People like FreeNAS.

I just installed alpine Linux. I just wanted a compact Linux with good ZFS support.

For backup i use restic to backblaze.

I moved from my old nas to my new in a similar manner.

I have a two disk mirror. Call the disks d1 and d2.

• removed d1 from the old server, put it in the new nas
• creat fresh filesystem on d1
• copied the data, over the network, from d2 to d1.
• took d2 from the old server and added it to a mirror with d1 in the new server. Let it resilver.

It worked, but I was damn sure to have a backup.

Also note, the ugreen nas software is garbage. Install your own os.

I’d be surprised if you find cheaper, but if you do, please report back.

Fwiw, BB have been super reliable for me over that past few years I’ve used them.

There’s a plan where you pay some tiny amount per gb. Thats the one to use.

I use restic to backup immich (and everything else) to b3.

Be sure to stop the docker container while you backup to avoid skew.

Backblaze saved my ass at the end of last year when I had a hardware failure.