Sorry for this pretty log mail. there are several different questions
related to the same problem.
1. stuck rebuilding speed=0K/sec
2. disk added as spare instead of normal
3. kernel messages I don't know how to handle
The server of a school had problem this morning, 2 RAID1 arrays got out of
sync. The firsr one was fixed just w/ "mdadm /dev/md2 --add ..." the other
says rebuilding but really hangs:
md3 : active raid1 ide/host0/bus0/target0/lun0/part7[2] ide/host0/bus1/target0/lun0/part7[1]
74340672 blocks [2/1] [_U]
[>....................] recovery = 0.0% (192/74340672) finish=308306.9min speed=0K/sec
Following a similar thread some days ago I used hdparm:
srv-ornago:~# hdparm -Tt /dev/hdc
/dev/hdc:
Timing cached reads: 1000 MB in 2.00 seconds = 500.00 MB/sec
Timing buffered disk reads: 172 MB in 3.02 seconds = 56.95 MB/sec
srv-ornago:~# hdparm -Tt /dev/hda
/dev/hda:
Timing cached reads: 944 MB in 2.00 seconds = 472.00 MB/sec
That seems to me reasonable.
What is strange is the result of mdadm -D:
srv-ornago:~# mdadm -D /dev/md3
/dev/md3:
Version : 00.90.00
Creation Time : Wed Dec 8 12:28:15 2004
Raid Level : raid1
Array Size : 74340672 (70.90 GiB 76.12 GB)
Device Size : 74340672 (70.90 GiB 76.12 GB)
Raid Devices : 2
Total Devices : 2
Preferred Minor : 3
Persistence : Superblock is persistent
Update Time : Thu Jun 30 12:53:14 2005
State : dirty, degraded, recovering
Active Devices : 1
Working Devices : 2
Failed Devices : 0
Spare Devices : 1
Rebuild Status : 0% complete
UUID : 1ea38e0e:050ac659:7e84e367:2d256edd
Events : 0.171
Number Major Minor RaidDevice State
0 0 0 0 faulty removed
1 22 7 1 active sync /dev/ide/host0/bus1/target0/lun0/part7
2 3 7 2 spare rebuilding /dev/ide/host0/bus0/target0/lun0/part7
I added the array w/ "mdadm /dev/md3 --add /dev/ide/host0/bus0/target0/lun0/part7"
and it become "spare" what did I do wrong?
On /dev/md3 there is a reiserfs filesystem that I know is corrupted (I can't
mount it). I thought to first sync the array and then try to fix the
filesystem. Would it be generally better to do the opposite (so as to keep
the *bad* array as a "backup")?
TYA
sandro
*:-)
PS: now kern.log shows something that may help understanding...:
Jun 30 14:33:48 srv-ornago kernel: RAID1 conf printout:
Jun 30 14:33:48 srv-ornago kernel: --- wd:1 rd:2 nd:2
Jun 30 14:33:48 srv-ornago kernel: disk 0, s:0, o:0, n:0 rd:0 us:1 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: disk 1, s:0, o:1, n:1 rd:1 us:1 dev:ide/host0/bus1/target0/lun0/part7
Jun 30 14:33:48 srv-ornago kernel: disk 2, s:1, o:1, n:2 rd:2 us:1 dev:ide/host0/bus0/target0/lun0/part7
Jun 30 14:33:48 srv-ornago kernel: disk 3, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: disk 4, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: disk 5, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: disk 6, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: disk 7, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: disk 8, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: disk 9, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: disk 10, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: disk 11, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: disk 12, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: disk 13, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: disk 14, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: disk 15, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: disk 16, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: disk 17, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: disk 18, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: disk 19, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: disk 20, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: disk 21, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: disk 22, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: disk 23, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: disk 24, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: disk 25, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: disk 26, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: RAID1 conf printout:
Jun 30 14:33:48 srv-ornago kernel: --- wd:1 rd:2 nd:2
Jun 30 14:33:48 srv-ornago kernel: disk 0, s:0, o:0, n:0 rd:0 us:1 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: disk 1, s:0, o:1, n:1 rd:1 us:1 dev:ide/host0/bus1/target0/lun0/part7
Jun 30 14:33:48 srv-ornago kernel: disk 2, s:1, o:1, n:2 rd:2 us:1 dev:ide/host0/bus0/target0/lun0/part7
Jun 30 14:33:48 srv-ornago kernel: disk 3, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: disk 4, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: disk 5, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: disk 6, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: disk 7, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: disk 8, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: disk 9, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: disk 10, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: disk 11, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: disk 12, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: disk 13, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: disk 14, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: disk 15, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: disk 16, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: disk 17, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: disk 18, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: disk 19, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: disk 20, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: disk 21, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: disk 22, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: disk 23, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: disk 24, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: disk 25, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: disk 26, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00]
Jun 30 14:33:48 srv-ornago kernel: md: cannot remove active disk ide/host0/bus0/target0/lun0/part7 from md3 ...
Jun 30 14:40:30 srv-ornago kernel: reiserfs: found format "3.6" with standard journal
Jun 30 14:40:31 srv-ornago kernel: hda: dma_intr: status=0x51 { DriveReady SeekComplete Error }
Jun 30 14:40:31 srv-ornago kernel: hda: dma_intr: error=0x40 { UncorrectableError }, LBAsect=15584452, sector=4194304
Jun 30 14:40:31 srv-ornago kernel: end_request: I/O error, dev 03:07 (hda), sector 4194304
Jun 30 14:40:31 srv-ornago kernel: ide0(3,7):sh-2029: reiserfs read_bitmaps: bitmap block (#524288) reading failed
Jun 30 14:40:31 srv-ornago kernel: ide0(3,7):sh-2014: reiserfs_read_super: unable to read bitmap
Jun 30 14:40:33 srv-ornago kernel: hda: dma_intr: status=0x51 { DriveReady SeekComplete Error }
Jun 30 14:40:33 srv-ornago kernel: hda: dma_intr: error=0x40 { UncorrectableError }, LBAsect=16108740, sector=4718592
Jun 30 14:40:33 srv-ornago kernel: end_request: I/O error, dev 03:07 (hda), sector 4718592
--
Sandro Dentella *:-)
e-mail: sandro@xxxxxxxx
http://www.tksql.org TkSQL Home page - My GPL work
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