Hi, > Before you run any kind of mdadm command to try to reassemble your > volume, which could make things worse, do you, by any chance, have room > on another disk where you could image those two drives (e.g. 6TB of free > disk space) ? Thank you for your reply... I do have a spare disk where I can image the two drives. After that, I will try: mdadm --assemble -v /dev/md0 /dev/sdb /dev/sdd