Details
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New Feature
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Resolution: Unresolved
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Minor
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None
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None
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Description
We have obs monitoring our PDUs, which all provide per-port level consumption data.
Many of our servers have 4 or 6 PSUs.
This means that tracking the total power consumption of a server is quite an involved process, as it involves aggregating 4 or 6 power values.
This is especially complicated by the fact that GPU servers have very irregular power draws (depending on their workloads) and can cycle their primary PSUs (rather than balancing load over all of them).
What would be truly amazing would be if I could create a pseudo-device entity in obs (e.g. "Server" and then create a pseudo-sensor "Power draw" that was the aggregate of several existing entities (pdu A, sensor A', pdu B, sensor B' etc).
Then there'd be just one aggregate graph to look at for the power consumption of a device.
I appreciate this is likely impossible, but I thought I'd mention it just in case.
Thanks!
This is not really possible with how Observium is structured. I might have been able to do this sort of thing 15 years ago, but I think at this point we have too much stuff wedded to the device/entity paradigm that trying to do pseudo-devices would need trillions of if() statements to work around!
Groups might be a way to get what you want.
Besides that, a way to build manual multi-entity graphs without groups might be useful.