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[Question] what is the recommended procedure for replacing a pool on TrueNAS?

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.

narc0tic_bird ,

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

Shadow ,
@Shadow@lemmy.ca avatar

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

Rudee OP ,

Will this work even if the drives are different sizes?

Shadow ,
@Shadow@lemmy.ca avatar

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

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