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How bad of an idea is it to use computing HDDs in a DIY NAS? (sopuli.xyz)

submitted 4 months ago by theorangeninja@sopuli.xyz to c/selfhosted@lemmy.world

60 comments fedilink hide all child comments

The title says basically everything but let me elaborate.

Given the recent news about the sold out of harddrives for the current year and possibly also the next years (tomshardware article) I try to buy the HDDs I want to use for the next few years earlier than expected.

I am on a really tight budget so I really don't want to overspend. I have an old tower PC laying around which I would like to turn into a DIY NAS probably with TrueNAS Scale.

I don't expect high loads, it will only be 1-2 users with medium writing and reading.

In this article from howtogeek the author talks about the differences and I get it, but a lot of the people commenting seem to be in a similar position as I am. Not really a lot of read-write load, only a few users, and many argue computing HDDs are fine for this use case.

Possibilites I came up with until now:

Buy two pricey Seagate Ironwolf or WD Red HDDs and put them in RAID1
Buy three cheaper Seagate Barracuda or WD Blue and put two in RAID1 and keep one as a backup if (or should I say when?) one of the used drives fails.

I am thankful for every comment or experience you might have with this topic!

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[–] eleitl@lemmy.zip 7 points 4 months ago* (last edited 4 months ago) (2 children)

I can explain in more detail later.

A hot spare is a spinning disk that is known to the system and is automatically added to a RAID/pool when a disk there fails, and then triggers rebuild/resilvering of the RAID.

A cold spare is a disk added manually by the user.

[–] theorangeninja@sopuli.xyz 2 points 4 months ago (1 children)

So if you can use a hot spare is mainly depentend on the OS you use I suppose?

[–] eleitl@lemmy.zip 2 points 4 months ago

Hardware RAID host adapters can handle hot spares OS-agnostically, but for zfs these days it means Linux or *BSD. For a NAS I would go with a BSD distro, for hyperconverged Proxmox on top of Debian.

[–] fhein@lemmy.world 1 points 4 months ago (1 children)

You mean "spinning disk" metaphorically, right? Or is there any reason to not have it in low power standby mode? I don't have any hot spare in my server, but on my desktop I use hdparm to spin down a rarely used storage drive just because it's so loud.

[–] eleitl@lemmy.zip 1 points 4 months ago

Yes, just powered so the system is aware of it.