Found this: 
http://forums.gentoo.org/viewtopic.php?t=10380&highlight=scsi+grub+boot 
and in that page is also a link to Compaq's site with some downloads for 
most of their servers. Hopefully between the two you'll find an answer.

On Tue, Jul 29, 2003 at 09:52:33PM -0500, John Hoffoss wrote:
> I've seen information on this somewhere before, but I can't remember 
> where, or what the solution was, unfortunately. I do know software RAID 
> is not bootable, but that's not your issue. You may (if your SCSI card 
> is similar to mine, a Compaq Smart 2SL) need to use /dev/ida/discx/party 
> instead of c0d0. I wrestled with this for awhile myself until I got 
> that. But I don't boot off my SCSI stuff.
> 
> John
> 
> On Tue, Jul 29, 2003 at 09:30:54PM -0500, Jay Kline wrote:
> > Ive never tried that before, but I have had problems with grub on raid
> > devices.  The problem is grub needs to have access to the filesystem
> > itself. Since you have a raid setup, grub wont be able to read the
> > filesystem (needs drivers and/or configuration for it) and thus wont be
> > able to load. My guess is you are out of luck in this, and you may have
> > better luck getting another parition not in a raid, or worse case, use a
> > floppy/cdrom/network boot method.
> > 
> > 
> > Jay
> > 
> > 
> > On July 29, 5:28 pm Amy Tanner <amy at real-time.com> wrote:
> > > I didn't get any response from debian-user.  Anyone here have any ideas?
> > > Thanks.
> > >
> > > ----- Forwarded message from Amy Tanner <amy at real-time.com> -----
> > >
> > > Date: Thu, 24 Jul 2003 07:11:34 -0500
> > > From: Amy Tanner <amy at real-time.com>
> > > To: debian-user at lists.debian.org
> > > Subject: grub-install can't find BIOS drive
> > > X-Mailing-List: <debian-user at lists.debian.org> archive/latest/290506
> > >
> > > I'm trying to install grub on a Compaq DL360 G1 with 2 9GB drives doing
> > > RAID 0.  I get this error:
> > >
> > > # grub-install --recheck /dev/ida/c0d0
> > > Probing devices to guess BIOS drives. This may take a long time.
> > > /dev/ida/c0d0 does not have any corresponding BIOS drive.
> > >
> > > I'm running grub 0.91-2.  Any ideas?  Thanks.
> > > --
> > > Amy Tanner
> > > amy at real-time.com
> > >
> > >
> > > --
> > > To UNSUBSCRIBE, email to debian-user-request at lists.debian.org
> > > with a subject of "unsubscribe". Trouble? Contact
> > > listmaster at lists.debian.org
> > >
> > > ----- End forwarded message -----
> > >
> > > --
> > > Amy Tanner
> > > amy at real-time.com
> > >
> > > _______________________________________________
> > > TCLUG Mailing List - Minneapolis/St. Paul, Minnesota
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> > > https://mailman.real-time.com/mailman/listinfo/tclug-list
> > 
> > _______________________________________________
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> 
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