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SubjectRe: 2.6.17-mm4
On 29/06/2006 8:36 p.m., Andrew Morton wrote:
> ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.17/2.6.17-mm4/

> - The RAID patches have been dropped due to testing failures in -mm3.

Things are still not perfect on the raid front, but better than -mm3. The raid
oopsing on boot is gone, but my RAID-1 arrays seem to be coming up degraded for
no obvious reason. The system was shut down fine before booting -mm3 and comes
up OK after reverting to the older -mm releases (eg -mm1) and the supposedly
faulty partitions readded back into the array.

[root@tornado ~]# cat /proc/mdstat
Personalities : [raid1]
md1 : active raid1 sdc3[2](F) sda3[0]
4891712 blocks [2/1] [U_]
bitmap: 13/150 pages [52KB], 16KB chunk

md2 : active raid1 sdc5[2](F) sda5[0]
4891648 blocks [2/1] [U_]
bitmap: 36/150 pages [144KB], 16KB chunk

md3 : active raid1 sdc6[2](F) sda6[0]
104320 blocks [2/1] [U_]
bitmap: 1/13 pages [4KB], 4KB chunk

md4 : active raid1 sdc7[1] sda7[2](F)
497856 blocks [2/1] [_U]
bitmap: 11/61 pages [44KB], 4KB chunk

md6 : active raid1 sdc10[1] sda10[0]
20008832 blocks [2/2] [UU]

md5 : active raid1 sdc11[2](F) sda11[0]
20008832 blocks [2/1] [U_]

md0 : active raid1 sdc2[2](F) sda2[0]
24410688 blocks [2/1] [U_]
bitmap: 9/187 pages [36KB], 64KB chunk

unused devices: <none>
[root@tornado ~]#

From dmesg:

md: Autodetecting RAID arrays.
md: autorun ...
md: considering sdc11 ...
md: adding sdc11 ...
md: sdc10 has different UUID to sdc11
md: sdc7 has different UUID to sdc11
md: sdc6 has different UUID to sdc11
md: sdc5 has different UUID to sdc11
md: sdc3 has different UUID to sdc11
md: sdc2 has different UUID to sdc11
md: adding sda11 ...
md: sda10 has different UUID to sdc11
md: sda7 has different UUID to sdc11
md: sda6 has different UUID to sdc11
md: sda5 has different UUID to sdc11
md: sda3 has different UUID to sdc11
md: sda2 has different UUID to sdc11
md: created md5
md: bind<sda11>
md: bind<sdc11>
md: running: <sdc11><sda11>
raid1: raid set md5 active with 2 out of 2 mirrors
md: considering sdc10 ...
md: adding sdc10 ...
md: sdc7 has different UUID to sdc10
md: sdc6 has different UUID to sdc10
md: sdc5 has different UUID to sdc10
md: sdc3 has different UUID to sdc10
md: sdc2 has different UUID to sdc10
md: adding sda10 ...
md: sda7 has different UUID to sdc10
md: sda6 has different UUID to sdc10
md: sda5 has different UUID to sdc10
md: sda3 has different UUID to sdc10
md: sda2 has different UUID to sdc10
md: created md6
md: bind<sda10>
md: bind<sdc10>
md: running: <sdc10><sda10>
raid1: raid set md6 active with 2 out of 2 mirrors
md: considering sdc7 ...
md: adding sdc7 ...
md: sdc6 has different UUID to sdc7
md: sdc5 has different UUID to sdc7
md: sdc3 has different UUID to sdc7
md: sdc2 has different UUID to sdc7
md: adding sda7 ...
md: sda6 has different UUID to sdc7
md: sda5 has different UUID to sdc7
md: sda3 has different UUID to sdc7
md: sda2 has different UUID to sdc7
md: created md4
md: bind<sda7>
md: bind<sdc7>
md: running: <sdc7><sda7>
raid1: raid set md4 active with 2 out of 2 mirrors
md4: bitmap initialized from disk: read 4/4 pages, set 7 bits, status: 0
created bitmap (61 pages) for device md4
raid1: Disk failure on sda7, disabling device.
Operation continuing on 1 devices
md: considering sdc6 ...
RAID1 conf printout:
--- wd:1 rd:2
disk 0, wo:1, o:0, dev:sda7
disk 1, wo:0, o:1, dev:sdc7
md: adding sdc6 ...
md: sdc5 has different UUID to sdc6
md: sdc3 has different UUID to sdc6
md: sdc2 has different UUID to sdc6
md: adding sda6 ...
md: sda5 has different UUID to sdc6
RAID1 conf printout:
--- wd:1 rd:2
disk 1, wo:0, o:1, dev:sdc7
md: sda3 has different UUID to sdc6
md: sda2 has different UUID to sdc6
md: created md3
md: bind<sda6>
md: bind<sdc6>
md: running: <sdc6><sda6>
raid1: raid set md3 active with 2 out of 2 mirrors
md3: bitmap initialized from disk: read 1/1 pages, set 2 bits, status: 0
created bitmap (13 pages) for device md3
raid1: Disk failure on sdc6, disabling device.
Operation continuing on 1 devices
md: considering sdc5 ...
RAID1 conf printout:
--- wd:1 rd:2
disk 0, wo:0, o:1, dev:sda6
disk 1, wo:1, o:0, dev:sdc6
md: adding sdc5 ...
md: sdc3 has different UUID to sdc5
md: sdc2 has different UUID to sdc5
md: adding sda5 ...
md: sda3 has different UUID to sdc5
md: sda2 has different UUID to sdc5
md: created md2
md: bind<sda5>
md: bind<sdc5>
RAID1 conf printout:
--- wd:1 rd:2
disk 0, wo:0, o:1, dev:sda6
md: running: <sdc5><sda5>
raid1: raid set md2 active with 2 out of 2 mirrors
md2: bitmap initialized from disk: read 10/10 pages, set 80 bits, status: 0
created bitmap (150 pages) for device md2
raid1: Disk failure on sdc5, disabling device.
Operation continuing on 1 devices
md: considering sdc3 ...
RAID1 conf printout:
--- wd:1 rd:2
disk 0, wo:0, o:1, dev:sda5
disk 1, wo:1, o:0, dev:sdc5
md: adding sdc3 ...
md: sdc2 has different UUID to sdc3
RAID1 conf printout:
--- wd:1 rd:2
disk 0, wo:0, o:1, dev:sda5
md: adding sda3 ...
md: sda2 has different UUID to sdc3
md: created md1
md: bind<sda3>
md: bind<sdc3>
md: running: <sdc3><sda3>
raid1: raid set md1 active with 2 out of 2 mirrors
md1: bitmap initialized from disk: read 10/10 pages, set 55 bits, status: 0
created bitmap (150 pages) for device md1
raid1: Disk failure on sdc3, disabling device.
Operation continuing on 1 devices
md: considering sdc2 ...
RAID1 conf printout:
--- wd:1 rd:2
disk 0, wo:0, o:1, dev:sda3
disk 1, wo:1, o:0, dev:sdc3
md: adding sdc2 ...
md: adding sda2 ...
RAID1 conf printout:
--- wd:1 rd:2
disk 0, wo:0, o:1, dev:sda3
md: created md0
md: bind<sda2>
md: bind<sdc2>
md: running: <sdc2><sda2>
raid1: raid set md0 active with 2 out of 2 mirrors
md0: bitmap initialized from disk: read 12/12 pages, set 37 bits, status: 0
created bitmap (187 pages) for device md0
raid1: Disk failure on sdc2, disabling device.
Operation continuing on 1 devices
md: ... autorun DONE.
RAID1 conf printout:
--- wd:1 rd:2
disk 0, wo:0, o:1, dev:sda2
disk 1, wo:1, o:0, dev:sdc2
RAID1 conf printout:
--- wd:1 rd:2
disk 0, wo:0, o:1, dev:sda2
kjournald starting. Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.


