I'm having trouble setting up raid0 on a debian box running 2.4.4 kernal with
raid support, for the first time. I'd appreciate some help working out how to
get it going.
[1]
installed raidtools and raidtools2. device /dev/md0 was created successfully.
[2]
cat /proc/mdstat
Personalities : [linear] [raid0] [raid1] [raid5]
read_ahead not set
unused devices: <none>
[3]
confirmed for raid0 module
cat /etc/modules.conf
----snip-----
### update-modules: start processing /etc/modutils/raidtools
alias md-personality-1 linear
alias md-personality-2 raid0
alias md-personality-3 raid1
alias md-personality-4 raid5
### update-modules: end processing /etc/modutils/raidtools
----snip-----
[5]
ran "/etc/init.d/modutils restart"
[6]
locate raid0
/lib/modules/2.2.19pre17/block/raid0.o
/usr/include/linux/raid/raid0.h"
[7]
Created two linux partitions /dev/hda5 & /dev/hdb6 of equal size ie approx 27GB.
These partitions were left unmounted.
[8]
used "mdcreate -c8k raid0 /dev/md0 /dev/hda5 /dev/hdb6 to create /etc/mdtab"
cat /etc/mdtab
# mdtab entry for /dev/md0
/dev/md0 raid0,8k,0,c4ed3d70 /dev/hda5 /dev/hdb6
[9]
ran the command "mdadd -ar"
stderr output
/dev/hda5: No such device
/dev/hdb6: No such device
/dev/md0: No such device
[10] also tried creating a raidtab file and executing this with mkraid
cat /etc/raid/raidtab
#This is a RAID 0 (Stripe, no parity) configuration
raiddev /dev/md0 # Specify RAID device for config
raid-level 0 # Specify type of RAID
[linear,0,1 etc]
nr-raid-disks 2 # Specify number disks in
stripe
persistent-superblock 1 # Allow RAID to autodetect
on boot
chunk-size 32 # 4k to 4M emperically
determined
device /dev/hda5 # Specify device for 1st
RAID disk
raid-disk 0 #First disk of RAID
device /dev/hdb6 # Specify device for 2nd
RAID disk
raid-disk 1 # Second disk of RAID
running "mkraid /etc/raid/raidtab" lead to stderr output:
mkraid version 0.36.4
parsing configuration file
raid level 0 not supported
--
Kind regards
Christian
