Rebuilding my RAID for the 5th time now. Here's the complete shell
session, so in case I'm doing something wrong, PLEASE point it out!
Let's hope it works this time!
.... And here we go.....
trinitr...@saturn:/media$ sudo fdisk -l /dev/sde
Disk /dev/sde: 750.2 GB, 750156374016 bytes
255 heads, 63 sectors/track, 91201 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Disk /dev/sde doesn't contain a valid partition table
trinitr...@saturn:/media$ cat /proc/mdstat
Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4]
[raid10]
md_d0 : inactive sde1[3](S)
732571904 blocks
md0 : inactive sdb1[0](S) sdc1[1](S) sdd1[2](S)
2197715712 blocks
unused devices: <none>
trinitr...@saturn:/media$ sudo mdadm --stop /dev/md_d0
[sudo] password for trinitronx:
mdadm: stopped /dev/md_d0
trinitr...@saturn:/media$ sudo mdadm --examine /dev/md_d0
mdadm: cannot open /dev/md_d0: No such file or directory
trinitr...@saturn:/media$ sudo mdadm --examine /dev/sde
mdadm: No md superblock detected on /dev/sde.
trinitr...@saturn:/media$ sudo mdadm --examine /dev/sde1
/dev/sde1:
Magic : a92b4efc
Version : 00.90.00
UUID : 7a0e5ba8:669595fc:852484a6:e390a598 (local to host saturn)
Creation Time : Fri Jan 9 03:40:39 2009
Raid Level : raid5
Used Dev Size : 732571904 (698.64 GiB 750.15 GB)
Array Size : 2197715712 (2095.91 GiB 2250.46 GB)
Raid Devices : 4
Total Devices : 4
Preferred Minor : 0
Update Time : Sun May 16 22:13:13 2010
State : clean
Active Devices : 4
Working Devices : 4
Failed Devices : 0
Spare Devices : 0
Checksum : b38b3b34 - correct
Events : 122066
Layout : left-symmetric
Chunk Size : 64K
Number Major Minor RaidDevice State
this 3 8 65 3 active sync /dev/sde1
0 0 8 17 0 active sync /dev/sdb1
1 1 8 33 1 active sync /dev/sdc1
2 2 8 49 2 active sync /dev/sdd1
3 3 8 65 3 active sync /dev/sde1
trinitr...@saturn:/media$ sudo mdadm --zero-superblock /dev/sde1
trinitr...@saturn:/media$ sudo mdadm --examine /dev/sde1
mdadm: No md superblock detected on /dev/sde1.
trinitr...@saturn:/media$ sudo mdadm --zero-superblock /dev/sde
mdadm: Unrecognised md component device - /dev/sde
-------------------------------------------------------------------------------------------------
####### HERE'S WHERE I DELETED OLD PARTITION, ADDED NEW TABLE, AND REFORMATTED
IN GPARTED #######
-------------------------------------------------------------------------------------------------
trinitr...@saturn:/media$ sudo fdisk -l /dev/sde
Disk /dev/sde: 750.2 GB, 750156374016 bytes
255 heads, 63 sectors/track, 91201 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0008b84d
Device Boot Start End Blocks Id System
/dev/sde1 1 91201 732572001 fd Linux raid autodetect
trinitr...@saturn:/media$ sudo mdadm --detail /dev/md0
mdadm: md device /dev/md0 does not appear to be active.
trinitr...@saturn:/media$ sudo mdadm --examine /dev/sde1
mdadm: No md superblock detected on /dev/sde1.
trinitr...@saturn:/media$ sudo mdadm --examine /dev/sde
mdadm: No md superblock detected on /dev/sde.
trinitr...@saturn:/media$ sudo mdadm --examine /dev/sdb
mdadm: No md superblock detected on /dev/sdb.
