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An op5 Monitor/Naemon plugin to monitor VMware virtualization environment


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This plugin is "Deprecated"

This plugin is deprecated and is unlikely to see any further development. The following fork might be of interest:

Welcome to check VMware API

Check VMware API is a plugin developed by op5 to primarily be used with op5 Monitor, but can also be used in Naemon or Nagios installations, to monitor VMware ESX and vSphere servers. You can monitor either a single ESX(i)/vSphere server or a VMware VirtualCenter/vCenter Server and individual virtual machines. If you have a VMware cluster you should monitor the data center (VMware VirtualCenter/vCenter Server) and not the individual ESX/vSphere servers.

Supports check status of ESX(i) server, vSphere 5.1 up to vSphere 6.5.

Supported features

The supported feature set will differ a bit between vSphere 5 and vSphere 6; please refer to the tables below for reference:

Checks supported for Hosts

Check vSphere 5 vSphere 6
CPU Yes Yes
IO Yes Yes
Memory Yes Yes
Network Yes Yes
Runtime Yes Partially: Overview*, Connection state, Health, Maintenance, Status, Storage Health
Service Yes Yes
Uptime No Yes
Storage Yes No
  • Specified in the plugin help text as "^all", meaning that the sub command are omitted

Checks supported for Data centers

Check vSphere 5 vSphere 6
CPU Yes Yes
IO Yes Yes
Memory Yes Yes
Network Partially: Overview*, Receive, Send, Usage Partially: Receive, Send, Usage, Overview*
Runtime Partially: Overview*, Issues, List, Listcluster, Listhost, Status, Tools Partially: Overview*, List, Listcluster, Tools
VMFS Partially: Overview* Partially: Free space, Used space
  • Specified in the plugin help text as "^all", meaning that the sub command are omitted


'VMware vSphere SDK for Perl', available at (requires a free account that you sign up for at the same page)


This is how to install the plugin on CentOS with VMware vSphere SDK for Perl 5.1.

  • Download the latest version of the vSphere SDK for Perl package from VMware support page.
  • In this example we use VMware-vSphere-Perl-SDK-5.1.0-780721.x86_64.tar.gz.
  • Make sure the following packages are installed.
$ sudo yum install openssl-devel perl-Archive-Zip perl-Class-MethodMaker uuid-perl perl-SOAP-Lite perl-XML-SAX perl-XML-NamespaceSupport perl-XML-LibXML perl-MIME-Lite perl-MIME-Types perl-MailTools perl-TimeDate uuid libuuid perl-Data-Dump perl-UUID cpan libxml2-devel perl-libwww-perl perl-Test-MockObject perl-Test-Simple perl-Monitoring-Plugin perl-Class-Accessor perl-Config-Tiny
  • Upload the file "VMware-vSphere-Perl-SDK*.tar.gz" to your op5 Monitor server’s /root directory.
$ cd /root/
$ tar xvzf VMware-vSphere-Perl-SDK-5.1.0-780721.x86_64.tar.gz
$ cd vmware-vsphere-cli-distrib
$ export ftp_proxy=
$ export http_proxy=
$ ./

 "Creating a new vSphere CLI installer database using the tar4 format.

  Installing vSphere CLI 5.1.0 build-780721 for Linux.

   You must read and accept the vSphere CLI End User License Agreement to
   Press enter to display it."
   "Do you accept? (yes/no)
  • Type “yes” and press "enter".
  • In which directory do you want to install the executable files?
  • Press Enter
Please wait while copying vSphere CLI files...

The installation of vSphere CLI 5.1.0 build-780721 for Linux completed
successfully. You can decide to remove this software from your system at any
time by invoking the following command:

This installer has successfully installed both vSphere CLI and the vSphere SDK
for Perl.  The following Perl modules were found on the system but may be too
old to work with vSphere CLI:
Compress::Zlib 2.037 or newer
Compress::Raw::Zlib 2.037 or newer
version 0.78 or newer
IO::Compress::Base 2.037 or newer
IO::Compress::Zlib::Constants 2.037 or newer
LWP::Protocol::https 5.805 or newer
--the VMware team
  • Note that the the issues with old Perl modules DOES NOT need to be resolved. This does not impact the plugins functionality.
  • Now, clone or download this repository.
  • Within the check_vmware_api repository, type make to run the test suit.
  • Copy the to a suitable location and make sure it is exicutable. Will vary between installations.
$ cp /opt/plugins/check_vmware_api
$ cd /opt/plugins/
$ chmod 755 check_vmware_api


Simply run the plugin with:

$ /opt/plugins/check_vmware_api --help


Get involved - Contribute to the Check VMware API project

It is easy to get involved in the project and to contribute!

  • Start using the plugin and if you like what you see, help by spreading the word on blogs and forums.
  • If you find a bug you can create a bug report in the issue tracker here on GitHub.


  • Unit tests: This plugin is huge and hard to unit test but if pull requests with unit tests are greatly appreciated.
  • Integration tests: This plugin is equipped with an option of generating tests (--generate_test). Simply run the plugin with this flag appended at the end of your command followed by a filename with the following format:

_.dat For example: host_runtime_maintenance_maintwarn.dat So running the plugin from command line with the following will generate the integration test: $ ./check_vmware_api -u -p -H <host_name> -l runtime -s maintenance -o maintwarn --generate_test host_runtime_maintenance_maintwarn.dat You can omit subcommand and/or option from the command and reflect that in the file name. To run all the tests simply run 'make'.




An op5 Monitor/Naemon plugin to monitor VMware virtualization environment