Solaris

check_zpools.sh

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Description:

Monitoring plugin to monitor status and usage of zfs pools. Runs on multiple OS (tested on Solaris, FreeBSD, Linux, smartOS).

Current Version

20230215

Last Release Date

2023-02-15

Compatible With

  • Nagios 1.x
  • Nagios 2.x
  • Nagios 3.x
  • Nagios 4.x

Owner

Claudio Kuenzler

Website

https://www.claudiokuenzler.com/monitoring-plugins/check_zpools.php

Download URL

https://www.claudiokuenzler.com/monitoring-plugins/check_zpools.sh

License

GPL

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Project Notes
***Description*** Up to date description and full documentation: https://www.claudiokuenzler.com/monitoring-plugins/check_zpools.php This plugin is a fork of previously existing plugins from Aldo Fabi and Vitaliy Gladkevitch. Based on a comparison of existing Nagios plugins to check zfs pools (see http://www.claudiokuenzler.com/blog/345/monitor-zfs-disk-pools-nagios-plugin-comparison), the original plugin was completely rewritten for the purpose on using it independantly of the OS -> tested on Solaris, SmartOS and FreeBSD. It also offers performance data for graphing the usage. The plugin supports a warning and a critical threshold for the usage (like disk usage) on the ZFS Pool. If one of the disks in the ZFS Pool is set to DEGRADED, the plugin will return a CRITICAL status. Performance data are integrated for usage. ***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 # 2016-10-12 Fixed incorrect shell quoting and typos # 2022-03-01 Merge PR #10, manually solve conflicts # 2022-05-24 Removed need for 'awk', using bash-functions instead # 2023-02-15 Bugfix in single pool CRITICAL output (issue #13) ***Tested on OS...*** - Solaris 10/11 - OpenSolaris - SmartOS - FreeBSD - Linux ***Usage*** ./check_zpools.sh -p (poolname|ALL) [-w warnpercent] [-c critpercent] ***Example Output*** ./check_zpools.sh -p ALL -w 80 -c 90 ALL ZFS POOLS OK (datapool logpool rpool)|datapool=47% logpool=38% rpool=78%
Reviews (2) Add a Review
Free space monitoring could be wrong
by vorbster, April 30, 2016
Good script, it's just I believe that free space should be monitored using something like "zfs list" because "zpool list" always shows more that actually available.
Right now zpool list says following on my system:
NAME SIZE ALLOC FREE
pool0 5.33T 4.27T 1.06T
But "zfs list" shows less:
NAME USED AVAIL
pool0 4.76T 494G
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did some changes
by xrated, January 31, 2014
The script itself works, there was only an exception on FreeBSD where no which cmd is available in bash. I completely rewrote the script to add warning/critical with free space in G. Nagios Exit Parameters were not defined, added also some additional checks for arguments. When warn/crit was not specified it will just look if the pool is ONLINE.

http://pastebin.com/j6AvtKPk
Owner's Reply:

Hello, the "which" command does exist in FreeBSD, too. However you're right about the fixed thresholds, I should remove them.

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