Bug#336789: mdadm: Raid 10 device doesnt come up at boot
Dennis Haney
davh at kultunaut.dk
Tue Nov 1 14:16:42 UTC 2005
Package: mdadm
Version: 1.9.0-4
Severity: important
A raid 0 device on two raid 1 devices doesnt get started automatically for some reason.
In my case, its md4 below I have to manually start each reboot
md4 : active raid0 md1[0] md3[1]
60284160 blocks 64k chunks
md3 : active raid1 hde2[0] hdg2[1]
30142144 blocks [2/2] [UU]
md1 : active raid1 hda2[0] hdd2[1]
30142144 blocks [2/2] [UU]
$ mdadm -E /dev/md[13]
/dev/md1:
Magic : a92b4efc
Version : 00.90.00
UUID : 4dbefd3e:46937d39:387cd7ae:9196db86
Creation Time : Thu Aug 28 16:29:08 2003
Raid Level : raid0
Device Size : 30142080 (28.75 GiB 30.87 GB)
Raid Devices : 2
Total Devices : 2
Preferred Minor : 4
Update Time : Fri Dec 17 16:07:11 2004
State : active
Active Devices : 2
Working Devices : 2
Failed Devices : 0
Spare Devices : 0
Checksum : 8a6f73a8 - correct
Events : 0.18
Chunk Size : 64K
Number Major Minor RaidDevice State
this 0 9 1 0 active sync /dev/md1
0 0 9 1 0 active sync /dev/md1
1 1 9 3 1 active sync /dev/md3
/dev/md3:
Magic : a92b4efc
Version : 00.90.00
UUID : 4dbefd3e:46937d39:387cd7ae:9196db86
Creation Time : Thu Aug 28 16:29:08 2003
Raid Level : raid0
Device Size : 30142080 (28.75 GiB 30.87 GB)
Raid Devices : 2
Total Devices : 2
Preferred Minor : 4
Update Time : Fri Dec 17 16:07:11 2004
State : active
Active Devices : 2
Working Devices : 2
Failed Devices : 0
Spare Devices : 0
Checksum : 8a6f73ac - correct
Events : 0.18
Chunk Size : 64K
Number Major Minor RaidDevice State
this 1 9 3 1 active sync /dev/md3
0 0 9 1 0 active sync /dev/md1
1 1 9 3 1 active sync /dev/md3
-- System Information:
Debian Release: 3.1
APT prefers testing
APT policy: (99, 'testing')
Architecture: i386 (i686)
Kernel: Linux 2.6.11-1-686
Locale: LANG=da_DK, LC_CTYPE=da_DK (charmap=ISO-8859-1)
Versions of packages mdadm depends on:
ii debconf 1.4.30.13 Debian configuration management sy
ii libc6 2.3.2.ds1-22 GNU C Library: Shared libraries an
ii makedev 2.3.1-77 creates device files in /dev
-- debconf information:
* mdadm/autostart: true
* mdadm/mail_to: root at kultunaut.dk
* mdadm/warning:
* mdadm/start_daemon: true
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