trinitr...@saturn:/media$ sudo mdadm --examine /dev/sdb1
/dev/sdb1:
Magic : a92b4efc
Version : 00.90.00
UUID : 7a0e5ba8:669595fc:852484a6:e390a598 (local to host saturn)
Creation Time : Fri Jan 9 03:40:39 2009
Raid Level : raid5
Used Dev Size : 732571904 (698.64 GiB 750.15 GB)
Array Size : 2197715712 (2095.91 GiB 2250.46 GB)
Raid Devices : 4
Total Devices : 4
Preferred Minor : 0
Update Time : Sun May 16 22:13:13 2010
State : clean
Active Devices : 4
Working Devices : 4
Failed Devices : 0
Spare Devices : 0
Checksum : b38b3afe - correct
Events : 122066
Layout : left-symmetric
Chunk Size : 64K
Number Major Minor RaidDevice State
this 0 8 17 0 active sync /dev/sdb1
0 0 8 17 0 active sync /dev/sdb1
1 1 8 33 1 active sync /dev/sdc1
2 2 8 49 2 active sync /dev/sdd1
3 3 8 65 3 active sync /dev/sde1
trinitr...@saturn:/media$ sudo mdadm --examine /dev/sdc1
/dev/sdc1:
Magic : a92b4efc
Version : 00.90.00
UUID : 7a0e5ba8:669595fc:852484a6:e390a598 (local to host saturn)
Creation Time : Fri Jan 9 03:40:39 2009
Raid Level : raid5
Used Dev Size : 732571904 (698.64 GiB 750.15 GB)
Array Size : 2197715712 (2095.91 GiB 2250.46 GB)
Raid Devices : 4
Total Devices : 4
Preferred Minor : 0
Update Time : Sun May 16 22:13:13 2010
State : clean
Active Devices : 4
Working Devices : 4
Failed Devices : 0
Spare Devices : 0
Checksum : b38b3b10 - correct
Events : 122066
Layout : left-symmetric
Chunk Size : 64K
Number Major Minor RaidDevice State
this 1 8 33 1 active sync /dev/sdc1
0 0 8 17 0 active sync /dev/sdb1
1 1 8 33 1 active sync /dev/sdc1
2 2 8 49 2 active sync /dev/sdd1
3 3 8 65 3 active sync /dev/sde1
trinitr...@saturn:/media$ sudo mdadm --examine /dev/sdd1
/dev/sdd1:
Magic : a92b4efc
Version : 00.90.00
UUID : 7a0e5ba8:669595fc:852484a6:e390a598 (local to host saturn)
Creation Time : Fri Jan 9 03:40:39 2009
Raid Level : raid5
Used Dev Size : 732571904 (698.64 GiB 750.15 GB)
Array Size : 2197715712 (2095.91 GiB 2250.46 GB)
Raid Devices : 4
Total Devices : 4
Preferred Minor : 0
Update Time : Sun May 16 22:13:13 2010
State : clean
Active Devices : 4
Working Devices : 4
Failed Devices : 0
Spare Devices : 0
Checksum : b38b3b22 - correct
Events : 122066
Layout : left-symmetric
Chunk Size : 64K
Number Major Minor RaidDevice State
this 2 8 49 2 active sync /dev/sdd1
0 0 8 17 0 active sync /dev/sdb1
1 1 8 33 1 active sync /dev/sdc1
2 2 8 49 2 active sync /dev/sdd1
3 3 8 65 3 active sync /dev/sde1
trinitr...@saturn:/media$ sudo mdadm --examine /dev/sde1
mdadm: No md superblock detected on /dev/sde1.
trinitr...@saturn:/media$ cat /proc/mdstat
Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4]
[raid10]
md0 : inactive sdb1[0](S) sdc1[1](S) sdd1[2](S)
