Hi mdadm-ers,
I'm pretty sure I have a complete /etc/mdadm.conf and I've regenerated
the initramfs, but the symlinks from /dev/md/array0p1 to /dev/md_123p1
are not being created, neither on boot or with a manual assembly. My
read of the mdadm man page suggests that mdadm should create these
symlinks when the array name ends in a number, the array device is
specified in /dev/md/, and the CREATE auto line exists in
/etc/mdadm.conf. I've got config for other services that specifies these
array partitions as targets and when they are not created, the services
fail to start (naturally :-) I chose these names as they should be
stationary targets, ie persistent names across reboots, whereas the
/dev/md_d127 names seem to be dynamically assigned, based on order of
raid array discovery and position in the mdadm.conf file.
The partitioned arrays are started ok and the partitions detected, I
just can't get mdadm(/udev ??) to create the appropriate symlinks. Does
anyone know how to get these to be created for a partitioned array?
I have:
/dev:
brw-rw---- 1 root disk 254, 8128 2011-05-30 11:39 /dev/md_d127
brw-rw---- 1 root disk 254, 8129 2011-05-30 11:39 /dev/md_d127p1
/dev/md:
total 0
lrwxrwxrwx 1 root root 10 2011-05-30 11:39 h001r003 -> ../md_d127
I need:
/dev/md:
lrwxrwxrwx 1 root root 10 2011-05-30 11:39 h001r003p1 -> ../md_d127p1
Thanks kindly,
Josh
wynyard:~ # cat /etc/SuSE-release
SUSE Linux Enterprise Server 11 (x86_64)
VERSION = 11
PATCHLEVEL = 1
wynyard:~ # mdadm -V
mdadm - v3.0.3 - 22nd October 2009
wynyard:~ # uname -a
Linux wynyard 2.6.32.36-0.5-xen #1 SMP 2011-04-14 10:12:31 +0200 x86_64
x86_64 x86_64 GNU/Linux
wynyard:~ # cat /proc/mdstat
Personalities : [raid1] [raid0] [raid10] [raid6] [raid5] [raid4] [linear]
md_d127 : active (auto-read-only) raid10 sdd[0] sdg[3] sdf[2] sde[1]
3907027968 blocks super 1.2 256K chunks 2 far-copies [4/4] [UUUU]
md_d125 : active (auto-read-only) raid1 sdj[0] sdk[1]
293036048 blocks super 1.2 [2/2] [UU]
md_d126 : active (auto-read-only) raid1 sdh[0] sdi[1]
1953514448 blocks super 1.2 [2/2] [UU]
md0 : active raid1 sda1[0] sdb1[1]
506004 blocks super 1.0 [2/2] [UU]
bitmap: 0/8 pages [0KB], 32KB chunk
md1 : active raid1 sda2[0] sdb2[1]
160328628 blocks super 1.0 [2/2] [UU]
bitmap: 2/153 pages [8KB], 512KB chunk
unused devices: <none>
wynyard:~ # cat /etc/mdadm.conf
DEVICE containers partitions
CREATE auto=part8
ARRAY /dev/md0 UUID=62862472:2a1986f3:3aaf03f8:98f91297
ARRAY /dev/md1 UUID=b74f4f13:637b1874:9681b4f8:789d572c
ARRAY /dev/md/h001r003 auto=part8 metadata=1.02 name=wynyard:h001r003
UUID=9ca01512:203443f7:a2173168:5f44986e
ARRAY /dev/md/h001r004 auto=part8 metadata=1.02 name=wynyard:h001r004
UUID=5b4f3aa8:f8de5a24:7933c52c:18096707
ARRAY /dev/md/h001r005 auto=part8 metadata=1.02 name=wynyard:h001r005
UUID=b25a5f84:57861501:efe9943a:a804fc03
wynyard:~ # ls -l /dev/md*
brw-rw---- 1 root disk 9, 0 2011-05-11 01:28 /dev/md0
brw-rw---- 1 root disk 9, 1 2011-05-11 01:28 /dev/md1
brw-r----- 1 root disk 9, 10 2011-05-11 01:28 /dev/md10
brw-r----- 1 root disk 9, 11 2011-05-11 01:28 /dev/md11
brw-r----- 1 root disk 9, 12 2011-05-11 01:28 /dev/md12
brw-r----- 1 root disk 9, 13 2011-05-11 01:28 /dev/md13
brw-r----- 1 root disk 9, 14 2011-05-11 01:28 /dev/md14
brw-r----- 1 root disk 9, 15 2011-05-11 01:28 /dev/md15
brw-r----- 1 root disk 9, 16 2011-05-11 01:28 /dev/md16
