Hi Alex, More information please.... On 09/22/2011 02:07 PM, Alex wrote: > Hi, > > I have a RAID5 array that has died and I need help recovering it. > Somehow two of the four partitions in the array have failed. The > server was completely dead, and had very little recognizable > information on the console before it was rebooted. I believe they were > kernel messages, but it wasn't a panic. > > I'm able to read data from all four disks (using dd) but can't figure > out how to try and reassmble it. Here is some information I've > obtained by booting from a rescue CDROM and the mdadm.conf from > backup. > > Personalities : [raid0] [raid1] [raid6] [raid5] [raid4] [raid10] [linear] > md1 : inactive sda2[0] sdd2[4](S) sdb2[1] > 205820928 blocks super 1.1 > > md0 : active raid1 sda1[0] sdd1[3] sdc1[2] sdb1[1] > 255988 blocks super 1.0 [4/4] [UUUU] > > > # mdadm --add /dev/md1 /dev/sdd2 > mdadm: Cannot open /dev/sdd2: Device or resource busy > > # mdadm --run /dev/md1 > mdadm: failed to run array /dev/md1: Input/output error > > I've tried "--assemble --scan" and it also provides an IO error. > > mdadm.conf: > # mdadm.conf written out by anaconda > MAILADDR root > AUTO +imsm +1.x -all > ARRAY /dev/md0 level=raid1 num-devices=4 > UUID=9406b71d:8024a882:f17932f6:98d4df18 > ARRAY /dev/md1 level=raid5 num-devices=4 > UUID=f5bb8db9:85f66b43:32a8282a:fb664152 Please show the output of "lsdrv" [1] and then "mdadm -D /dev/md[01]", and also "mdadm -E /dev/sd[abcd][12]" (From within your rescue environment.) Some errors are likely, but get what you can. Phil [1] http://github.com/pturmel/lsdrv -- 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
