Power spike every 30 minutes, for 5 minutes

[CR500AF]

Just transitioned to TrueNAS scale - loving it!

My goal is to keep my power consumption as low power as possible. I've enabled drive spindown per this aim (I'm aware of the controversy regarding the topic...). When I check my power consumption log, I see a 5 minute spike, every half hour. Tips on eliminating that spike?

My configuration is a 9211-8i in IT mode, 4 SAS drives in a ZFS2 pool. This TrueNAS scale server is a VM within Proxmox 8 (Raid card passed through exclusively to TrueNAS).

View attachment 69648

View attachment 69649
I do know that if I stop the TrueNAS VM, the spikes stop, so it's definitely TrueNAS.

It's possible something in my network is "pinging" a mapped drive... or could it be a "SMART" setting? Tips on where / how to start looking. Thx!

 

[ChrisRJ]

This TrueNAS scale server is a VM within Proxmox 8 (Raid card passed through exclusively to TrueNAS).

Any RAID card is recipe for disaster. Your hardware description is not conclusive in that you mentioned an HBA before. So which one is it?

 

[CR500AF]

9211-8i raid card in it mode
Intel i7-9700
Chipset Z370
64gig of ram
Drives are hgst brand… I can find more details tonight.

 

[ChrisRJ]

9211-8i raid card in it mode

Thanks for the clarification.

A RAID card is unsuitable for ZFS, whether or not it is in IT mode. An HBA with IT firmware is something completley different than a RAID card in IT mode.

 

[CR500AF]

Thanks for the clarification.

A RAID card is unsuitable for ZFS, whether or not it is in IT mode. An HBA with IT firmware is something completely different than a RAID card in IT mode.

Ahhh, I suspect I'm confusing terms... Sorry. I purchased this card from ebay and the listing (and I confirmed with Control-C during post), that the card has been flashed to IT firmware. I was throwing around the term "raid card" as my paradigm was the card WAS capable of implementing HW raid... but my terminology was poor and confusing. Thx for the correction.

 

[Davvo]

Is your smart test scheduling compatibile with this behaviour?

 

[CR500AF]

I uncheck the "Enable S.M.A.R.T" and the spikes have been gone for over 24 hours!

@Davvo, I nosed around a few places in the GUI, but couldn't find anything scheduled at a 1/2 hour period. IDK.

Thx all!

 

[Davvo]

I mean, you really want to have SMART enabled. The tab should be under Tasks iirc.