brw-r----- 1 root disk 9, 17 2011-05-11 01:28 /dev/md17
brw-r----- 1 root disk 9, 18 2011-05-11 01:28 /dev/md18
brw-r----- 1 root disk 9, 19 2011-05-11 01:28 /dev/md19
brw-r----- 1 root disk 9, 2 2011-05-11 01:28 /dev/md2
brw-r----- 1 root disk 9, 20 2011-05-11 01:28 /dev/md20
brw-r----- 1 root disk 9, 21 2011-05-11 01:28 /dev/md21
brw-r----- 1 root disk 9, 22 2011-05-11 01:28 /dev/md22
brw-r----- 1 root disk 9, 23 2011-05-11 01:28 /dev/md23
brw-r----- 1 root disk 9, 24 2011-05-11 01:28 /dev/md24
brw-r----- 1 root disk 9, 25 2011-05-11 01:28 /dev/md25
brw-r----- 1 root disk 9, 26 2011-05-11 01:28 /dev/md26
brw-r----- 1 root disk 9, 27 2011-05-11 01:28 /dev/md27
brw-r----- 1 root disk 9, 28 2011-05-11 01:28 /dev/md28
brw-r----- 1 root disk 9, 29 2011-05-11 01:28 /dev/md29
brw-r----- 1 root disk 9, 3 2011-05-11 01:28 /dev/md3
brw-r----- 1 root disk 9, 30 2011-05-11 01:28 /dev/md30
brw-r----- 1 root disk 9, 31 2011-05-11 01:28 /dev/md31
brw-r----- 1 root disk 9, 4 2011-05-11 01:28 /dev/md4
brw-r----- 1 root disk 9, 5 2011-05-11 01:28 /dev/md5
brw-r----- 1 root disk 9, 6 2011-05-11 01:28 /dev/md6
brw-r----- 1 root disk 9, 7 2011-05-11 01:28 /dev/md7
brw-r----- 1 root disk 9, 8 2011-05-11 01:28 /dev/md8
brw-r----- 1 root disk 9, 9 2011-05-11 01:28 /dev/md9
brw-rw---- 1 root disk 254, 8000 2011-05-30 11:36 /dev/md_d125
brw-rw---- 1 root disk 254, 8001 2011-05-30 11:36 /dev/md_d125p1
brw-rw---- 1 root disk 254, 8002 2011-05-30 11:36 /dev/md_d125p2
brw-rw---- 1 root disk 254, 8064 2011-05-30 11:36 /dev/md_d126
brw-rw---- 1 root disk 254, 8065 2011-05-30 11:36 /dev/md_d126p1
brw-rw---- 1 root disk 254, 8066 2011-05-30 11:36 /dev/md_d126p2
brw-rw---- 1 root disk 254, 8128 2011-05-30 11:39 /dev/md_d127
brw-rw---- 1 root disk 254, 8129 2011-05-30 11:39 /dev/md_d127p1
/dev/md:
total 0
lrwxrwxrwx 1 root root 10 2011-05-30 11:39 h001r003 -> ../md_d127
lrwxrwxrwx 1 root root 10 2011-05-30 11:36 h001r004 -> ../md_d126
lrwxrwxrwx 1 root root 10 2011-05-30 11:36 h001r005 -> ../md_d125
dmesg:
[ 263.689751] md: bind<sde>
[ 263.689834] md: bind<sdf>
[ 263.689914] md: bind<sdg>
[ 263.689998] md: bind<sdd>
[ 263.691438] raid10: raid set md_d127 active with 4 out of 4 devices
[ 263.691454] md_d127: detected capacity change from 0 to 4000796639232
[ 263.692855] md_d127: p1
wynyard:~ # mdadm -vD /dev/md/h001r003
/dev/md/h001r003:
Version : 1.02
Creation Time : Sat May 21 15:26:26 2011
Raid Level : raid10
Array Size : 3907027968 (3726.03 GiB 4000.80 GB)
Used Dev Size : 1953513984 (1863.02 GiB 2000.40 GB)
Raid Devices : 4
Total Devices : 4
Persistence : Superblock is persistent
Update Time : Mon May 30 12:20:31 2011
State : clean
Active Devices : 4
Working Devices : 4
Failed Devices : 0
Spare Devices : 0
Layout : far=2
Chunk Size : 256K
Name : wynyard:h001r003 (local to host wynyard)
UUID : 9ca01512:203443f7:a2173168:5f44986e
Events : 40
Number Major Minor RaidDevice State
0 8 48 0 active sync /dev/sdd
1 8 64 1 active sync /dev/sde
2 8 80 2 active sync /dev/sdf
3 8 96 3 active sync /dev/sdg
wynyard:~ # mdadm -vE /dev/sd[d-g]
/dev/sdd:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : 9ca01512:203443f7:a2173168:5f44986e
Name : wynyard:h001r003 (local to host wynyard)
Creation Time : Sat May 21 15:26:26 2011
Raid Level : raid10
Raid Devices : 4
