Hi everyone!

When I do an auto discover on my windows servers, the WMI memory shows as "% of Free Memory" which drives my co workers crazy since they are so used to seeing memory shown as "% of Used Memory".

Is there a way I can change this sensor to reflect "% of Used Memory"?

Article Comments

Hello,

thank you very much for your KB-Post. I'm afraid this cannot be changed within the sensor. You could use a Sensor Factory Sensor to perform the conversion though.

best regards.


Jun, 2014 - Permalink

Ummmm. haha. No wonder every forum post i found requesting this never had an answer. All there was in the post was a link to Sensor Factory Sensor....

Would it be to much to ask that you whip up a quick step by step so at least anyone searching for the same question finds this answer?


Jun, 2014 - Permalink

It's quite easy actually, just get the ID of the source WMI Memory Sensor, then create a Factory Sensor with a Channel Definition like:

#1:Percent Used Memory
100 - channel(SENSOR_ID_OF_SOURCE_WMI_MEMORY_SENSOR, 0)

Please check if the Channel ID is also 0 then in your case.


Jun, 2014 - Permalink

BINGO, i figured it out!

Ok for anyone finding this page. Follow these instructions:

1) Be sure that you've already added a WMI Memory sensor for the server you want to pull % Used Memory info from. You're going to need that sensor ID number in the next part. 3) Under that same server, click Add Sensor 4) Search for "factory" and click "Add this" under "Factory Sensor" 5) In the channel definition field paste this:

#1:Percent Used Memory
100 - channel(SENSOR_ID_OF_SOURCE_WMI_MEMORY_SENSOR_FROM_STEP_1_, 0)

So lets say your WMI Memory sensor (the annoying one that only shows % available and not % used) is 8475. It should look like this:

#1:Percent Used Memory
100 - channel(8475, 0)

All done! Thanks for the help Torsten!


Jun, 2014 - Permalink