Thanks. You have a number of options.   If you have backed everything up from volume 2 (after salvaging what you can from volume 1) then you can do a fresh install on your new drives. I have a question about the version of DSM you have chosen (later). Then you can restore data, install packages and start configuring.   If you haven't, then you could put your new drives into the NAS, with volume 2 and then boot. You could then create a new RAID group on the two disks and
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