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Home > Success Center > Network Performance Monitor (NPM) > Using WBEMTest to verify volume size and free space

Using WBEMTest to verify volume size and free space

Updated September 13, 2017


You can use WBEMTest to verify the volume size and the amount of free disk space. You can use WBEMTest to explore your environment, or to confirm the information that you are receiving from Windows Management Instrumentation (WMI). 


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  1. Choose Start -> Run -> WBEMTest.
  2. Click Connect.
  3. In the Namespace, enter \\<IP of DC>\root\cimv2
  4. Enter the username and password you are using in NPM to poll.
  5. Click Connect.
  6. Click on Query.
  7. Enter the following query:
    SELECT Caption, VolumeName, VolumeSerialNumber, Size, FreeSpace, DriveType, MediaType FROM Win32_LogicalDisk
  8. Click Apply.


This should display Win32_LogicalDisk=<no key>.


Each of these is a different drive. You will need double click each one to find the one which has the C: drive (look in properties box for "Caption CIM_STRING C:").


Now you will see free space and space of the volume. You can check this against your C drive.


Disclaimer: Please note, any content posted herein is provided as a suggestion or recommendation to you for your internal use. This is not part of the SolarWinds software or documentation that you purchased from SolarWinds, and the information set forth herein may come from third parties. Your organization should internally review and assess to what extent, if any, such custom scripts or recommendations will be incorporated into your environment.  You elect to use third party content at your own risk, and you will be solely responsible for the incorporation of the same, if any.




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