On Sat, Aug 27, 2011 at 1:58 PM, CoolCold <coolthecold@xxxxxxxxx> wrote:
> Hello!
> I have raid1 array with bitmap (md3), one disk has died, been replaced
> and array resynced:
>
> Aug 25 15:38:03 gamma2 kernel: [ 5.986791] md: md3 stopped.
> Aug 25 15:38:03 gamma2 kernel: [ 6.043306] raid1: raid set md3
> active with 1 out of 2 mirrors
> Aug 25 15:38:03 gamma2 kernel: [ 6.044378] md3: bitmap initialized
> from disk: read 2/2 pages, set 357 bits
> Aug 25 15:38:03 gamma2 kernel: [ 6.044442] created bitmap (22
> pages) for device md3
> Aug 25 15:38:03 gamma2 kernel: [ 6.070492] md3: detected capacity
> change from 0 to 1478197903360
> Aug 25 15:38:03 gamma2 kernel: [ 6.070862] md3: unknown partition table
> Aug 26 19:33:33 gamma2 kernel: [100325.814179] md: md3: recovery done.
>
> Now, /proc/mdstats still shows "dirty" bitmap, 16 of 22 pages:
>
> root@gamma2:~# cat /proc/mdstat
> Personalities : [raid0] [raid1] [raid6] [raid5] [raid4] [raid10]
> md3 : active raid1 sdc3[1] sdb3[0]
> 1443552640 blocks [2/2] [UU]
> bitmap: 16/22 pages [64KB], 32768KB chunk
>
> root@gamma2:~# mdadm -D /dev/md3
> /dev/md3:
> Version : 00.90
> Creation Time : Wed Oct 13 03:13:52 2010
> Raid Level : raid1
> Array Size : 1443552640 (1376.68 GiB 1478.20 GB)
> Used Dev Size : 1443552640 (1376.68 GiB 1478.20 GB)
> Raid Devices : 2
> Total Devices : 2
> Preferred Minor : 3
> Persistence : Superblock is persistent
>
> Intent Bitmap : Internal
>
> Update Time : Sat Aug 27 13:53:57 2011
> State : active
> Active Devices : 2
> Working Devices : 2
> Failed Devices : 0
> Spare Devices : 0
>
> UUID : f5a9c1da:83dd4c40:d363f6aa:3cbcebe5
> Events : 0.1381014
>
> Number Major Minor RaidDevice State
> 0 8 19 0 active sync /dev/sdb3
> 1 8 35 1 active sync /dev/sdc3
>
>
>
> That is strange as I can understand.
>
> distrib & mdadm info:
> Debian Lenny with openvz kernel from lenny-backports.
>
> root@gamma2:~# cat /proc/version
> Linux version 2.6.32-bpo.5-openvz-amd64 (Debian 2.6.32-35~bpo50+1)
> (norbert@xxxxxxxxxxxxx) (gcc version 4.3.2 (Debian 4.3.2-1.1) ) #1 SMP
> Wed Jul 20 11:23:01 UTC 2011
> root@gamma2:~# mdadm --version
> mdadm - v2.6.7.2 - 14th November 2008
>
More details now:
Array still has 16/22 dirty pages:
root@gamma2:~# date;cat /proc/mdstat |head -n 5
Wed Aug 31 13:04:26 MSD 2011
Personalities : [raid0] [raid1] [raid6] [raid5] [raid4] [raid10]
md3 : active raid1 sdc3[1] sdb3[0]
1443552640 blocks [2/2] [UU]
bitmap: 16/22 pages [64KB], 32768KB chunk
bitmap info:
root@gamma2:~# mdadm --examine-bitmap /dev/sdb3
Filename : /dev/sdb3
Magic : 6d746962
Version : 4
UUID : f5a9c1da:83dd4c40:d363f6aa:3cbcebe5
Events : 1381014
Events Cleared : 1381014
State : OK
Chunksize : 32 MB
Daemon : 5s flush period
Write Mode : Normal
Sync Size : 1443552640 (1376.68 GiB 1478.20 GB)
Bitmap : 44054 bits (chunks), 189 dirty (0.4%)
root@gamma2:~# mdadm --examine-bitmap /dev/sdc3
Filename : /dev/sdc3
Magic : 6d746962
Version : 4
UUID : f5a9c1da:83dd4c40:d363f6aa:3cbcebe5
Events : 1381014
Events Cleared : 1381014
State : OK
Chunksize : 32 MB
Daemon : 5s flush period
Write Mode : Normal
Sync Size : 1443552640 (1376.68 GiB 1478.20 GB)
Bitmap : 44054 bits (chunks), 189 dirty (0.4%)
>
> --
> Best regards,
> [COOLCOLD-RIPN]
>
--
Best regards,
[COOLCOLD-RIPN]
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