMVersion=$(echo $temp | grep $OID_DSMVersion | cut -d "\"" -f2)
#echo "$DSMVersion"
#OID_systemStatus
temp=$(/usr/syno/sbin/snmpwalk -OQne -t 10 -v 3 -l authNoPriv -u "$SNMPUSERNAME" -a MD5 -A "$SNMPPASSWORD" "$HOSTNAME" "$OID_systemStatus" 2>/dev/null)
systemStatus=$(echo $temp | grep $OID_systemStatus | cut -d " " -f3 | sed "s/\"//g")
#echo $systemStatus
#OID_powerStatus
temp=$(/usr/syno/sbin/snmpwalk -OQne -t 10 -v 3 -l authNoPriv -u "$SNMPUSERNAME" -a MD5 -A "$SNMPPASSWORD" "$HOSTNAME" "$OID_powerStatus" 2>/dev/null)
powerStatus=$(echo $temp | grep $OID_powerStatus | cut -d " " -f3 | sed "s/\"//g")
#echo $powerStatus
#OID_systemFanStatus
temp=$(/usr/syno/sbin/snmpwalk -OQne -t 10 -v 3 -l authNoPriv -u "$SNMPUSERNAME" -a MD5 -A "$SNMPPASSWORD" "$HOSTNAME" "$OID_systemFanStatus" 2>/dev/null)
systemFanStatus=$(echo $temp | grep $OID_systemFanStatus | cut -d " " -f3 | sed "s/\"//g")
#echo $systemFanStatus
#OID_CPUFanStatus
temp=$(/usr/syno/sbin/snmpwalk -OQne -t 10 -v 3 -l authNoPriv -u "$SNMPUSERNAME" -a MD5 -A "$SNMPPASSWORD" "$HOSTNAME" "$OID_CPUFanStatus" 2>/dev/null)
CPUFanStatus=$(echo $temp | grep $OID_CPUFanStatus | cut -d " " -f3 | sed "s/\"//g")
#echo $CPUFanStatus
#OID_temp
temp=$(/usr/syno/sbin/snmpwalk -OQne -t 10 -v 3 -l authNoPriv -u "$SNMPUSERNAME" -a MD5 -A "$SNMPPASSWORD" "$HOSTNAME" "$OID_temp" 2>/dev/null)
TEMP=$(echo "$temp" | grep "$OID_temp" | cut -d " " -f3 | sed "s/\"//g")
#echo "$TEMP"
#Etat disques
for i in $(seq 1 "$nbDISK")
do
temp01=$(/usr/syno/sbin/snmpwalk -OQne -t 10 -v 3 -l authNoPriv -u "$SNMPUSERNAME" -a MD5 -A "$SNMPPASSWORD" "$HOSTNAME" "$OID_diskStatus.$(($i-1))" 2>/dev/null)
temp02=$(/usr/syno/sbin/snmpwalk -OQne -t 10 -v 3 -l authNoPriv -u "$SNMPUSERNAME" -a MD5 -A "$SNMPPASSWORD" "$HOSTNAME" "$OID_diskModel.$(($i-1))" 2>/dev/null)
temp03=$(/usr/syno/sbin/snmpwalk -OQne -t 10 -v 3 -l authNoPriv -u "$SNMPUSERNAME" -a MD5 -A "$SNMPPASSWORD" "$HOSTNAME" "$OID_diskID.$(($i-1))" 2>/dev/null)
temp04=$(/usr/syno/sbin/snmpwalk -OQne -t 10 -v 3 -l authNoPriv -u "$SNMPUSERNAME" -a MD5 -A "$SNMPPASSWORD" "$HOSTNAME" "$OID_diskTemp.$(($i-1))" 2>/dev/null)
status=$(echo "$temp01" | grep "$OID_disk" | cut -d " " -f3)
diskmodel=$(echo "$temp02" | grep "$OID_disk" | cut -d "\"" -f2 | sed 's/\s//g')
ID=$(echo "$temp03" | grep "$OID_disk" | cut -d "\"" -f2)
temp=$(echo "$temp04" | grep "$OID_disk" | cut -d " " -f3)
#echo "Le disque $ID modele $diskmodel a le statut $status et sa température est de $temp°C"
#disques="$(echo "The Hard "$ID" model "$diskmodel" has his status code : "$status" and his temperature is "$temp"°C")"\\n"$disques"
if [ "$status" -eq "5" ]; then
disques="$(echo "The Hard "$ID" model "$diskmodel" is damaged")\\n"$disques""
RETURN="$CRITICAL"
elif [ "$status" -eq "4" ]; then
disques="$(echo "The Hard "$ID" model "$diskmodel" has partitions damaged")\\n"$disques""
RETURN="$CRITICAL"
elif [ "$status" -eq "3" ]; then
disques="$(echo "The Hard "$ID" model "$diskmodel" is not partitioned")\\n"$disques""
RETURN="$WARNING"
elif [ "$status" -eq "2" ]; then
