Hello, i'm looking to understand why i can't start my RAID0 volume since i had a power failure this afternoon. Nothing regarding hardware was changed/added/removed. System : Debian Unstable + Kernel 2.6.7-mm4 (worked rock solid for months) Hardware : Dell Poweredge 2600 + 2xPowervault 210S diskshelves + PERC3/QC RAID adapter Filesystem: ReiserFS, /dev/md0 built last February, 500 Go mdadm : 1.7.0 The underlying Hardware RAID 1 part looks ok : each /dev/sd[efghijk]1 is a hardware RAID 1 which is set on the PERC RAID adapter. Every logical volume is reported as "optimal" state Out of these 7 logical volumes, i've built a Software RAID-0 using mdadm: # cat /etc/mdadm/mdadm.conf DEVICE /dev/sd[efghijk]1 ARRAY /dev/md0 level=raid0 num-devices=7 UUID=46c66ef8:8acf2810:48adb2d3:85b04900 devices=/dev/sdk1,/dev/sdj1,/dev/sdi1,/dev/sdh1,/dev/sdg1,/dev/sdf1,/dev/sde1 After the power failure, i can't start the RAID0 device anymore: # mdadm -v -A /dev/md0 mdadm: looking for devices for /dev/md0 mdadm: /dev/sdk1 has wrong uuid. mdadm: /dev/sdj1 has wrong uuid. mdadm: /dev/sdi1 has wrong uuid. mdadm: /dev/sdh1 has wrong uuid. mdadm: /dev/sdg1 has wrong uuid. mdadm: /dev/sdf1 has wrong uuid. mdadm: /dev/sde1 has wrong uuid. mdadm: no devices found for /dev/md0 Still, every # mdadm -E /dev/sd[efghijk]1 looks ok, output can be found here: http://philou.org/mdadm.log mdadm.conf is here : http://philou.org/mdadm.conf # mdadm -QE --scan ARRAY /dev/md0 level=raid0 num-devices=7 UUID=3c1ad678:d3a7a1ed:1112143d:68b4e569 devices=/dev/sdk1,/dev/sdj1,/dev/sdi1,/dev/sdh1,/dev/sdg1,/dev/sdf1,/dev/sde1 Any hope to get my data back ? Thanks, Philippe - 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