Here's one of the arrays:

[root@tornado ~]# mdadm --examine /dev/sda5
/dev/sda5:
Magic : a92b4efc
Version : 00.90.01
UUID : d18ac80d:63c7bd9d:8cbb8566:6a378891
Creation Time : Sun Sep 4 18:25:28 2005
Raid Level : raid1
Device Size : 4891648 (4.67 GiB 5.01 GB)
Array Size : 4891648 (4.67 GiB 5.01 GB)
Raid Devices : 2
Total Devices : 2
Preferred Minor : 2

Update Time : Thu Jun 29 23:34:42 2006
State : clean
Internal Bitmap : present
Active Devices : 1
Working Devices : 1
Failed Devices : 1
Spare Devices : 0
Checksum : 5f63b753 - correct
Events : 0.16052320


Number Major Minor RaidDevice State
this 0 8 5 0 active sync /dev/sda5

0 0 8 5 0 active sync /dev/sda5
1 1 0 0 1 faulty removed
[root@tornado ~]# mdadm --examine /dev/sdc5
/dev/sdc5:
Magic : a92b4efc
Version : 00.90.01
UUID : d18ac80d:63c7bd9d:8cbb8566:6a378891
Creation Time : Sun Sep 4 18:25:28 2005
Raid Level : raid1
Device Size : 4891648 (4.67 GiB 5.01 GB)
Array Size : 4891648 (4.67 GiB 5.01 GB)
Raid Devices : 2
Total Devices : 2
Preferred Minor : 2

Update Time : Thu Jun 29 23:08:32 2006
State : clean
Internal Bitmap : present
Active Devices : 2
Working Devices : 2
Failed Devices : 0
Spare Devices : 0
Checksum : 5f63b148 - correct
Events : 0.16052318


Number Major Minor RaidDevice State
this 1 8 37 1 active sync /dev/sdc5

0 0 8 5 0 active sync /dev/sda5
1 1 8 37 1 active sync /dev/sdc5
[root@tornado ~]#

Reuben

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