On Tuesday June 12, simon@xxxxxxxxxxxxxxxxx wrote: > > > Can anyone please advise which commands we should use to get the array > back to at least a read only state? mdadm --assemble /dev/md0 /dev/sd[abcd]2 and let mdadm figure it out. It is good at that. If the above doesn't work, add "--force", but be aware that there is some possibility of hidden data corruption. At least a "fsck" would be advised. NeilBrown - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html