Greetings,
I have an 8 x 75 GB IDE array in RAID5 mode that I'm trying to get back
into a workable state (ie. degraded mode) so I can remove the contents.
The problem developed during an fsck after a clean reboot and appeared to
be one failed drive.
The reconstruction happily began when assembling the array with:
mdadm -Av --force /dev/md0 /dev/sda1 /dev/sdb1 /dev/sdc1 /dev/sde1 \
/dev/sdf1 /dev/sdg1 /dev/sdh1
However, drive sdd1 resulted in some errors after mounting the array and
accessing files.
Dec 10 10:52:18 thuner-raid3c kernel: 3w-xxxx: scsi0: Command failed:
status = 0xc7, flags = 0x51, unit #3.
But now one of the remaining 7 drives (sdg1) is now being marked as spare.
I've tried unsuccessfully re-adding it to the array but won't proceed
since the raid array won't be assembled. The 7 working drives are all
part of the original 8 drive array (sda1 to sdh1) so I was hoping to at
least get the array into degraded-mode.
---
[root@thuner-raid3 root]# mdadm -Av --force /dev/md0 /dev/sda1 /dev/sdb1 \
/dev/sdc1 /dev/sde1 /dev/sdf1 /dev/sdg1 /dev/sdh1
mdadm: looking for devices for /dev/md0
mdadm: /dev/sda1 is identified as a member of /dev/md0, slot 0.
mdadm: /dev/sdb1 is identified as a member of /dev/md0, slot 1.
mdadm: /dev/sdc1 is identified as a member of /dev/md0, slot 2.
mdadm: /dev/sde1 is identified as a member of /dev/md0, slot 4.
mdadm: /dev/sdf1 is identified as a member of /dev/md0, slot 5.
mdadm: /dev/sdg1 is identified as a member of /dev/md0, slot 8.
mdadm: /dev/sdh1 is identified as a member of /dev/md0, slot 7.
mdadm: added /dev/sdb1 to /dev/md0 as 1
mdadm: added /dev/sdc1 to /dev/md0 as 2
mdadm: no uptodate device for slot 3 of /dev/md0
mdadm: added /dev/sde1 to /dev/md0 as 4
mdadm: added /dev/sdf1 to /dev/md0 as 5
mdadm: no uptodate device for slot 6 of /dev/md0
mdadm: added /dev/sdh1 to /dev/md0 as 7
mdadm: added /dev/sdg1 to /dev/md0 as 8
mdadm: added /dev/sda1 to /dev/md0 as 0
mdadm: /dev/md0 assembled from 6 drives and 1 spare - not enough to start
the array.
---
Basically I would like to move sdg1 to slot 6 from slot 8.
Any advice or suggestions on how to re-add the spare drive would be
appreciated.
Below are the details of the setup.
Many thanks in advance.
Best regards,
Bryan.
-----------------------------------------------------------
Bryan L. Caron
EMAIL: caron@phys.ualberta.ca
------------------------------------------------------------
RedHat Linux 7.3
Kernel 2.4.20-24.7
mdadm-1.4.0-1 (raid5 originally created with mkraid)
3ware 6800 controller
/dev/sda1:
Magic : a92b4efc
Version : 00.90.00
UUID : 765a4a48:bb833995:cae6f280:3cca6ac9
Creation Time : Wed Dec 11 22:40:16 2002
Raid Level : raid5
Device Size : 75063616 (71.59 GiB 76.87 GB)
Raid Devices : 8
Total Devices : 7
Preferred Minor : 0
Update Time : Wed Dec 10 19:08:29 2003
State : clean, no-errors
Active Devices : 6
Working Devices : 7
Failed Devices : 0
Spare Devices : 1
Checksum : 65048751 - correct
Events : 0.27
Layout : left-asymmetric
Chunk Size : 64K
Number Major Minor RaidDevice State
