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How can I perform mathematical operations in a WQL script?



We are trying to monitor the Page File Usage on a Windows 2000 Server box, but the built in sensor says it can't understand the WMI class. I wrote my own as follows, but it can't be parsed. As you can see from the example below, I am trying to perform a division operation on the queried values. What am I doing wrong, or how could I go about resolving this issue?

Thanks, Zack

((SELECT CurrentUsage FROM Win32_PageFileUsage)/(SELECT AllocatedBaseSize FROM Win32_PageFileUsage))

custom-sensor math operations operator prtg wmi wql

Created on Feb 24, 2010 4:12:34 PM

Last change on Feb 25, 2010 10:46:50 AM by  Daniel Zobel [Product Manager]

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Accepted Answer




I'm very much afraid the Custom WQL-Sensors are not capable of mathematical operations, as you already experienced. However, it should be possible to use the Sensor Factory as a work-around. Please create two Custom WQL Sensors, one with SELECT CurrentUsage FROM Win32_PageFileUsage and the second with SELECT AllocatedBaseSize FROM Win32_PageFileUsage Then please perform the devision with one Sensor Factory sensor.

Best Regards

Created on Feb 24, 2010 4:53:43 PM by  Torsten Lindner [Paessler Support]

Last change on Feb 25, 2010 10:46:12 AM by  Daniel Zobel [Product Manager]

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