On my RedHat 6.1 box, I have just configured a raidtab file for disk
mirroring:
raiddev /dev/md0
raid-level 1
nr-raid-disks 2
nr-spare-disks 0
persistent-superblock 1
chunk-size 8
device /dev/hda1
raid-disk 0
device /dev/hdd1
raid-disk 1
raiddev /dev/md1
raid-level 1
nr-raid-disks 2
nr-spare-disks 0
persistent-superblock 1
chunk-size 8
device /dev/hda5
raid-disk 0
device /dev/hdd5
raid-disk 1
When I run mkraid /dev/md0 I get:
handling MD device /dev/md0
analyzing super-block
disk 0: /dev/hda1, 1028128kB, raid superblock at 1028032kB
/dev/hda1 is mounted
mkraid: aborted, see the syslog and /proc/mdstat for potential clues.
This is mdstat:
Personalities :
read_ahead not set
unused devices: <none>
I can find no reference to read_ahead in the docs. Does anyone have any clues?
Regards,
Brad
