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- System status (Power, Fans)
- Disks status
- RAID (Volume) status
- DSM update status
- Storage percentage of use
- UPS informations
This script check:
- System status (Power and Fans)
- Disks status
- RAID status
and now also:
- Use SNMPv2 or SNMPv3
- Check for DSM update
- Check a NAS with 52 disks max
- Check temperature
- Check percentage of use of your storages
- Display UPS information
usage: ./check_snmp_synology [OPTION] -u [user] -p [pass] -h [hostname]
-u [snmp username] Username for SNMPv3
-p [snmp password] Password for SNMPv3
-2 [community name] Use SNMPv2 (no need user/password) & define community name (ex: public)
-h [hostname or IP](:port) Hostname or IP. You can also define a different port
-W [warning temp] Warning temperature (for disks & synology) (default 50)
-C [critical temp] Critical temperature (for disks & synology) (default 60)
-w [warning %] Warning storage usage percentage (default 80)
-c [critical %] Critical storage usage percentage (default 95)
-i Ignore DSM updates
-U Show informations about the connected UPS (only information, no control)
-v Verbose - print all informations about your Synology
./check_snmp_synology -u admin -p 1234 -h nas.intranet
./check_snmp_synology -u admin -p 1234 -h nas.intranet -v
./check_snmp_synology -2 public -h nas.intranet
./check_snmp_synology -2 public -h nas.intranet:10161
I have some problems with this script, it seems something it's wrong, shows me the advise: "(No output on stdout) stderr: /usr/local/nagios/libexec/check_snmp_synology: line 323: 53"
It's probably cause by the Docker plugin. Can you try to uninstalled it ?
"CRITICAL - Problem with SNMP request"
try many things, but i think its a bug in your check_snmp_synology.
And yes, i use your newest version.
Can you contact me by mail please.
We will find a solution ;)
is there any way to change the Port from 161 to another one?
Yes , you can specify the port like that:
./check_snmp_synology -2 public -h 192.168.100.12:10161
I added a comment in the help
I had some requirements which the plugin didn't meet. Therefore, I have added some minor improvements such as separated command line options for DSM Update and enable performance data, etc.
The author didn't respond to my mail. Therefore, I have published my version on GitHub, see: https://github.com/exensio/synology-nagios-plugin
I modify it in order to ignore DSM updates. It works perfectly.
These are the lines for add option -I to ignore DSM updates :
case $DSMUpgradeAvailable in
"1") DSMUpgradeAvailable="Available"; healthWarningStatus=1; updateMessage="DSM update available";;
"2") DSMUpgradeAvailable="Unavailable"; healthWarningStatus=0; updateMessage="Update unavailable";;
"3") DSMUpgradeAvailable="Connecting"; healthWarningStatus=0; updateMessage="Update in progress";;
"4") DSMUpgradeAvailable="Disconnected"; healthWarningStatus=1; updateMessage="DSM Update Disconnected";;
"5") DSMUpgradeAvailable="Others"; healthWarningStatus=1; updateMessage="Check DSM Update";;
if [ "$ignoreUpdate" = "yes" ] ; then
healthString="$healthString, Info : $updateMessage";
and on the last lines, I modify the output for Ok status :
if [ "$healthCriticalStatus" = "0" ] && [ "$healthWarningStatus" = "0" ] ; then
echo "OK - $healthString Appliance is in good health"
I added directy on the script! Thanks
Your plugin works rather fine but I have a problem: when I mount an USB drive. The USB drive is mounted in the /volume1/usbdrive and the script fails.
We have a recurring warning from your plugin saying that DSM update is disconnected. I think that's because Synology has its servers down. People can have the Syno out of network so I think it will be nice to be able to disable this warning.
Another request: will it be possible to only select some tests? For example I will be interested in no dsm update tests or different volumes warning/critical levels...
Thank you for the plugin
./check_snmp_synology: line 307: 49
3576310 * 100 / 49
3576310: syntax error: invalid arithmetic operator (error token is ".22.214.171.124.126.96.36.199.1.4
3576310 * 100 / 49
tried to find on myself, but as not a programer, no chance.. :) any help very appreciated,
Synology model: "RS814"
Synology s/n: "14A0LZN498800"
DSM Version: "DSM 5.1-5022"
DSM update: Unavailable
System Status: Normal
Temperature: 72 (CRITICAL)
Power Status: Normal
System Fan Status: Normal
CPU Fan Status: Normal
Number of disks: 4
"Disk 1" (model: "WD40EFRX-68WT0N0 ") status:Normal temperature:39
"Disk 2" (model: "WD40EFRX-68WT0N0 ") status:Normal temperature:40
"Disk 3" (model: "WD40EFRX-68WT0N0 ") status:Normal temperature:40
"Disk 4" (model: "WD40EFRX-68WT0N0 ") status:Normal temperature:38
Number of RAID volume: 1
"Volume 1" status:Normal 40% used
What is the difference with disk values?
This is the value return by your Synology, there is always a difference between disks (1 or 2 degrees)
For the temperature of your Synology, it's very high. You can try to run:
snmpget -OQne -v 2c -c public SYNOLOGY_IP 188.8.131.52.4.1.65184.108.40.206
220.127.116.11.4.1.6518.104.22.168 ? this is the OID for Synology temperature
And check on web interface the value.
Please review your note...
CRITICAL - Problem with SNMP request
I already tried with different Synology's.
Can you try with my new version of the script, please
Im sorry I am a very beginner in nagios.
I paste your script into /usr/local/nagios/libexec but when I execute ./check_snmp_synology -h myip I got
-bash: ./check_snmp_synology: No files or folders of this type
Could you please help me ?
I have the same problem. My Synology displays: WARNING - Synology "RS2414rp+" (s/n: "XXXXXXXXXX", "DSM 5.1-5022") needs to be updated.
Could you please explain to me, how do you have solved the problem ?
What do you have change between line 119 to 123 ?
Thanks for your answer.
Can you try with my new version of the script ? there is many bug correction and new features
there is perhabs a bug.
for the parameter OID_upgradeAvailable set you between line 119 to 123 all status of the parameter healthStatus on 3. This give all time a warning to do updates.
I changed in a other version for me that only by the status updates available the warning comes to do the updates.
I added a few things to the plugin:
- Read DSM update status, flags a warning when DSM is out of date
- Connects via SNMP v3 (more secure)
- When using verbose mode the plugin will now first output the device status. This give you a better oversight in the WebUI.
Script can be find here: http://pastebin.com/THUfEuNy
Have fun :)
Still new to this and would really like to monitor the DiskStation in our office.
Any advice on making the complete verbose output display in Nagios?
Thank you for any hint!
I have 1 disk marked as hot spare, which has status Initialized, which is fine. The script reported this as Critical in Nagios so I modified it not to do that.
Thanks for the script!
And just to be fair with all respect to the Nagios Plugin Developing Guideline: this check totally lacks a critical and a warning switch which would really make sense when monitoring temperatures.
So I really cannot consider this as a "good" nagios plugin, only average, because I cannnot define any limits. But it is still a good starting point for people who do not fear bash scripts.
Sadly, the author does not seem to be very active so be prepared to make your own changes to the script.
Successfully tested and used on Ubuntu 10.04.4 TLS with Nagios Core 3.2 and a Synology RS3412RPxs in Cluster-Mode.