this 0 8 1 0 active sync /dev/sda1
0 0 8 1 0 active sync /dev/sda1
1 1 8 17 1 active sync /dev/sdb1
2 2 8 33 2 active sync /dev/sdc1
3 3 0 0 3 faulty removed
4 4 8 65 4 active sync /dev/sde1
5 5 8 81 5 active sync /dev/sdf1
6 6 0 0 6 faulty removed
7 7 8 113 7 active sync /dev/sdh1
8 8 8 97 8 spare /dev/sdg1
/dev/sdb1:
Magic : a92b4efc
Version : 00.90.00
UUID : 765a4a48:bb833995:cae6f280:3cca6ac9
Creation Time : Wed Dec 11 22:40:16 2002
Raid Level : raid5
Device Size : 75063616 (71.59 GiB 76.87 GB)
Raid Devices : 8
Total Devices : 7
Preferred Minor : 0
Update Time : Wed Dec 10 19:08:29 2003
State : clean, no-errors
Active Devices : 6
Working Devices : 7
Failed Devices : 0
Spare Devices : 1
Checksum : 65048763 - correct
Events : 0.27
Layout : left-asymmetric
Chunk Size : 64K
Number Major Minor RaidDevice State
this 1 8 17 1 active sync /dev/sdb1
0 0 8 1 0 active sync /dev/sda1
1 1 8 17 1 active sync /dev/sdb1
2 2 8 33 2 active sync /dev/sdc1
3 3 0 0 3 faulty removed
4 4 8 65 4 active sync /dev/sde1
5 5 8 81 5 active sync /dev/sdf1
6 6 0 0 6 faulty removed
7 7 8 113 7 active sync /dev/sdh1
8 8 8 97 8 spare /dev/sdg1
/dev/sdc1:
Magic : a92b4efc
Version : 00.90.00
UUID : 765a4a48:bb833995:cae6f280:3cca6ac9
Creation Time : Wed Dec 11 22:40:16 2002
Raid Level : raid5
Device Size : 75063616 (71.59 GiB 76.87 GB)
Raid Devices : 8
Total Devices : 7
Preferred Minor : 0
Update Time : Wed Dec 10 19:08:29 2003
State : clean, no-errors
Active Devices : 6
Working Devices : 7
Failed Devices : 0
Spare Devices : 1
Checksum : 65048775 - correct
Events : 0.27
Layout : left-asymmetric
Chunk Size : 64K
Number Major Minor RaidDevice State
this 2 8 33 2 active sync /dev/sdc1
0 0 8 1 0 active sync /dev/sda1
1 1 8 17 1 active sync /dev/sdb1
2 2 8 33 2 active sync /dev/sdc1
3 3 0 0 3 faulty removed
4 4 8 65 4 active sync /dev/sde1
5 5 8 81 5 active sync /dev/sdf1
6 6 0 0 6 faulty removed
7 7 8 113 7 active sync /dev/sdh1
8 8 8 97 8 spare /dev/sdg1
/dev/sdd1:
Magic : a92b4efc
Version : 00.90.00
UUID : 765a4a48:bb833995:cae6f280:3cca6ac9
Creation Time : Wed Dec 11 22:40:16 2002
Raid Level : raid5
Device Size : 75063616 (71.59 GiB 76.87 GB)
Raid Devices : 8
Total Devices : 7
Preferred Minor : 0
Update Time : Wed Dec 10 19:02:43 2003
State : dirty, no-errors
Active Devices : 6
Working Devices : 5
Failed Devices : 2
Spare Devices : 1
Checksum : 65048641 - correct
Events : 0.22
Layout : left-asymmetric
Chunk Size : 64K
Number Major Minor RaidDevice State
this 9 8 49 9 spare /dev/sdd1
0 0 8 1 0 active sync /dev/sda1
1 1 8 17 1 active sync /dev/sdb1
2 2 8 33 2 active sync /dev/sdc1
3 3 0 0 3 faulty removed
4 4 8 65 4 active sync /dev/sde1
5 5 8 81 5 active sync /dev/sdf1
6 6 0 0 6 faulty removed
7 7 8 113 7 active sync /dev/sdh1
8 8 0 0 8 faulty removed
/dev/sde1:
Magic : a92b4efc
Version : 00.90.00
UUID : 765a4a48:bb833995:cae6f280:3cca6ac9
Creation Time : Wed Dec 11 22:40:16 2002
Raid Level : raid5
Device Size : 75063616 (71.59 GiB 76.87 GB)
Raid Devices : 8
Total Devices : 7
Preferred Minor : 0
Update Time : Wed Dec 10 19:08:29 2003