Avail Dev Size : 3907028896 (1863.02 GiB 2000.40 GB)
Array Size : 7814055936 (3726.03 GiB 4000.80 GB)
Used Dev Size : 3907027968 (1863.02 GiB 2000.40 GB)
Data Offset : 272 sectors
Super Offset : 8 sectors
State : clean
Device UUID : a1f7a0dc:7112a2bc:e11d6cd5:930ec677
Update Time : Mon May 30 12:22:36 2011
Checksum : f57561d9 - correct
Events : 40
Layout : far=2
Chunk Size : 256K
Device Role : Active device 0
Array State : AAAA ('A' == active, '.' == missing)
/dev/sde:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : 9ca01512:203443f7:a2173168:5f44986e
Name : wynyard:h001r003 (local to host wynyard)
Creation Time : Sat May 21 15:26:26 2011
Raid Level : raid10
Raid Devices : 4
Avail Dev Size : 3907028896 (1863.02 GiB 2000.40 GB)
Array Size : 7814055936 (3726.03 GiB 4000.80 GB)
Used Dev Size : 3907027968 (1863.02 GiB 2000.40 GB)
Data Offset : 272 sectors
Super Offset : 8 sectors
State : clean
Device UUID : b9904f82:b7aa0ded:fe828141:f556af7d
Update Time : Mon May 30 12:22:36 2011
Checksum : 3d8e40b7 - correct
Events : 40
Layout : far=2
Chunk Size : 256K
Device Role : Active device 1
Array State : AAAA ('A' == active, '.' == missing)
/dev/sdf:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : 9ca01512:203443f7:a2173168:5f44986e
Name : wynyard:h001r003 (local to host wynyard)
Creation Time : Sat May 21 15:26:26 2011
Raid Level : raid10
Raid Devices : 4
Avail Dev Size : 3907028896 (1863.02 GiB 2000.40 GB)
Array Size : 7814055936 (3726.03 GiB 4000.80 GB)
Used Dev Size : 3907027968 (1863.02 GiB 2000.40 GB)
Data Offset : 272 sectors
Super Offset : 8 sectors
State : clean
Device UUID : 82ea41f3:8d897dcd:6c0cfe16:b8b2a35a
Update Time : Mon May 30 12:22:36 2011
Checksum : 41615e88 - correct
Events : 40
Layout : far=2
Chunk Size : 256K
Device Role : Active device 2
Array State : AAAA ('A' == active, '.' == missing)
/dev/sdg:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : 9ca01512:203443f7:a2173168:5f44986e
Name : wynyard:h001r003 (local to host wynyard)
Creation Time : Sat May 21 15:26:26 2011
Raid Level : raid10
Raid Devices : 4
Avail Dev Size : 3907028896 (1863.02 GiB 2000.40 GB)
Array Size : 7814055936 (3726.03 GiB 4000.80 GB)
Used Dev Size : 3907027968 (1863.02 GiB 2000.40 GB)
Data Offset : 272 sectors
Super Offset : 8 sectors
State : clean
Device UUID : a6f5741b:bbe0092a:2568b4fd:5dff4755
Update Time : Mon May 30 12:22:36 2011
Checksum : a77b6938 - correct
Events : 40
Layout : far=2
Chunk Size : 256K
Device Role : Active device 3
Array State : AAAA ('A' == active, '.' == missing)
wynyard:~ # fdisk -l /dev/sd[d-g]
Disk /dev/sdd: 2000.4 GB, 2000398934016 bytes
255 heads, 63 sectors/track, 243201 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x000a1c3c
Device Boot Start End Blocks Id System
Disk /dev/sde: 2000.4 GB, 2000398934016 bytes
255 heads, 63 sectors/track, 243201 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x0005e157
Device Boot Start End Blocks Id System
Disk /dev/sdf: 2000.4 GB, 2000398934016 bytes
255 heads, 63 sectors/track, 243201 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x000592c0
Device Boot Start End Blocks Id System
Disk /dev/sdg: 2000.4 GB, 2000398934016 bytes
255 heads, 63 sectors/track, 243201 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x0009242e
Device Boot Start End Blocks Id System
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