Re: [cobalt-users] OS restore: Raq 4r OS to Raq 3i ... possible?

[Gerald Waugh <gwaugh@xxxxxxxxxxxxxxxxxxxxxxx>]

On Sunday 10 March 2002 10:04 am, you wrote:
> > I seem to remember reading somewhere (probably here) that someone
>
> had done
>
> > an OS restore of a Raq 4r OS to a Raq 3i box, and successfully
>
> gotten RAID
>
> > 0 to work on the 3i box.
>
> I just did it on Friday to a RaQ3i. I put a Maxtor drive on the second
> controller with the existing Seagate drive on the original controller.
> They are not the same size, the Maxtor is slightly larger. Everything
> installed perfectly the first time around. I do know that both drives
> are 5400 RPM and read here on the list that they could not be a higher
> speed. However, you get RAID 1 (mirroring), not RAID 0. Actually I
> would rather have RAID 0 for performance because I already have good
> backup plans. If anyone knows how to get RAID 0, please let me know.

http://www.linuxdoc.org/HOWTO/Software-RAID-HOWTO-4.html#ss4.3

It should be as simple as changing 
/etc/raidtab   raid-level  1 to 0
and run
mkraid /dev/md0

--
Gerald Waugh