disques="$(echo "The Hard "$ID" model "$diskmodel" has system partitions but no data")\\n"$disques""
RETURN="$WARNING"
elif [ "$status" -eq "1" ]; then
disques="$(echo "The Hard "$ID" model "$diskmodel" is functioning normally")\\n"$disques""
#RETURN=$(echo "$OK")
else
disques="$(echo "The Hard "$ID" model "$diskmodel" is in an unknown state")\\n"$disques""
RETURN="$WARNING"
fi
done
#Etat RAID
for i in $(seq 1 "$nbRAID")
do
temp01=$(/usr/syno/sbin/snmpwalk -OQne -t 10 -v 3 -l authNoPriv -u "$SNMPUSERNAME" -a MD5 -A "$SNMPPASSWORD" "$HOSTNAME" "$OID_RAIDName.$(($i-1))" 2>/dev/null)
temp02=$(/usr/syno/sbin/snmpwalk -OQne -t 10 -v 3 -l authNoPriv -u "$SNMPUSERNAME" -a MD5 -A "$SNMPPASSWORD" "$HOSTNAME" "$OID_RAIDStatus.$(($i-1))" 2>/dev/null)
Volume=$(echo "$temp01" | grep "$OID_disk" | cut -d "\"" -f2)
Statut=$(echo "$temp02" | grep "$OID_disk" | cut -d " " -f3)
#echo "Name : "$Volume" Status : "$Statut""
if [ "$Statut" -eq "11" ]; then
raids="$(echo "The RAID "$Volume" is degraded") "$raids""
RETURN="$CRITICAL"
elif [ "$Statut" -eq "12" ]; then
raids="$(echo "The RAID "$Volume" has crashed") "$raids""
RETURN="$CRITICAL"
elif [ "$Statut" -eq "1" ]; then
raids="$(echo "The RAID "$Volume" is fine") "$raids""
#RETURN=$(echo "$OK")
else
raids="$(echo "The RAID "$Volume" is in an unknown state") "$raids""
RETURN="$WARNING"
fi
done
# Retour vers Nagios
if [ "$RETURN" -eq "2" ] || [ "$systemFanStatus" -eq "2" ] || [ "$CPUFanStatus" -eq "2" ] || [ "$powerStatus" -eq "2" ] || [ "$systemStatus" -eq "2" ]; then
echo -e "CRITICAL - The NAS "$model" - SN : "$serialNumber" - DSM : "$DSMVersion" has a problem"
echo -e "NAS temperature is "$TEMP"°C - Fan Status : "$systemFanStatus" - CPU Fan Status : "$CPUFanStatus" - Power Status : "$powerStatus" - System Status : "$systemStatus" " | sed 's/ 1 / OK
for i in "$disques"; do
echo -e "$i" | sed '/^$/d'
done
for i in "$raids"; do
echo -e "$i" | sed '/^$/d'
done
FunctionDiskSpace Output
exit "$CRITICAL"
fi
if [ "$RETURN" -eq "1" ]; then
echo -e "WARNING - The NAS "$model" - SN : "$serialNumber" - DSM : "$DSMVersion" is in Warning state"
echo -e "NAS temperature is "$TEMP"°C - Fan Status : "$systemFanStatus" - CPU Fan Status : "$CPUFanStatus" - Power Status : "$powerStatus" - System Status : "$systemStatus" " | sed 's/ 1 / OK
for i in "$disques"; do
echo -e "$i" | sed '/^$/d'
done
for i in "$raids"; do
echo -e "$i" | sed '/^$/d'
done
FunctionDiskSpace Output
exit "$WARNING"
fi
if [ "$RETURN" -eq "0" ]; then
echo -e "OK - The NAS "$model" - SN : "$serialNumber" - DSM : "$DSMVersion" is fine"
echo -e "NAS temperature is "$TEMP"°C - Fan Status : "$systemFanStatus" - CPU Fan Status : "$CPUFanStatus" - Power Status : "$powerStatus" - System Status : "$systemStatus" " | sed 's/ 1 / OK
for i in "$disques"; do
echo -e "$i" | sed '/^$/d'
done
for i in "$raids"; do
echo -e "$i" | sed '/^$/d'
done
FunctionDiskSpace Output
exit "$OK"
fi
echo -e "CRITICAL - The NAS "$model" - SN : "$serialNumber" - DSM : "$DSMVersion" is in an indeterminate State"
exit "$CRITICAL"
fi
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