On Friday November 12, bugzilla@xxxxxxxxxxxxxxxx wrote: > First, stop using the old raid tools. Use mdadm only! mdadm would not have > allowed your error to occur. I'm afraid this isn't correct, though the rest of Guy's advice is very good (thanks Guy!). mdadm --remove does exactly the same thing as raidhotremove It is the kernel that should (and does) stop you from hot-removing a device that is working and active. So I'm not quite sure what happened to Robert... Robert: it is always useful to provide specific with the output of cat /proc/mdstat and mdadm -D /dev/mdX This avoids possible confusion over terminology. 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