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Missing RAID 6 array + LVM volume after hard reboot

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http://serverfault.com – After a restart which stalled, I did a hard reboot and now mdadm can't see the RAID 6 array anymore, LVM can't find the volume which was on that raid array. I have looked into /etc/mdadm/mdadm.conf, it doesn't contain my /dev/md2 (the RAID 6 array). How can I restore the RAID 6 array and then the LVM volume without losing any data? OK, so I did an mdadm --assemble --scan and it re-assembled /dev/md2, but it missed one of the drives. The missing drive seems to have been added to a new, inactive array: md_d2 : inactive sdb1[3](S) 1953511936 blocks Going to remove it now and add manually t (HowTos)