hello,
after reboot, md only binds to one mirror (/dev/hdb1).
raid1: raid set md0 active with 1 out of 2 mirrors
After adding /dev/hda1 manually 'mdadm --add /dev/md0 /dev/hda1', the
raid seems to work well:
isp:/var/log# cat /proc/mdstat
Personalities : [raid1]
md0 : active raid1 hda1[0] hdb1[1]
154191744 blocks [2/2] [UU]
Any idea what I did wrong?
Tia
some system information:
isp:/var/log# uname -r
2.6.17.8
isp:/var/log# mdadm -V
mdadm - v1.9.0 - 04 February 2005
isp:/var/log# fdisk -l
Disk /dev/hda: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/hda1 * 1 19196 154191838+ fd Linux raid
autodetect
/dev/hda2 19197 19457 2096482+ 5 Extended
/dev/hda5 19197 19388 1542208+ 82 Linux swap /
Solaris
Disk /dev/hdb: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/hdb1 * 1 19196 154191838+ fd Linux raid
autodetect
/dev/hdb2 19197 19457 2096482+ 5 Extended
/dev/hdb5 19197 19388 1542208+ 82 Linux swap /
Solaris
Disk /dev/md0: 157.8 GB, 157892345856 bytes
2 heads, 4 sectors/track, 38547936 cylinders
Units = cylinders of 8 * 512 = 4096 bytes
#
isp:/var/log# grep md messages
Aug 23 22:16:07 isp kernel: Kernel command line: root=/dev/md0
md=0,/dev/hda1,/dev/hdb1 ro
Aug 23 22:16:07 isp kernel: md: md driver 0.90.3 MAX_MD_DEVS=256,
MD_SB_DISKS=27
Aug 23 22:16:07 isp kernel: md: bitmap version 4.39
Aug 23 22:16:07 isp kernel: md: raid1 personality registered for level 1
Aug 23 22:16:07 isp kernel: md: md0 stopped.
Aug 23 22:16:07 isp kernel: md: bind<hdb1>
Aug 23 22:16:07 isp kernel: raid1: raid set md0 active with 1 out of 2
mirrors
Aug 23 22:16:07 isp kernel: EXT3 FS on md0, internal journal
Aug 23 22:45:55 isp kernel: Kernel command line: root=/dev/md0
md=0,/dev/hda1,/dev/hdb1 ro
Aug 23 22:45:55 isp kernel: md: md driver 0.90.3 MAX_MD_DEVS=256,
MD_SB_DISKS=27
Aug 23 22:45:55 isp kernel: md: bitmap version 4.39
Aug 23 22:45:55 isp kernel: md: raid1 personality registered for level 1
Aug 23 22:45:55 isp kernel: md: md0 stopped.
Aug 23 22:45:55 isp kernel: md: bind<hdb1>
Aug 23 22:45:55 isp kernel: raid1: raid set md0 active with 1 out of 2
mirrors
Aug 23 22:45:55 isp kernel: EXT3 FS on md0, internal journal
<manually added /dev/hda1/>
Aug 24 07:12:30 isp kernel: md: bind<hda1>
Aug 24 07:12:30 isp kernel: md: syncing RAID array md0
Aug 24 07:12:30 isp kernel: md: minimum _guaranteed_ reconstruction
speed: 1000 KB/sec/disc.
Aug 24 07:12:30 isp kernel: md: using maximum available idle IO
bandwidth (but not more than 200000 KB/sec) for reconstruction.
Aug 24 07:12:30 isp kernel: md: using 128k window, over a total of
154191744 blocks.
Aug 24 08:28:05 isp kernel: md: md0: sync done.
Kind Regards
Andreas Pelzner
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