MDADM rebuild crashing

[jscheponik]

After a recent power outage, my mdadm raid5 array will now lock up my machine when i try to rebuild it. I use this command:

 

Code:

/sbin/mdadm --assemble --force /dev/md0 /dev/sda /dev/sdc /dev/sdd

 

When i do an mdadm --examine i get this:

 

Code:

[root@localhost realms]# /sbin/mdadm --examine /dev/sda /dev/sda: Magic : a92b4efc Version : 00.90.00 UUID : 0b5156a9:a5f3a4ef:3262aff4:7e565f58 Creation Time : Thu Jun 12 14:12:07 2008 Raid Level : raid5 Used Dev Size : 156290816 (149.05 GiB 160.04 GB) Array Size : 312581632 (298.10 GiB 320.08 GB) Raid Devices : 3 Total Devices : 3 Preferred Minor : 0 Update Time : Mon Aug 25 18:19:29 2008 State : active Active Devices : 3 Working Devices : 3 Failed Devices : 0 Spare Devices : 0 Checksum : a57fc0d4 - correct Events : 0.15 Layout : left-symmetric Chunk Size : 64K Number Major Minor RaidDevice State this 0 8 0 0 active sync /dev/sda 0 0 8 0 0 active sync /dev/sda 1 1 8 32 1 active sync /dev/sdc 2 2 8 48 2 active sync /dev/sdd [root@localhost realms]# /sbin/mdadm --examine /dev/sdc /dev/sdc: Magic : a92b4efc Version : 00.90.00 UUID : 0b5156a9:a5f3a4ef:3262aff4:7e565f58 Creation Time : Thu Jun 12 14:12:07 2008 Raid Level : raid5 Used Dev Size : 156290816 (149.05 GiB 160.04 GB) Array Size : 312581632 (298.10 GiB 320.08 GB) Raid Devices : 3 Total Devices : 3 Preferred Minor : 0 Update Time : Mon Aug 25 18:19:29 2008 State : active Active Devices : 3 Working Devices : 3 Failed Devices : 0 Spare Devices : 0 Checksum : a57fc0f6 - correct Events : 0.15 Layout : left-symmetric Chunk Size : 64K Number Major Minor RaidDevice State this 1 8 32 1 active sync /dev/sdc 0 0 8 0 0 active sync /dev/sda 1 1 8 32 1 active sync /dev/sdc 2 2 8 48 2 active sync /dev/sdd [root@localhost realms]# [root@localhost realms]# /sbin/mdadm --examine /dev/sdd /dev/sdd: Magic : a92b4efc Version : 00.90.00 UUID : 0b5156a9:a5f3a4ef:3262aff4:7e565f58 Creation Time : Thu Jun 12 14:12:07 2008 Raid Level : raid5 Used Dev Size : 156290816 (149.05 GiB 160.04 GB) Array Size : 312581632 (298.10 GiB 320.08 GB) Raid Devices : 3 Total Devices : 3 Preferred Minor : 0 Update Time : Mon Aug 25 18:19:29 2008 State : active Active Devices : 3 Working Devices : 3 Failed Devices : 0 Spare Devices : 0 Checksum : a57fc108 - correct Events : 0.15 Layout : left-symmetric Chunk Size : 64K Number Major Minor RaidDevice State this 2 8 48 2 active sync /dev/sdd 0 0 8 0 0 active sync /dev/sda 1 1 8 32 1 active sync /dev/sdc 2 2 8 48 2 active sync /dev/sdd [root@localhost realms]#

 

In my /etc/mdadm.conf i have this:

 

Code:

DEVICE /dev/sda /dev/sdc /dev/sdd ARRAY /dev/md0 level=raid5 devices=3 UUID=0b5156a9:a5f3a4ef:3262aff4:7e565f58

 

When i type /sbin/mdadm --assemble --scan -v i get this

 

Code:

[root@localhost realms]# /sbin/mdadm --assemble --scan -v mdadm: looking for devices for /dev/md0 mdadm: /dev/sda is not one of 3 mdadm: /dev/sdc is not one of 3 mdadm: /dev/sdd is not one of 3 mdadm: no devices found for /dev/md0

 

Any help on this matter would be greatly appreciated. If there is any other info you need, please let me know. I have some very important data i need to get off these drives. I have recently purchased an Adaptec RAID controller to put in but haven't had a chance to do it yet. Thanks in advance for your help.