Here's my hardware configuration:
One ATA66 drive attached to the MB
Two ATA66 drives attached to a Promise Ultra/66 controller
In order to get the Promise Ultra/66 controller to work, I had to
apply a patch to the 2.2.14 kernel. I took the standard kernel, ran
the patch, configured it, compiled, and booted on it, and it came up
and detected the Promise Ultra/66 with no problems.
Then I did fdisk, and put some type FD (Linux RAID) partitions on the
Promise-attached drives. They look like this:
/dev/hde1 1 31 15592+ 83 Linux
/dev/hde2 32 28478 14337288 fd Linux raid autodetect
/dev/hde3 28479 39770 5691168 83 Linux
and
/dev/hdg1 1 31 15592+ 83 Linux
/dev/hdg2 32 28478 14337288 fd Linux raid autodetect
/dev/hdg3 28479 39770 5691168 83 Linux
Then I put this in /etc/raidtab:
raiddev /dev/md0
raid-level 1
nr-raid-disks 2
nr-spare-disks 0
chunk-size 16
persistent-superblock 1
device /dev/hde2
raid-disk 0
device /dev/hdg2
raid-disk 1
and when I run
mkraid /dev/md0
I get:
[hh@server raidtools-0.90]# mkraid /dev/md0
handling MD device /dev/md0
analyzing super-block
disk 0: /dev/hde2, 14337288kB, raid superblock at 14337216kB
disk 1: /dev/hdg2, 14337288kB, raid superblock at 14337216kB
mkraid: aborted, see the syslog and /proc/mdstat for potential clues.
I don't see anything in syslog, and /proc/mdstat looks like this:
[hh@server raidtools-0.90]# cat /proc/mdstat
Personalities : [3 raid1] [4 raid5]
read_ahead not set
md0 : inactive
md1 : inactive
md2 : inactive
md3 : inactive
Any clues? I feel like I've done everything according to the
instructions, and I feel like I'm very close to getting it to work,
but it's still not working. Have I left out something important in
the kernel config? Or did I need a RAID patch to the 2.2.14 kernel to
get it to work? This last possibility would be unfortunate, because
it will be difficult to apply both a RAID patch and a Promise Ultra/66
patch.
Thanks for your help,
e
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