Most of this blog entry material is taken from “Checking /proc/mounts on remote server” from Nagioswiki . The Nagios version is 3.x and the OS Platform CentOS 5.x
We will basically require 2 Nagios Plugins “check_disk” and “check_nrpe” plugins to use this excellent nrpe plugins
On the Remote Server, install the
# yum install nagios-nrpe nagios-plugins-disk
On the Remote Server, go to nagios configuration file and the command inside nrpe.cfg
# vim /etc/nagios/nrpe.cfg
command[check_disks_proc_mounts]=/usr/lib/nagios/plugins/check_disk -w 15% -c 10% $(for x in $(cat /proc/mounts |awk '{print $2}')\; do echo -n " -p $x "\; done)
On the Nagios Server,
Ensure you have the check_nrpe plugins inside. and test the plugins
# yum install nagios-nrpe # cd /usr/lib64/nagios/plugins # ./check_nrpe -H monitored-server -c check_disks_proc_mounts DISK OK - free space: / 28106 MB (53% inode=98%); /boot 81 MB (86% inode=99%); /dev/shm 1887 MB (100% inode=99%);| /=24543MB;47188;49964;0;55516 /boot=12MB;83;88;0;98 /dev/shm=0MB;1603;1698;0;1887
Add the following definition in your commands.cfg file
define command {
command_name check_nrpe_disk_procs
command_line $USER1$/check_nrpe -H $HOSTNAME$ -c check_disks_proc_mounts -t 20
}
Add the following sort of host check (assuming, of course, that your host is already in your config)
define service{
use local-service
host_name monitored_server
service_description check_disk on proc mounts
check_command check_nrpe_disk_procs
}
Horray it is done.
