Laszlo,

To find what sensors are available and some information about the sensors, Select a device -> select Properties -> Sensors Tab.

Also review this documentation to assist with the entity match:
https://www.observium.org/docs/entities/

I setup a checker very similar to yours below/attached is the detail:
Inline image 1

Sam Jones || CCNA

VoIP Network Engineer || Idaho State University

jonesamu@isu.edu  ||  (208) 282-4525


On Wed, Jan 18, 2017 at 1:42 AM, Laszlo Nemeth <lnemeth@emarsys.com> wrote:
Hello

Last night one of our Cisco Nexus FEX's PS went down and i realized that we don't have  alarm to check the status of the FEX's PS.

I would like to write one. I found a graph about this fault PS. Normally the value 2 but after that is went to fault state the value is 4. I attached the picture.

So the question is in this case what is Entity Match that i have to use? I tried this but it doesn't work:

sensor_value equal 4
hostname match *sw*
sensor_class equals PowerOperType

The "PowerOverType" came from the attached picture RRD name (it was just a try :) Or what is the normal way to find the sensor name for the alert?

Thanks

BR
Laszlo


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