I have an 11 disk RAID5 set working with the new RAID code.
Scott
On Sat, 22 May 1999, Dietmar Stein wrote:
> 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]
>
>
