Search Exchange

Search All Sites

Nagios Live Webinars

Let our experts show you how Nagios can help your organization.

Contact Us

Phone: 1-888-NAGIOS-1


Remember Me

Directory Tree

Current Version
Last Release Date
Compatible With
  • Nagios 3.x
  • Nagios 4.x
  • Nagios XI
Network Monitoring Software - Download Nagios XI
Log Management Software - Nagios Log Server - Download
Netflow Analysis Software - Nagios Network Analyzer - Download
Nagios Check for NAS QNAP via SNMP and bash script. based on check_qnap and check_qnap2
Check for NAS QNAP using SNMP and bash script.

Based on two different version of check_qnap:
- version 1.03 from:
- last version from:

Fixed minor errors, introduced more check and did some cleanup of the status information and performance info.

Monitoring of:
- System Information
- HD Status (for all disk into NAS)
- Temperature system
- Temperature disks
- Status RAID volume
- CPU usage
- Memory usage
- Diskspace usage
- Uptime (System and Network)
- Fans (for all fan)

Tested on a Qnap TS-853U-RP

Add to Nagios commands.cfg:

define command{
command_name check_qnap
command_line $USER1$/ $ARG1$ $ARG2$ $ARG3$ $ARG4$ $ARG5$

Use for example this check_command into service definition:
check_command check_qnap!$HOSTADDRESS!public!diskused!80!90
Reviews (4)
byfoster, June 23, 2019
The plugin work well. But when my NAS is off, all the services have the status "ok", however, the results are empty. Is it normal?
(I am a beginner on Nagios)
It mostly works, and does what we need.
However, I fixed a few things to make it work better.
- The volstatus check, I change -le (less-equal) to -ge (greater-equal)
if [ "$VOLPCT" -ge "$strCritical" ]; then
.. Otherwise, it would report as 'critical', that you haven't flooded the drive..

- also in volstat, I change the awk part to this:
awk -F: '{print substr($2,2)}'

otherwise it can't handle spaces in the status text,
which in our case meant it wouldnt show the relevant error text.

but otherwise, a great plugin that is easy to adjust.
bychameo, March 3, 2017
Works perfect with our TS-253A, TS-269Pro and TS-EC880U.

The only problem was the volstatus, it take some time to figure out that the values are for the free disk space and not the used disk space
bydamned, November 27, 2016
1 of 1 people found this review helpful
A very complete plugin but with some problems with big disks..

Volume #1: CRITICAL: Unknown, Total Size (bytes): 3.5, Free: 732.6 (20931%)|FreeSize_Volume-1=20931%;1;2;0;100

CRITICAL: Total:3TB - Used:2TB - Free:0GB = 79%|Used=2857.36;35;71;0;3590.00
Owner's reply

Thanks for your feedback I check this part of code it's a possible bug.