Subject: RE: using the KFQSA in BA440
To: Michael Kukat <michael@bsdfans.org>
From: Administrator <Administrator@ugm.ca>
List: port-vax
Date: 02/01/2002 13:45:21
I guess it doesnt matter that the drives show up twice...because...
netbsd still basically nearly completely ignores SII and SHAC...right?

-----Original Message-----
From: Michael Kukat [mailto:michael@bsdfans.org]
Sent: Friday, February 01, 2002 1:14 PM
To: Chuck McManis
Cc: Administrator; port-vax@netbsd.org
Subject: Re:=20


Hi !

On Fri, 1 Feb 2002, Chuck McManis wrote:
> The 4000/300 connects the DSSI drives internally via the back plane.
This
> is "hard coded" to connect to one of the DSSI channels on the CPU. If
you
> install a KFQSA, you _should_ bea ble to connect it to the front panel
DSSI
> connector and create a "loop" the same drives will appear twice to the
CPU,
> once as MSCP drives and once as DSSI drives. I've not tried this so I
> cannot say that I've seen it work, but both the DSSI bus and the DSSI
> drives support multiple masters talking to the bus.

It _IS_ possible. I have this setup running. If you give ID7 to KFQSA
and a
different ID to the onboard stuff (6 here), and just connect the KFQSA
to the
internal Bus 0 (i think... the cable is currently not connected, but i
think
it was bus 0 where i got it), you can go with it and boot NetBSD from
DSSI
disk.

...Michael

--=20
http://www.bsdfans.org/    Home network powered by: NetBSD OpenBSD
FreeBSD IRIX
Solaris AIX HP-UX Tru64 MUNIX Ultrix VMS SINIX Dolphin_Unix OpenStep
MacOS A/UX