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Hardware raccomandation for new selfhoster (feddit.it)

submitted 15 hours ago* (last edited 14 hours ago) by bordam@feddit.it to c/selfhosted@lemmy.world

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Hi, I wanted to start selfhosting and I'd like to have your opinion on something that I'm struggling to decide.

I don't plan to tinker too much with my system, I've been a Linux tinkerer myself some time ago but now I'd like to setup something that's really bulletproof and then leave it running (ofc I know I'll have to do a bit of bugfixing now and then), not replacing hardware ideally for >= 10 years.

This is why I'm planning to use TrueNAS, and that's why I'm planning to buy a UGREEN DXP2800: has two 3,5" HDD bays (4TB should be enough for me for the next 8-10 years, so I'll have two 4TB disks in RAID1 or mirror or whatever is recommended). Only problem I have with this machine is that it only has 1 RAM slot, and I guess 8 GB isn't enough if I use zfs. So I'll have to upgrade to either 16 or 32 GB. Now I did my research and from my understanding 16GB seems to be enough, but it would be such a waste having to replace the whole RAM if it turns out it isn't enough.

For reference, I don't plan on having more than 7-8 services running: Immich, Nextcloud+office, firefly, audiobookshelf, paperless and a maybe few more if they're useful. I value responsiveness but it's ok if some things take longer to process (thinking immich ML, or stuff like transcoding)

I'm very interested to know your opinion:

is the dxp2800 a good choice?
should I go with 16 or 32 GB RAM?

And a little extra

how much ssd space do you recommend for high speed data? is 500gb enough?

Thank you so much!

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[–] Onomatopoeia@lemmy.cafe 1 points 5 hours ago* (last edited 5 hours ago)

One drive failure means an array is degraded until resilvering finishes (unless you have hot spare, at least then the array isn't degraded and silvering a new drive isn't as risky).

Resilvering is an intensive process that can push other drives to fail.

I have a ZFS system that takes the better part if a day (24 hours) to resilver a 4TB drive in an 8TB five-drive array (single parity) that's about 70% full. When uts resilvering I have to be confident my other data stores don't fail (I have the data locally on 2 other drives and a cloud backup).