Hi All,
Recently I lost a disk in my raid5 SW array. It seems that it took a
second disk with it. The other disk appears to still be funtional (from
an fdisk perspective...). I am trying to get the array to work in
degraded mode via failed-disk in raidtab, but am always getting the
following error:
md: could not bd_claim hde.
md: autostart failed!
When I try to raidstart the array. Is it the case tha I had been running
in degraded mode before the disk failure, and then lost the other disk?
if so, how can I tell.
I have been messing about with mkraid -R and I have tried to
add /dev/hdf (a new disk) back to the array. However, I am fairly
confident that I have not kicked off the recovery process, so I am
imagining that once I get the superblocks in order, I should be able to
recover to the new disk?
My system and raid config are:
Kernel 2.6.13.1
Slack 10.2
RAID 5 which originally looked like:
/dev/hde
/dev/hdg
/dev/hdi
/dev/hdk
but when I moved the disks to another box with fewer IDE controllers
/dev/hde
/dev/hdf
/dev/hdg
/dev/hdh
How should I approach this?
Below is the output of mdadm --examine /dev/hd*
Thanks in advance,
Nate
/dev/hde:
Magic : a92b4efc
Version : 00.90.00
UUID : 38081921:59a998f9:64c1a001:ec534ef2
Creation Time : Fri Aug 22 16:34:37 2003
Raid Level : raid5
Device Size : 78150656 (74.53 GiB 80.03 GB)
Raid Devices : 4
Total Devices : 4
Preferred Minor : 0
Update Time : Wed Apr 12 02:26:37 2006
State : active
Active Devices : 3
Working Devices : 3
Failed Devices : 1
Spare Devices : 0
Checksum : 165c1b4c - correct
Events : 0.37523832
Layout : left-symmetric
Chunk Size : 128K
Number Major Minor RaidDevice State
this 1 33 0 1 active sync /dev/hde
0 0 0 0 0 removed
1 1 33 0 1 active sync /dev/hde
2 2 34 64 2 active sync /dev/hdh
3 3 34 0 3 active sync /dev/hdg
/dev/hdf:
Magic : a92b4efc
Version : 00.90.00
UUID : 38081921:59a998f9:64c1a001:ec534ef2
Creation Time : Fri Aug 22 16:34:37 2003
Raid Level : raid5
Device Size : 78150656 (74.53 GiB 80.03 GB)
Raid Devices : 4
Total Devices : 4
Preferred Minor : 0
Update Time : Wed Apr 12 02:26:37 2006
State : active
Active Devices : 3
Working Devices : 3
Failed Devices : 1
Spare Devices : 0
Checksum : 165c1bc5 - correct
Events : 0.37523832
Layout : left-symmetric
Chunk Size : 128K
Number Major Minor RaidDevice State
this 3 33 64 -1 sync /dev/hdf
0 0 0 0 0 removed
1 1 33 0 1 active sync /dev/hde
2 2 34 64 2 active sync /dev/hdh
3 3 33 64 -1 sync /dev/hdf
/dev/hdg:
Magic : a92b4efc
Version : 00.90.00
UUID : 38081921:59a998f9:64c1a001:ec534ef2
Creation Time : Fri Aug 22 16:34:37 2003
Raid Level : raid5
Device Size : 78150656 (74.53 GiB 80.03 GB)
Raid Devices : 4
Total Devices : 4
Preferred Minor : 0
Update Time : Wed Apr 12 06:12:58 2006
State : clean
Active Devices : 2
Working Devices : 2
Failed Devices : 3
Spare Devices : 0
Checksum : 1898e1fd - correct
Events : 0.37523844
Layout : left-symmetric
Chunk Size : 128K
Number Major Minor RaidDevice State
this 3 34 0 3 active sync /dev/hdg
0 0 0 0 0 removed
1 1 0 0 1 faulty removed
2 2 34 64 2 active sync /dev/hdh
3 3 34 0 3 active sync /dev/hdg
/dev/hdh:
Magic : a92b4efc
Version : 00.90.00
UUID : 38081921:59a998f9:64c1a001:ec534ef2
Creation Time : Fri Aug 22 16:34:37 2003
Raid Level : raid5
Device Size : 78150656 (74.53 GiB 80.03 GB)
Raid Devices : 4
Total Devices : 4
Preferred Minor : 0
Update Time : Wed Apr 12 06:12:58 2006
State : clean
Active Devices : 2
Working Devices : 2
Failed Devices : 3
Spare Devices : 0
Checksum : 1898e23b - correct
Events : 0.37523844
Layout : left-symmetric
Chunk Size : 128K
Number Major Minor RaidDevice State
this 2 34 64 2 active sync /dev/hdh
0 0 0 0 0 removed
1 1 0 0 1 faulty removed
2 2 34 64 2 active sync /dev/hdh
3 3 34 0 3 active sync /dev/hdg
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