check_paging_file

This plugin is designed to be run by NSClient++ on the host you want to check. It is not designed to allow you to check a remote host, this is why there is no option to specify the host name. Paging File Size: In relation to Virtual Machines and 64bit Operating Systems there is no need to have paging files that are 1.5 x VM Memory. This leads to wasted disk space, remember that paging to disk is bad, fix the problem by adding more memory to the VM. The purpose of checking the paging file size is to ensure that standards are being applied across your environment. You have two choices here, check to make sure the paging file is EXACTLY x size OR check to make sure the paging file does NOT EXCEED x size. All values are in MEGABYTES. You also MUST to define if you want the service state to be returned as CRITICAL or WARNING. Personally I use warning as I am using this size check for auditing purposes. Examples: Check Paging File EXACT Size of 3434 MB with a warning state: cscript /nologo check_paging_file.vbs -check_size_exact 3434 -check_size_return_state warn Check Paging File Size does NOT EXCEED 2456 MB with a critical state: cscript /nologo check_paging_file.vbs -check_size_dont_exceed 2456 -check_size_return_state crit Check Paging File Size does NOT EXCEED 1886 MB with a warning state: cscript /nologo check_paging_file.vbs -check_size_dont_exceed 1886 -check_size_return_state warn Paging File Usage: Paging to disk affects performance. To page to disk means that extra CPU cycles and read/write operations need to occur. A simple fix is to add more memory to the computer to resolve the problem but how much memory do you need to add? Simply take the paging file usage that is occuring and add this amount of extra memory to the computer. There is always a small amount of paging that occurs on a computer, this check can alert you once warning AND/OR critical thresholds have been exceeded. This check will tell you the amount of paging that is occurring in MEGABYTES. Examples: Check Paging File Usage, warning at 512 MB and critical at 1024 MB: cscript /nologo check_paging_file.vbs -warn_usage 512 -crit_usage 1024 Check Paging File Usage, warning at 512 MB cscript /nologo check_paging_file.vbs -warn_usage 512 Check Paging File Usage, critical at 1024 MB cscript /nologo check_paging_file.vbs -crit_usage 1024 Performing both Paging File Size and Usage checks: Check Paging File Size does NOT EXCEED 1886 MB with a warning state AND Check Paging File Usage, warning at 512 MB and critical at 1024 MB: cscript /nologo check_paging_file.vbs -check_size_dont_exceed 1886 -check_size_return_state warn -warn_usage 512 -crit_usage 1024 Check Paging File EXACT Size of 3434 MB with a critical state AND Check Paging File Usage, warning at 512 MB: cscript /nologo check_paging_file.vbs -check_size_exact 3434 -check_size_return_state crit -warn_usage 512 Configuring Nagios and NSClient++ Nagios: The following shows you how to configure your Command AND Service definitions. Command Definition: define command { command_name check_paging_file command_line $USER1$/check_nrpe -H $HOSTADDRESS$ -t 30 -c check_paging_file -a '$ARG1$ $ARG2$ $ARG3$ $ARG4$ $ARG5$ $ARG6$ $ARG7$ $ARG8$' } NOTE: In the above command_line there are single quotes that start at $ARG1$ and end at $ARG8$. Service Definition: Check Paging File EXACT Size of 3434 MB with a critical state AND Check Paging File Usage, warning at 512 MB and critical at 1024 MB define service { host_name your_host service_description Paging File Size and Usage check_command check_paging_file!check_size_exact!3434!-check_size_return_state!crit!-warn_usage!512!-crit_usage!1024 max_check_attempts 3 check_interval 3 retry_interval 3 register 1 } NSClient++ Version 0.3.x Copy the plugin to the scripts directory. Add the following to the [NRPE Handlers] section in NSC.ini: check_paging_file=cscript.exe //T:30 //NoLogo scriptscheck_paging_file.vbs $ARG1$ $ARG2$ $ARG3$ $ARG4$ $ARG5$ $ARG6$ $ARG7$ $ARG8$ Nagios PNP Performance Graph Template A custom pnp performance graph template has been provided, this generates two seperate performance graphs. The file must be placed into the pnp/templates directory on your Nagios host. I have only tested this on Nagios XI and the default location on a Nagios XI host is /usr/local/nagios/share/pnp/templates. NOTE: The name of the file MUST match the name of the Command Definition command_name. In the example above it is called check_paging_file and hence this is why the template is called check_paging_file.php. License: This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/. To see the license type: cscript /nologo check_paging_file.vbs -license | more Help: To see the help type: cscript /nologo check_paging_file.vbs -help | more Version Notes: 2012-10-05 Initial release. 2012-10-10 Updated plugin performance data to include the name of the plugin as the ending string, pnp will see this and use the custom pnp template. This works if you are using this plugin as a passive check. 2013-12-10 Fixed bug when using both warn_usage and crit_usage at the same time, reported by Marcel Kalinna.

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