Problem mounting raid disk

[David Lindh]

Hello,
I have a problem with my external network disk. Yesterday it stopt working completly and im trying to recover the data from the disks.

The device have used nraid system.

I have tried google the problem but realized that every case is different from mine in some way.

I was talking to a friend with more knowledge than me and he was helping me collect this data to help solving the problem.


david@david-desktop:~$ sudo mdadm --examine /dev/sdb3
/dev/sdb3:
Magic : a92b4efc
Version : 00.90.00
UUID : c542bda8:b8b1eef0:3ad3f1e4:0e5968ad
Creation Time : Tue Dec 2 10:31:54 2008
Raid Level : linear
Raid Devices : 2
Total Devices : 2
Preferred Minor : 1

Update Time : Tue Dec 2 10:31:54 2008
State : clean
Active Devices : 2
Working Devices : 2
Failed Devices : 0
Spare Devices : 0
Checksum : 2b85807 - correct
Events : 1

Rounding : 64K

Number Major Minor RaidDevice State
this 0 3 3 0 active sync

0 0 3 3 0 active sync
1 1 3 67 1 active sync



david@david-desktop:~$ sudo mdadm --assemble --run --uuid c542bda8:b8b1eef0:3ad3f1e4:0e5968ad /dev/sdb3
mdadm: no devices found for /dev/sdb3



david@david-desktop:~$ sudo mdadm --assemble --scan
mdadm: /dev/md0 has been started with 2 drives.
mdadm: failed to add 8:19 to /dev/md1: Invalid argument
mdadm: /dev/md1 assembled from 0 drives - not enough to start the array.



david@david-desktop:~$ sudo ls -la /dev/| grep "sd"
brw-rw---- 1 root disk 8, 0 2009-09-13 19:26 sda
brw-rw---- 1 root disk 8, 1 2009-09-13 19:26 sda1
brw-rw---- 1 root disk 8, 2 2009-09-13 17:26 sda2
brw-rw---- 1 root disk 8, 3 2009-09-13 19:26 sda3
brw-rw---- 1 root disk 8, 5 2009-09-13 19:26 sda5
brw-rw---- 1 root disk 8, 16 2009-09-13 19:26 sdb
brw-rw---- 1 root disk 8, 17 2009-09-13 19:26 sdb1
brw-rw---- 1 root disk 8, 18 2009-09-13 19:26 sdb2
brw-rw---- 1 root disk 9, 127 2009-09-13 18:15 sdb3
brw-rw---- 1 root disk 8, 20 2009-09-13 19:26 sdb4