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this post was submitted on 21 Apr 2025
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Whether your drives are idle is also a very use-case specific thing and I wouldn't spend any time trying to generalize based on that math as a "oh this is how it works for everyone".
In my case, I've got 5 drives all spun up at all times because of torrrent clients, Jellyfin users, and just general media acquisition and public content serving.
This thing would dramatically reduce my power footprint and save me giant buckets of money over it's lifespan while being smaller/faster IO performance/lower noise.
(My current nas sucks down about 120-140w 24/7, so....)
Ouch. I'm around 50W, and my HW isn't anything special: Ryzen 1700 + 2 HDDs + 1 SSD.
Yeah it's the drives and the controller for all the drives that are making the power usage what it is. I could replace some of the older drives with a newer one and be able to ditch the smaller drives and controllers, but it seems a waste to do that until they die.
Also, I wouldn't mind ditching for a Sufficient(TM) amount of nvme storage, but SSDs aren't actually getting cheaper and are probably going to do the opposite, so I'll likely end up doing uh, nothing,
You can cycle the smaller drives to cold backup, that's not a waste. You do have backups, which RAID is not, right?