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Date:      Thu, 12 Nov 1998 13:21:10 +0100
From:      Martin Cracauer <cracauer@cons.org>
To:        =?iso-8859-1?Q?S=F8ren_Schmidt?= <sos@freebsd.dk>
Cc:        dillon@apollo.backplane.com, grog@lemis.com, hackers@FreeBSD.ORG
Subject:   Re: SCSI vs. DMA33..
Message-ID:  <19981112132110.B16085@cons.org>
In-Reply-To: =?iso-8859-1?Q?=3C199811120841=2EJAA00363=40freebsd=2Edk=3E=3B_from_S=F8?= =?iso-8859-1?Q?ren_Schmidt_on_Thu=2C_Nov_12=2C_1998_at_09:41:48AM_%2B0100?=
References:  <19981111233422.A10862@cons.org> <199811120841.JAA00363@freebsd.dk>

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In <199811120841.JAA00363@freebsd.dk>, Søren Schmidt wrote: 
> It seems Martin Cracauer wrote:
> > 
> > You didn't read what I wrote. I am aware of these issue and have 4
> > drives, 4 channels on two cards. That it doesn't work because the two
> > channels on each Promise card block each other is a different matter
> > that was not foreseeable.
> 
> I just checked here, I have no problems using both channels at once,
> do you have the BIOS enabled ?? If not you wont be running your
> drives at full specs...

I don't have the BIOS installed, because I boot from a SCSI disk :-(

I thought it can't be that bad because I'm much faster than the normal
DMA stuff using the onboard IDE controllers and boot -v shows udma
settings and anyway I can't think of a reason why the channels are
synchronized without the BIOS. Next thing to try after I copied my
boot parition. As I think over it, a /boot.conf entry could be
sufficient. 

If you're right, my plan seems to work. Cheap fast space :-)))

Thanks
	Martin
-- 
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
Martin Cracauer <cracauer@cons.org> http://www.cons.org/cracauer
  Tel.: (private) +4940 5221829 Fax.: (private) +4940 5228536
  Paper: (private) Waldstrasse 200, 22846 Norderstedt, Germany

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