On Monday May 8, maurice@xxxxxxxxxxxx wrote: > Good evening. > > I am having a bit of a problem with a largish RAID5 set. > Now it is looking more and more like I am about to lose all the data on > it, so I am asking (begging?) to see if anyone can help me sort this out. > Very thorough description, but you omitted the 'dmesg' output corresponding to : > > [root@box ~]# mdadm > --assemble /dev/md3 /dev/sdq1 /dev/sdr1 /dev/sds1 /dev/sdt1 /dev/sdu1 > /dev/sdv1 /dev/sdx1 /dev/sdy1 /dev/sdz1 /dev/sdaa1 /dev/sdab1 /dev/sdac1 > /dev/sdad1 /dev/sdae1 /dev/sdaf1 > mdadm: failed to RUN_ARRAY /dev/md3: Invalid argument Also, you don't seem to have tried '--force' with '--assemble'. It might help. 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