2197715712 blocks
unused devices: <none>
trinitr...@saturn:/media$ sudo mdadm --stop /dev/md0
mdadm: stopped /dev/md0
trinitr...@saturn:/media$ cat /etc/mdadm/mdadm.conf
# mdadm.conf
#
# Please refer to mdadm.conf(5) for information about this file.
#
# by default, scan all partitions (/proc/partitions) for MD superblocks.
# alternatively, specify devices to scan, using wildcards if desired.
#DEVICE partitions
# auto-create devices with Debian standard permissions
CREATE owner=root group=disk mode=0660 auto=yes
# automatically tag new arrays as belonging to the local system
HOMEHOST <system>
# instruct the monitoring daemon where to send mail alerts
MAILADDR "[email protected]"
MAILFROM "[email protected]"
# definitions of existing MD arrays
####### OLD line that kept failing
#ARRAY /dev/md0 level=raid5 num-devices=4
UUID=7a0e5ba8:669595fc:852484a6:e390a598
####### NEW line I added (let's hope it works)
ARRAY /dev/md0 level=raid5 num-devices=4
devices=/dev/sdb1,/dev/sdc1,/dev/sdd1,/dev/sde1
# This file was auto-generated on Sat, 17 Apr 2010 00:23:26 -0600
# by mkconf $Id$
trinitr...@saturn:/media$ cat /proc/mdstat
Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4]
[raid10]
unused devices: <none>
trinitr...@saturn:/media$ sudo mdadm --assemble --scan
mdadm: /dev/md0 has been started with 3 drives (out of 4).
trinitr...@saturn:/media$ cat /proc/mdstat
Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4]
[raid10]
md0 : active raid5 sdb1[0] sdd1[2] sdc1[1]
2197715712 blocks level 5, 64k chunk, algorithm 2 [4/3] [UUU_]
unused devices: <none>
trinitr...@saturn:/media$ sudo mdadm /dev/md0 --add /dev/sde1
mdadm: added /dev/sde1
trinitr...@saturn:/media$ cat /proc/mdstat
Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4]
[raid10]
md0 : active raid5 sde1[4] sdb1[0] sdd1[2] sdc1[1]
2197715712 blocks level 5, 64k chunk, algorithm 2 [4/3] [UUU_]
[>....................] recovery = 0.0% (44636/732571904)
finish=273.4min speed=44636K/sec
unused devices: <none>
trinitr...@saturn:/media$ sudo mdadm --detail /dev/md0
/dev/md0:
Version : 00.90
Creation Time : Fri Jan 9 03:40:39 2009
Raid Level : raid5
Array Size : 2197715712 (2095.91 GiB 2250.46 GB)
Used Dev Size : 732571904 (698.64 GiB 750.15 GB)
Raid Devices : 4
Total Devices : 4
Preferred Minor : 0
Persistence : Superblock is persistent
Update Time : Sun May 16 23:50:14 2010
State : clean, degraded, recovering
Active Devices : 3
Working Devices : 4
Failed Devices : 0
Spare Devices : 1
Layout : left-symmetric
Chunk Size : 64K
Rebuild Status : 0% complete
UUID : 7a0e5ba8:669595fc:852484a6:e390a598 (local to host saturn)
Events : 0.122067
Number Major Minor RaidDevice State
0 8 17 0 active sync /dev/sdb1
1 8 33 1 active sync /dev/sdc1
2 8 49 2 active sync /dev/sdd1
4 8 65 3 spare rebuilding /dev/sde1
-------------------------------------------------------------------------------------------------
######################## MEANWHILE, IN: /var/log/messages ...
###################################
-------------------------------------------------------------------------------------------------
May 16 23:33:51 saturn kernel: [ 4763.217643] md: bind<sde1>
May 16 23:34:18 saturn kernel: [ 4790.391128] SGI XFS with ACLs, security
attributes, realtime, large block/inode numbers, no debug enabled
May 16 23:34:18 saturn kernel: [ 4790.396650] SGI XFS Quota Management subsystem
May 16 23:34:18 saturn kernel: [ 4790.397410] XFS: SB read failed
May 16 23:34:45 saturn kernel: [ 4817.044323] __ratelimit: 6 callbacks
suppressed
May 16 23:38:12 saturn kernel: [ 5024.099816] md: md_d0 stopped.
May 16 23:38:12 saturn kernel: [ 5024.099859] md: unbind<sde1>
May 16 23:38:12 saturn kernel: [ 5024.126414] md: export_rdev(sde1)
May 16 23:40:59 saturn kernel: [ 5191.024406] XFS: SB read failed
May 16 23:46:00 saturn kernel: [ 5491.878478] md: md0 stopped.
