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Problem with sensor state after reboot device

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The sensor goes in warning state for a couple of seconds after the device which the sensor is created on is rebooted. I've to recreate the sensor again and then it works fine. The device is a standard Windows server. THe sensor is a wmi volume type sensor. Could this be a bug or something?

Cheers R.

sensor warning wmi

Created on Dec 8, 2014 9:40:28 AM by  roberto_76 (10) 1



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Please try to go the sensor settings. Under "WMI Volume Specific", set the ID Selection to "Use Drive Letter". Windows tends to change the GUID of drives, which makes the used WMI class of the sensor obsolete.

Created on Dec 8, 2014 12:35:49 PM by  Stephan Linke [Paessler Support]



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Thanks, this sounds good te me!

Cheers R.

Created on Dec 8, 2014 12:46:29 PM by  roberto_76 (10) 1



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Unfortunately the issue still occurs even with the change of the sensor setting to "Use Drive Letter" We allready updated to 14.4.12.3510

Created on Jan 5, 2015 3:21:23 PM by  roberto_76 (10) 1



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Hm that's weird. Could you try using the SNMP Disk Free sensor and check if this one works better for you? In general, it's recommended to choose SNMP over WMI for performance reasons and quirks like the one you're experiencing :)

Created on Jan 7, 2015 7:48:41 AM by  Stephan Linke [Paessler Support]



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Disclaimer: 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.