Check geom - NRPE gmirror and friends check: Difference between revisions

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{{DISPLAYTITLE:check_geom - NRPE gmirror and friends check}}
[[category:nagios]]
[[category:nagios]]
[[category:GEOM_Related]]
[[category:GEOM_Related]]
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WWW: http://www.geocities.com/ntb4real/proj/geom.htm
WWW: http://www.geocities.com/ntb4real/proj/geom.htm
</pre>
</pre>
 
== Configuring Nagios ==
Install the port:
First I define a new service on the Nagios server, in <code>/usr/local/etc/nagios/objects/services.cfg</code>:
<pre>
sudo portmaster /usr/ports/net-mgmt/nagios-geom/
</pre>
 
Add the following line to ''/usr/local/etc/nrpe.cfg'':
<pre>
command[check_geom]=/usr/local/libexec/nagios/check_geom mirror gm0
</pre>
 
Of course, if the gmirror is called something else, change the line accordingly.
 
Remember to restart NRPE after changing the config:
<pre>
sudo /usr/local/etc/rc.d/nrpe2 restart
</pre>
 
Define a service on the Nagios server, in ''/usr/local/etc/nagios/objects/services.cfg'':
<pre>
<pre>
define service{
define service{
Line 38: Line 22:
</pre>
</pre>


I then add the host to the group geom-servers on the nagios server, which just tells it to run the check check_nrpe2!check_geom on all members of the group.
I then add the hosts that I want to run this check on to the group geom-servers on the nagios server, which makes Nagios run the check <code>check_nrpe2!check_geom</code> on all members of the group.


== Install the plugin ==
Just install the port:
<pre>
sudo portmaster /usr/ports/net-mgmt/nagios-geom/
</pre>


'''Read on for a way to do this without the port, should you want to (old information below here, use the port if possible):'''
== Configuring NRPE ==
Add the following line to <code>/usr/local/etc/nrpe.cfg</code>:
<pre>
command[check_geom]=/usr/local/libexec/nagios/check_geom mirror gm0
</pre>


I found a simple script to monitor the status of gmirror on a server in nagios. I found it on [http://www.klintrup.dk/soren/ this page], the usual thanks to Søren Klintrup for making it available to the public. I do the following to make it work on an existing NRPE installation:
Of course, if the gmirror is called something else, change the line accordingly.  


Remember to restart NRPE after changing the config:
<pre>
<pre>
sudo fetch -o /usr/local/libexec/nagios/check_gmirror http://www.klintrup.dk/soren/gmirror/check_gmirror.sh
sudo chmod +x /usr/local/libexec/nagios/check_gmirror
sudo ee /usr/local/etc/nrpe.cfg
...and add "command[check_gmirror]=/usr/local/libexec/nagios/check_gmirror" in the command section near the bottom...
sudo /usr/local/etc/rc.d/nrpe2 restart
sudo /usr/local/etc/rc.d/nrpe2 restart
</pre>
</pre>
Define a service on the Nagios server, in ''/usr/local/etc/nagios/objects/services.cfg'':
<pre>
define service{
        use                            generic-service
        hostgroup_name                  gmirror-servers
        service_description            nrpe_check_gmirror
        check_command                  check_nrpe2!check_gmirror
}
</pre>
I then add the host to the hostgroup gmirror-servers on the nagios server.

Latest revision as of 22:25, 17 January 2010

It is possible to check the status of gmirror with Nagios and NRPE using the following port: 

$ cat /usr/ports/net-mgmt/nagios-geom/pkg-descr
This is a small Nagios plugin written in PERL and designed to monitor
the state of FreeBSD GEOM devices (specifically mirrors and striped
volumes) from Nagios.

WWW: http://www.geocities.com/ntb4real/proj/geom.htm

Configuring Nagios

First I define a new service on the Nagios server, in /usr/local/etc/nagios/objects/services.cfg: 

define service{
        use                             generic-service
        hostgroup_name                  geom-servers
        service_description             nrpe_check_geom
        check_command                   check_nrpe2!check_geom
}

I then add the hosts that I want to run this check on to the group geom-servers on the nagios server, which makes Nagios run the check check_nrpe2!check_geom on all members of the group.

Install the plugin

Just install the port: 

sudo portmaster /usr/ports/net-mgmt/nagios-geom/

Configuring NRPE

Add the following line to /usr/local/etc/nrpe.cfg: 

command[check_geom]=/usr/local/libexec/nagios/check_geom mirror gm0

Of course, if the gmirror is called something else, change the line accordingly.

Remember to restart NRPE after changing the config: 

sudo /usr/local/etc/rc.d/nrpe2 restart
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