[Question] what is the recommended procedure for replacing a pool on TrueNAS? (lemmy.ml)

submitted 4 months ago by Rudee@lemmy.ml to c/selfhost@lemmy.ml

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I bought some new drives to replace the old ones I had lying around, and want to replace them entirely (4x 1tb -> 2x 4tb). I have a few apps running on it (Syncthing, Transmission, Tailscale, etc.), and I wanted to know what the best way to perform a drive upgrade would be. AFAIK the apps are installed on the pool as well, so will I just have to reinstall them from scratch?

The motherboard has 5 SATA ports, which are all currently occupied, so I don't know if I can do an "in-house" replacement.

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[-] Shadow@lemmy.ca 5 points 4 months ago

Pull one drive at a time and replace it with the new one, let zfs rebuild and then do it again.

[-] Rudee@lemmy.ml 1 points 4 months ago

Will this work even if the drives are different sizes?

[-] Shadow@lemmy.ca 3 points 4 months ago

Yes, this is a commonly done thing. If you google you'll find a lot more info on this.

[-] narc0tic_bird@lemm.ee 1 points 4 months ago

Temporarily connect the new drives via USB enclosures and clone the data via ZFS snapshots.

this post was submitted on 05 Aug 2024

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