I've been tasked with restoring a RAID from a failed Buffalo NAS. the NAS box has failed, but our understanding at this point is that the drives are still functioning. I believe that Buffalo's NAS was using mdraid+Linux in a RAID5 of 4x1TB drives. my understanding of
mdadm is that it's not smart enough to figure out the correct striping of the drives by itself.
I've seen a DEFCON presentation on "Rebuilding RAID By Sight and Sound", so I know some techniques for manually determining the order if I can get access to the drives. I'm not sure how to go about working on these in a non-destructive way. I'm not sure I can even get access to 4TB of scratch space for storing working images.
I'll update as I go/research, but some pointers on how to proceed would be appreciated!