NVME A250 Power Metrics | NetApp | Page 1

cloud oxide Oct 21, 2022, 9:24 AM

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@hot wing Is power data missing for Node or shelf or both?

hot wing Oct 21, 2022, 9:26 AM

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both actually @cloud oxide

cloud oxide Oct 21, 2022, 9:26 AM

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This could be similar to issue https://github.com/NetApp/harvest/issues/1173 where we have added support for AFF900. Could you share the output of below commands and logs for the poller.
bin/zapi -p POLLERNAME show data --api environment-sensors-get-iter --max 10000
bin/zapi -p POLLERNAME show data --api storage-shelf-info-get-iter --max 10000

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You can mail these to us at ng-harvest-files@netapp.com

hot wing Oct 21, 2022, 9:29 AM

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where do I need to execute these commands?

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on the appliance via ssh directly? @cloud oxide

cloud oxide Oct 21, 2022, 9:30 AM

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on NABox, you can run them like below screenshot. You need to login as root as mentioned here https://nabox.org/documentation/configuration/

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log collection can be done through below command in nabox
dc logs nabox-harvest2 > nabox-harvest2.log

cloud oxide Oct 21, 2022, 9:49 AM

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NVME A250 Power Metrics

hot wing Oct 21, 2022, 10:03 AM

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@cloud oxide mail has just been sent 🙂

cloud oxide Oct 21, 2022, 10:05 AM

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Thanks Received

hot wing Oct 21, 2022, 10:42 AM

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@cloud oxide the version is the latest, 3.1.2 NAbox

cloud oxide Oct 21, 2022, 10:45 AM

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I have checked the information Erik. Below is the analysis.

1: Shelf data is interesting. If you check the output, It doesn't have any sensor data. Below are the logs
nabox-harvest2 | 9:45AM WRN shelf/shelf.go:393 > no [voltage-sensors] instances on this system Poller= object=Shelf plugin=Zapi:Shelf
nabox-harvest2 | 9:45AM WRN shelf/shelf.go:393 > no [current-sensors] instances on this system Poller= object=Shelf plugin=Zapi:Shelf
nabox-harvest2 | 9:45AM WRN shelf/shelf.go:393 > no [power-supply-units] instances on this system Poller= object=Shelf plugin=Zapi:Shelf
nabox-harvest2 | 9:45AM WRN shelf/shelf.go:393 > no [temperature-sensors] instances on this system Poller= object=Shelf plugin=Zapi:Shelf
nabox-harvest2 | 9:45AM WRN shelf/shelf.go:393 > no [voltage-sensors] instances on this system Poller= object=Shelf plugin=Zapi:Shelf
nabox-harvest2 | 9:45AM WRN shelf/shelf.go:393 > no [cooling-fans] instances on this system Poller= object=Shelf plugin=Zapi:Shelf

hot wing Oct 21, 2022, 10:46 AM

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What does that mean? All other metrics like fan speed, temperature etc. Appear just fine also for the nvmd systems.

cloud oxide Oct 21, 2022, 10:46 AM

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About node power, We could not find any power sensors in the output hence no power was calculated. Logs below
nabox-harvest2 | 9:45AM WRN sensor/sensor.go:258 > current and voltage sensor are ignored Poller= current size=0 object=Sensor plugin=Zapi:Sensor voltage size=0

cloud oxide Oct 21, 2022, 10:48 AM

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hot wing What does that mean? All other metrics like fan speed, temperature etc. Appear j...

yes, Ontap did not return any data about these sensors.

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You may compare the response from other poller vs this to see the difference

cloud oxide Oct 21, 2022, 10:51 AM

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cloud oxide About node power, We could not find any power sensors in the output hence no pow...

For node power, harvest tries to search for power sensors if not found, it tries to search for voltage,current sensors. If none of them are found then power is returned as 0. Power regex are defined here https://github.com/NetApp/harvest/blob/main/cmd/collectors/zapi/plugins/sensor/sensor.go#L44-L46

hot wing Oct 21, 2022, 10:54 AM

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cloud oxide You may compare the response from other poller vs this to see the difference

It is the same on different systems

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Is there any way to fix this? Should I create a case?

cloud oxide Oct 21, 2022, 10:56 AM

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For shelf, Sensor Data is not present at all for Harvest to calculate. Yes a case would be way to go.

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for example from one of my system, I get current-sensor data for shelf

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Could you share the ontap version?

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May be check once if shelf sensor data is present through Rest from below URL. It will most probably be same as Zapi.
https://CLUSTER_IP/api/storage/shelves?fields=**

hot wing Oct 21, 2022, 11:04 AM

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No, there is no shelf sensor date present on A250 systems

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But on other models there is @cloud oxide

cloud oxide Oct 21, 2022, 11:06 AM

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hot wing No, there is no shelf sensor date present on A250 systems

ok makes sense then that Harvest doesn't report any sensor information about shelf for A250.

hot wing Oct 21, 2022, 11:07 AM

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cloud oxide ok makes sense then that Harvest doesn't report any sensor information about she...

So you think a case is worth it? Or is this just expected behaviour.

cloud oxide Oct 21, 2022, 11:08 AM

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hot wing So you think a case is worth it? Or is this just expected behaviour.

I am not sure about the behaviour of A250 systems. Ontap support would be able to answer it.

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An Ontap case would help answering this.

hot wing Oct 21, 2022, 11:09 AM

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Ok perfekt I will create a case for this. Thanks for your great help @cloud oxide !

cloud oxide Oct 21, 2022, 11:10 AM

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You are welcome. You can share with us the case id so that we can track internally.

hot wing Oct 21, 2022, 11:10 AM

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Sure, will do once I got it

cloud oxide Oct 21, 2022, 11:12 AM

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Just to clarify, Shelf power/sensor are calculated from the data you shared in storage shelf info.txt

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and Node power is from environment sensors.txt

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For Node power, Harvest algorithm couldn't find any power sensors either. So both are different problems.

hot wing Oct 21, 2022, 11:50 AM

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@cloud oxide just sent you the case number via mail. Feel free to write in the case your findigs etc.

#NVME A250 Power Metrics