Hi,
My probe device is continuously flicking between Disk Free 0% and 52%. I am on the latest unstable build - so should I be submitting faults somewhere rather than asking here?
Pic:
Cheers James
Erroneous Disk Free notifications
Modified on 2025-06-10 14:36:35 +0200
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The information in the Paessler Knowledge Base comes without warranty of any kind. Use at your own risk. Before applying any instructions please exercise proper system administrator housekeeping. You must make sure that a proper backup of all your data is available.
The information in the Paessler Knowledge Base comes without warranty of any kind. Use at your own risk. Before applying any instructions please exercise proper system administrator housekeeping. You must make sure that a proper backup of all your data is available.
Hello,
unfortunately, we don't have a solution for the problem when WMI Free Disk Space Sensors (Multi Drive) report 0 free space for a short period. We have seen it from a few other customers as well, and once in our lab. In those incidents the WMI Responses are really '0'-values directly from the monitored host (so the WMI Counter on the host reports a wrong value for a short time). We do not know why this happens, I'm afraid. Please try using the "WMI Volume"- Sensor ("WMI Free Disk Space (Single Drive)" in PRTG 8), for some users this sensor did not show this problem.
Unfortunately WMI is not the most stable and reliable platform for monitoring, so it seems, please also see the following WMI-Troubleshooting articles:
https://kb.paessler.com/knowledgebase/en/topic/1073-what-are-the-most-common-errors-when-monitoring-wmi
https://kb.paessler.com/knowledgebase/en/topic/1093-my-wmi-sensors-show-errors-with-a-pe-code-what-does-that-mean
Dec, 2012 - Permalink