this post was submitted on 15 Mar 2024
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39
Optimize power consumption (derpzilla.net)
submitted 2 years ago* (last edited 2 years ago) by Kwa@derpzilla.net to c/selfhosted@lemmy.world
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So I have finally built my NAS. I used an N100 CPU because I saw it has low power consumption.

Right now I have 2 NVMe SSDs and 2 HDDs. I have installed proxmox on the 2 SSDs as RAID1. I have not partitioned the HDDs yet, they are just plugged in and powered on.

Just booting into proxmox, without any VMs or containers running, I am pulling 45W from the wall. This looks super high to me, and I’m afraid that starting to use the HDDs and running some VMs may double this…

I don’t have much references, but I have an Odroid with an external self-powered HDD, it is using 5W. I have a raspberry pi 4 with an external HDD, the raspberry is pulling 3W and the HDD 3W.

With these data, I was thinking I wouldn’t go over 20W. 45W is enormous and not something I can run 24/7, kind of a fail for a NAS…

Have I done something wrong or is it just how much it’s supposed to pull?

Edit: I have come across powertop. Using the auto tune, I was able to drop to 33-35W. I have unplugged the HDDs and dropped to 22W. I guess I cannot go lower, this may be because of the PSU or the 2 NVMe

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[–] Kwa@derpzilla.net 1 points 2 years ago (1 children)

I guess I’ll do this if I don’t find a way to reduce the power consumption

[–] darcmage@lemmy.dbzer0.com 6 points 2 years ago* (last edited 2 years ago) (2 children)

Troubleshooting can be difficult. I'll only say you'll save yourself alot of time and energy by establishing a baseline for power usage with just the essential components necessary for boot to see what you're working with. Then you can make better informed decisions.

[–] Kwa@derpzilla.net 1 points 2 years ago

Yes definitely. This is just that it was my first time assembling a PC. I had a bit of a hard time and I am not in a hurry to disassemble it 😅

That may change in a couple of days thought