mdadm raid1 not working as before kernel upgrade.
Hi All,
Can someone please point me in the right direction with this? I've
looked on
google etc but can not find a solution to it, I will really appreciate
it if I can get
this working as before I did a kernel upgrade...
Before kernel:
Partitioning scheme: RAID1
mdadm -Q /dev/md0
/dev/md0: 125.38MiB raid1 2 devices, 0 spares.
active sync /dev/.static/dev/sda1
active sync /dev/.static/dev/sdb1
mdadm -Q /dev/md1
/dev/md1: 1.91GiB raid1 2 devices, 0 spares.
active sync /dev/.static/dev/sda2
active sync /dev/.static/dev/sdb2
mdadm -Q /dev/md2
/dev/md2: 184.28GiB raid1 2 devices, 0 spares.
active sync /dev/.static/dev/sda3
active sync /dev/.static/dev/sdb3
/boot ext2 /dev/md0
Swap /dev/md1
/ ext3 /dev/md2
After:
mdadm -E /dev/md0
mdadm: No super block found on /dev/md0 (Expected magic a92b4efc, got
00000000)
mdadm -E /dev/md1
mdadm: No super block found on /dev/md1 (Expected magic a92b4efc, got
00000000)
mdadm -E /dev/md2
mdadm: No super block found on /dev/md2 (Expected magic a92b4efc, got
d3fdfe1d)
mdadm -Q /dev/md0
/dev/md0: 125.38MiB raid1 2 devices, 0 spares. Use mdadm --detail for
more detail.
/dev/md0: No md super block found, not an md component.
mdadm -Q /dev/md1
/dev/md1: 1.91GiB raid1 2 devices, 0 spares. Use mdadm --detail for
more detail.
/dev/md1: No md super block found, not an md component.
mdadm -Q /dev/md2
/dev/md2: 184.28GiB raid1 2 devices, 0 spares. Use mdadm --detail for
more detail.
/dev/md2: No md super block found, not an md component.
It looks like the RAID is still working? but why does mdadm -Q report
"No md super block
found, not an md component"? At boot time I get a message saying that
it is not a valid
mdadm --detail /dev/md0
/dev/md0:
Version : 00.90.01
Creation Time : Tue Jul 12 18:08:31 2005
Raid Level : raid1
Array Size : 128384 (125.38 MiB 131.47 MB)
Device Size : 128384 (125.38 MiB 131.47 MB)
Raid Devices : 2
Total Devices : 2
Preferred Minor : 0
Persistence : Superblock is persistent
Update Time : Wed Dec 21 14:46:09 2005
State : clean
Active Devices : 2
Working Devices : 2
Failed Devices : 0
Spare Devices : 0
UUID : 6c66612d:5dc6ac9a:f8397b8f:353faf1d
Events : 0.2159
Number Major Minor RaidDevice State
0 8 1 0 active sync
/dev/.static/dev/sda1
1 8 17 1 active sync
/dev/.static/dev/sdb1
mdadm --detail /dev/md1
/dev/md1:
Version : 00.90.01
Creation Time : Tue Jul 12 18:08:43 2005
Raid Level : raid1
Array Size : 2000000 (1.91 GiB 2.05 GB)
Device Size : 2000000 (1.91 GiB 2.05 GB)
Raid Devices : 2
Total Devices : 2
Preferred Minor : 1
Persistence : Superblock is persistent
Update Time : Tue Jul 12 18:32:41 2005
State : clean
Active Devices : 2
Working Devices : 2
Failed Devices : 0
Spare Devices : 0
UUID : c3ad6470:16562435:0bbfb7a0:78b7e039
Events : 0.3
Number Major Minor RaidDevice State
0 8 2 0 active sync
/dev/.static/dev/sda2
1 8 18 1 active sync
/dev/.static/dev/sdb2
mdadm --detail /dev/md2
/dev/md2:
Version : 00.90.01
Creation Time : Tue Jul 12 18:08:51 2005
Raid Level : raid1
Array Size : 193229696 (184.28 GiB 197.87 GB)
Device Size : 193229696 (184.28 GiB 197.87 GB)
Raid Devices : 2
Total Devices : 2
Preferred Minor : 2
Persistence : Superblock is persistent
Update Time : Wed Dec 21 15:34:44 2005
State : clean
Active Devices : 2
Working Devices : 2
Failed Devices : 0
Spare Devices : 0
UUID : ed65af19:ff18db27:b4070dfc:d4db19a0
Events : 0.7791265
Number Major Minor RaidDevice State
0 8 3 0 active sync
/dev/.static/dev/sda3
1 8 19 1 active sync
/dev/.static/dev/sdb3
sfdisk -l
Disk /dev/sda: 24321 cylinders, 255 heads, 63 sectors/track
Units = cylinders of 8225280 bytes, blocks of 1024 bytes, counting from
0
Device Boot Start End #cyls #blocks Id System
/dev/sda1 * 0+ 15 16- 128488+ 83 Linux
/dev/sda2 16 264 249 2000092+ 82 Linux swap /
Solaris
/dev/sda3 265 24320 24056 193229820 83 Linux
/dev/sda4 0 - 0 0 0 Empty
Disk /dev/sdb: 24321 cylinders, 255 heads, 63 sectors/track
Units = cylinders of 8225280 bytes, blocks of 1024 bytes, counting from
0
Device Boot Start End #cyls #blocks Id System
/dev/sdb1 0+ 15 16- 128488+ fd Linux raid
autodetect
/dev/sdb2 16 264 249 2000092+ fd Linux raid
autodetect
/dev/sdb3 265 24320 24056 193229820 fd Linux raid
autodetect
/dev/sdb4 0 - 0 0 0 Empty
Disk /dev/md2: 48307424 cylinders, 2 heads, 4 sectors/track
sfdisk: ERROR: sector 0 does not have an msdos signature
/dev/md2: unrecognized partition table type
No partitions found
Disk /dev/md0: 32096 cylinders, 2 heads, 4 sectors/track
sfdisk: ERROR: sector 0 does not have an msdos signature
/dev/md0: unrecognized partition table type
No partitions found
Disk /dev/md1: 500000 cylinders, 2 heads, 4 sectors/track
sfdisk: ERROR: sector 0 does not have an msdos signature
/dev/md1: unrecognized partition table type
No partitions found
Thank you
Jonathan
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