

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.





For backup i use restic to backblaze.