May 16 23:46:00 saturn kernel: [ 5491.878512] md: unbind<sdb1>
May 16 23:46:00 saturn kernel: [ 5491.906072] md: export_rdev(sdb1)
May 16 23:46:00 saturn kernel: [ 5491.906248] md: unbind<sdc1>
May 16 23:46:00 saturn kernel: [ 5491.935829] md: export_rdev(sdc1)
May 16 23:46:00 saturn kernel: [ 5491.936097] md: unbind<sdd1>
May 16 23:46:00 saturn kernel: [ 5491.973645] md: export_rdev(sdd1)
May 16 23:49:42 saturn kernel: [ 5712.161450] md: md0 stopped.
May 16 23:49:42 saturn kernel: [ 5712.255438] md: bind<sdc1>
May 16 23:49:42 saturn kernel: [ 5712.255608] md: bind<sdd1>
May 16 23:49:42 saturn kernel: [ 5712.255763] md: bind<sdb1>
May 16 23:49:42 saturn kernel: [ 5712.332970] raid5: device sdb1 operational as
raid disk 0
May 16 23:49:42 saturn kernel: [ 5712.332974] raid5: device sdd1 operational as
raid disk 2
May 16 23:49:42 saturn kernel: [ 5712.332977] raid5: device sdc1 operational as
raid disk 1
May 16 23:49:42 saturn kernel: [ 5712.333463] raid5: allocated 4282kB for md0
May 16 23:49:42 saturn kernel: [ 5712.342566] 0: w=1 pa=0 pr=4 m=1 a=2 r=4
op1=0 op2=0
May 16 23:49:42 saturn kernel: [ 5712.344278] 2: w=2 pa=0 pr=4 m=1 a=2 r=4
op1=0 op2=0
May 16 23:49:42 saturn kernel: [ 5712.344281] 1: w=3 pa=0 pr=4 m=1 a=2 r=4
op1=0 op2=0
May 16 23:49:42 saturn kernel: [ 5712.344287] RAID5 conf printout:
May 16 23:49:42 saturn kernel: [ 5712.344288] --- rd:4 wd:3
May 16 23:49:42 saturn kernel: [ 5712.344291] disk 0, o:1, dev:sdb1
May 16 23:49:42 saturn kernel: [ 5712.344293] disk 1, o:1, dev:sdc1
May 16 23:49:42 saturn kernel: [ 5712.344295] disk 2, o:1, dev:sdd1
May 16 23:49:42 saturn kernel: [ 5712.344338] md0: detected capacity change
from 0 to 2250460889088
May 16 23:49:42 saturn kernel: [ 5712.345082] md0: unknown partition table
May 16 23:50:14 saturn kernel: [ 5743.992355] md: bind<sde1>
May 16 23:50:14 saturn kernel: [ 5744.021356] RAID5 conf printout:
May 16 23:50:14 saturn kernel: [ 5744.021366] --- rd:4 wd:3
May 16 23:50:14 saturn kernel: [ 5744.021373] disk 0, o:1, dev:sdb1
May 16 23:50:14 saturn kernel: [ 5744.021377] disk 1, o:1, dev:sdc1
May 16 23:50:14 saturn kernel: [ 5744.021381] disk 2, o:1, dev:sdd1
May 16 23:50:14 saturn kernel: [ 5744.021386] disk 3, o:1, dev:sde1
May 16 23:50:14 saturn kernel: [ 5744.023659] md: recovery of RAID array md0
May 16 23:50:14 saturn kernel: [ 5744.023668] md: minimum _guaranteed_ speed:
1000 KB/sec/disk.
May 16 23:50:14 saturn kernel: [ 5744.023674] md: using maximum available idle
IO bandwidth (but not more than 200000 KB/sec) for recovery.
May 16 23:50:14 saturn kernel: [ 5744.023687] md: using 128k window, over a
total of 732571904 blocks.
-------------------------------------------------------------------------------------------------
################################## CROSS YOUR FINGERS!!!
########################################
-------------------------------------------------------------------------------------------------
--
Mdadm array fails to assemble on boot.
https://bugs.launchpad.net/bugs/573477
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
