Ok so I found the superblocks, backed them up, then created the array (it was sdc,sdd,sde,sda,missing -- luckily I got that first time around :). I checked out the first few sectors of /dev/md0 and it APPEARS to be LLVM, as shown below. Now before I do anything that writes the disks any more, I want to be sure that if I'm seeing this I'm golden. What do I need to do to bring the last disk back into the array? 00000210 82 d3 36 66 20 00 00 00 4c 56 4d 32 20 30 30 31 |..6f ...LVM2 001| 00000220 75 67 35 77 55 43 59 6e 34 57 71 39 49 38 53 35 |ug5wUCYn4Wq9I8S5| 00000230 41 31 45 6d 69 79 71 32 51 78 68 42 39 63 32 78 |A1Emiyq2QxhB9c2x| Many thanks for all of your help! -- 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