Add Windows Disk Usage Checks In Nagios

Adding an additional Windows Disk Usage check in XI is an important task a Nagios Administrator perform to optimizethe performance of the Server.

Here at Ibmi Media, as part of our Server Management Services, we regularly help our Customers to perform related Nagios queries.

In this context, we shall look into how to add Windows Disk Usage Checks In Nagios.

How to Add Windows Disk Usage Checks In Nagios?

Here, we can see how to make quick changes without needing to re-run the Windows Server/Desktop wizard using CCM.

Make sure to install NSClient++ before proceeding.

To install NSClient++ Agent:

  • Firstly, log on to the Windows machine we wish to install the NSClient++ agent on.
  • Then, run the NSClient++ installer package to start the installation.
  • The welcome screen will appear. Click Next to continue to the next step.
  • Then, select Generic and click Next to continue. Click the Typical button.
  • Next, we will need to configure the NSClient++ agent. Enter the IP address(s) of the Nagios XI server(s) in the Allowed hosts box.

For example, two addresses have been added ( and separated by a comma). Enter a password in the Password box that is required for communication between the Nagios server and the Windows machine (used by check_nt plugin):

Enable common check plugins = Checked
Enable nsclient server (check_nt) = Checked

  • Do not select NRPE as it is not necessary by using the Windows Server configuration wizard.
  • NRPE does offer advanced monitoring capabilities. Click Next to continue.
  • Then, click the Install button on the next screen to begin the installation.
  • We will prompted to grant permission to the installer to make changes to the computer, click Yes to continue.
  • Wait while NSClient++ is install and click Finish to complete the setup.

How to navigate to the Core Config Manager (CCM) ?

There are multiple ways to access CCM:

  • When hovering the Configure button in the top menu bar, we can select Core Config Manager.
  • On the Configure tab, we can select Core Config Manager from the left pane or from the main screen.

How to Utilize the Core Config Manager ?

  • In the left pane under Monitoring, click on Services.
  • This will bring us to Service Management view.
  • Let us see how to duplicate an existing service and modify the duplicate service to a new disk usage check.
  • In this example, our config name is we could use the search functionality or use the Config Name drop down list.
  • Duplicating a service is as easy as clicking the Copy iconfor that service.
  • In this example, we will copy the Drive C: Disk Usage service. After pressing the copy icon, a new service will appear.
  • Next, edit the service.
  • To do that, click the Service Name or we can click the Screwdriver/Wrench icon in the Actions column.
  • This brings us to the editor screen for the service.
  • Firstly, we must do is rename the Config Name field. In this case, it is all the services for the host Since this will be another service for, we will simply remove the _copy_1 from the config name.
  • Then, we must change the Service Description field. Since we are adding a service to monitor D drive, we will change the letter C to a D.
  • Next, we have to actually change what the service does. We change that by changing the letter after the -l flag in the $ARG3$ field. Change the C to which drive letter we wish to monitor, in our case, a D.
  • Then, click the Active check to enable this service. Click the Save button when finished.
  • Once we click Save, we will be returned to the services lists.
  • We can now see the new Drive D: Disk Usage service in the list.
  • We must click the Apply Configuration button at the bottom of the screen, this saves our new config and restarts Nagios.

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This article covers how to monitor additional drives on a Windows client. To install Nagios monitoring agent, NSClient++, on a target Microsoft Windows desktop or server for the purposes of monitoring that machine with Nagios XI. This allows organizations to monitor vital metrics and ensure that a specific Windows desktop machine or server is functioning properly.

To access CCM:

  • When hovering the Configure button in the top menu bar you can select Core Config Manager.
  • On the Configure tab you can select Core Config Manager from the left pane or from the main screen.