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Date:      Thu, 12 Nov 1998 13:51:59 +0100 (CET)
From:      Søren Schmidt <sos@freebsd.dk>
To:        cracauer@cons.org (Martin Cracauer)
Cc:        dillon@apollo.backplane.com, grog@lemis.com, hackers@FreeBSD.ORG
Subject:   Re: SCSI vs. DMA33..
Message-ID:  <199811121252.NAA00697@freebsd.dk>
In-Reply-To: <19981112132110.B16085@cons.org> from Martin Cracauer at "Nov 12, 1998  1:21:10 pm"

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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 :-(

And? that should be a problem, I dont boot on those either (yet)

> 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 :-)))

Yup, works for me that way...

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Søren Schmidt          (sos@freebsd.org)       FreeBSD Core Team member


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