On 10/20/19 10:44 PM, hhardly@xxxxxxxxxxx wrote: > With only the parent container assembled I have this: > > # cat /proc/mdstat > Personalities : > md0 : inactive sdc[0](S) > 5201 blocks super external:imsm > > Is "inactive" a problem? Adding --run to the --assemble makes no > difference. Is the small block count only for the superblocks? > > How can I assemble and access those Intel Matrix volumes? The "inactive" state is normal for containers. Try doing this now: # IMSM_NO_PLATFORM=1 mdadm --incremental /dev/md0 --run It should assemble both volumes as degraded. If that doesn't work, please send the output from "mdadm -E /dev/sdc". Regards, Artur