On 12/13/2013 04:11 PM, Alex wrote: > I'd really appreciate any guidance you could provide. > > Thanks, > Alex It simply looks like the drive designation changed /dev/sda -> /dev/sdc and mdadm kicked sda out of the array because it wasn't there. Are you not using UUID designation to assemble the arrays? What does your /etc/mdadm.conf look like? It looks like you could add /dev/sdc3 back into the array, let it rebuild if necessary, then use: mdadm --detail --scan >> /etc/mdadm.conf To create a new UUID based mdadm.conf that would prevent this from happening again. -- David C. Rankin, J.D.,P.E. -- 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