Hi everyone, Is there a way to force mdadm to assemble a certain set of drives into a particular RAID format? A friend of mine had a NAS that was hit with ransomware. His setup was a RAID-5, 64kb chunk size, 4x4TB, XFS filesystem setup, while during the attack, they overwrote the config to be RAID-0/512kb chunk size (it is a Buffalo NAS, running Linux with libmd). He pulled the plug while it was in the process of formatting the XFS filesytem. Much of the data I have been able to recover, but now it would be a lot nicer for me if I could access a raw /dev device assembled as RAID-5/64kb chunk (rather than the current RAID-0 mdadm/mdstat currently shows), instead of using a tool like UFS Explorer to assemble it properly for me. Obviously, minimal (preferably none) writes to the disk if possible. I was afraid to start throwing mdadm assemble and create commands around. Could someone please advise on best path forward? Thanks in advance, Mike