State : clean, no-errors
Active Devices : 6
Working Devices : 7
Failed Devices : 0
Spare Devices : 1
Checksum : 65048799 - correct
Events : 0.27
Layout : left-asymmetric
Chunk Size : 64K
Number Major Minor RaidDevice State
this 4 8 65 4 active sync /dev/sde1
0 0 8 1 0 active sync /dev/sda1
1 1 8 17 1 active sync /dev/sdb1
2 2 8 33 2 active sync /dev/sdc1
3 3 0 0 3 faulty removed
4 4 8 65 4 active sync /dev/sde1
5 5 8 81 5 active sync /dev/sdf1
6 6 0 0 6 faulty removed
7 7 8 113 7 active sync /dev/sdh1
8 8 8 97 8 spare /dev/sdg1
/dev/sdf1:
Magic : a92b4efc
Version : 00.90.00
UUID : 765a4a48:bb833995:cae6f280:3cca6ac9
Creation Time : Wed Dec 11 22:40:16 2002
Raid Level : raid5
Device Size : 75063616 (71.59 GiB 76.87 GB)
Raid Devices : 8
Total Devices : 7
Preferred Minor : 0
Update Time : Wed Dec 10 19:08:29 2003
State : clean, no-errors
Active Devices : 6
Working Devices : 7
Failed Devices : 0
Spare Devices : 1
Checksum : 650487ab - correct
Events : 0.27
Layout : left-asymmetric
Chunk Size : 64K
Number Major Minor RaidDevice State
this 5 8 81 5 active sync /dev/sdf1
0 0 8 1 0 active sync /dev/sda1
1 1 8 17 1 active sync /dev/sdb1
2 2 8 33 2 active sync /dev/sdc1
3 3 0 0 3 faulty removed
4 4 8 65 4 active sync /dev/sde1
5 5 8 81 5 active sync /dev/sdf1
6 6 0 0 6 faulty removed
7 7 8 113 7 active sync /dev/sdh1
8 8 8 97 8 spare /dev/sdg1
/dev/sdg1:
Magic : a92b4efc
Version : 00.90.00
UUID : 765a4a48:bb833995:cae6f280:3cca6ac9
Creation Time : Wed Dec 11 22:40:16 2002
Raid Level : raid5
Device Size : 75063616 (71.59 GiB 76.87 GB)
Raid Devices : 8
Total Devices : 7
Preferred Minor : 0
Update Time : Wed Dec 10 19:08:29 2003
State : clean, no-errors
Active Devices : 6
Working Devices : 7
Failed Devices : 0
Spare Devices : 1
Checksum : 650487bb - correct
Events : 0.27
Layout : left-asymmetric
Chunk Size : 64K
Number Major Minor RaidDevice State
this 8 8 97 8 spare /dev/sdg1
0 0 8 1 0 active sync /dev/sda1
1 1 8 17 1 active sync /dev/sdb1
2 2 8 33 2 active sync /dev/sdc1
3 3 0 0 3 faulty removed
4 4 8 65 4 active sync /dev/sde1
5 5 8 81 5 active sync /dev/sdf1
6 6 0 0 6 faulty removed
7 7 8 113 7 active sync /dev/sdh1
8 8 8 97 8 spare /dev/sdg1
/dev/sdh1:
Magic : a92b4efc
Version : 00.90.00
UUID : 765a4a48:bb833995:cae6f280:3cca6ac9
Creation Time : Wed Dec 11 22:40:16 2002
Raid Level : raid5
Device Size : 75063616 (71.59 GiB 76.87 GB)
Raid Devices : 8
Total Devices : 7
Preferred Minor : 0
Update Time : Wed Dec 10 19:08:29 2003
State : clean, no-errors
Active Devices : 6
Working Devices : 7
Failed Devices : 0
Spare Devices : 1
Checksum : 650487cf - correct
Events : 0.27
Layout : left-asymmetric
Chunk Size : 64K
Number Major Minor RaidDevice State
this 7 8 113 7 active sync /dev/sdh1
0 0 8 1 0 active sync /dev/sda1
1 1 8 17 1 active sync /dev/sdb1
2 2 8 33 2 active sync /dev/sdc1
3 3 0 0 3 faulty removed
4 4 8 65 4 active sync /dev/sde1
5 5 8 81 5 active sync /dev/sdf1
6 6 0 0 6 faulty removed
7 7 8 113 7 active sync /dev/sdh1
8 8 8 97 8 spare /dev/sdg1
# END
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