Hi Tod
I do not see any mistake; from the theory of raid5 you should be able to
set a raid5
with 8 disks or more.
Maybe I am wrong.
Sorry that I can't help you further.
Greetings, Dietmar
Tod Detre wrote:
>
> Hi, sorry if this is a FAQ/known problem, but I just joined the list.
>
> I'm Trying to make a 8 disk raid5 array and I'm having problems. Every time I
> mkraid it get part way through and crashes the machine. It must not be a hard
> crash because softdog catches it and reboots the machine. I get no error
> messages either scsi or raid. I'm using kernel 2.2.9, on a IBM-PCserver 704
> (there are two adaptec 2940's built into the motherboard), and 10 2.0gb seagate
> baracuda's. Two of the drives are partitioned for raid1 (sde[1-3] & sdj[1-3]).
> The other drives are partitioned for one swap partition and one raid5 partition.
> I've had a raid5 array work for 4 drives but not 8 or 6. I'm working on 5 right
> now, but it takes awhile. Any ideas? Thanks in advance.
>
> Here's my conf files.
>
> raiddev /dev/md3
> raid-level 5
> nr-raid-disks 8
> chunk-size 32
>
> # Parity placement algorithm
>
> #parity-algorithm left-asymmetric
> parity-algorithm left-symmetric
> #parity-algorithm right-asymmetric
> #parity-algorithm right-symmetric
>
> # Spare disks for hot reconstruction
> #nr-spare-disks 0
>
> device /dev/sda3
> raid-disk 0
>
> device /dev/sdb3
> raid-disk 1
>
> device /dev/sdc3
> raid-disk 2
>
> #device /dev/sdd3
> #raid-disk 3
>
> device /dev/sdf3
> raid-disk 3
>
> device /dev/sdg3
> raid-disk 4
>
> device /dev/sdh3
> raid-disk 5
>
> device /dev/sdi3
> raid-disk 7
>
> ---------------------------------------------
>
> raiddev /dev/md0
> raid-level 1
> nr-raid-disks 2
> nr-spare-disks 0
>
> device /dev/sde1
> raid-disk 0
>
> device /dev/sdj1
> raid-disk 1
>
> ----------------------------------------------
>
> raiddev /dev/md1
> raid-level 1
> nr-raid-disks 2
> nr-spare-disks 0
>
> device /dev/sde2
> raid-disk 0
>
> device /dev/sdj2
> raid-disk 1
>
> ---------------------------------------------------
>
> raiddev /dev/md2
> raid-level 1
> nr-raid-disks 2
> nr-spare-disks 0
>
> device /dev/sde3
> raid-disk 0
>
> device /dev/sdj3
> raid-disk 1
--
"For those about to rock - we salute you!"
Dietmar Stein, Systemadministrator UNIX/Linux
http://home.t-online.de/home/dstein2203
[EMAIL PROTECTED], [EMAIL PROTECTED]
