Subject: Re: Adventures with QDSS
To: J. Buck Caldwell <buck_c@polygon.com>
From: Tom Ivar Helbekkmo <tih+mail@Hamartun.Priv.NO>
List: port-vax
Date: 04/15/1998 19:58:38
"J. Buck Caldwell" <buck_c@polygon.com> writes:

> Damn, alright, one more question, I promise, this will be the
> last. Ever since putting in my QDSS, my DHV11 has been giving me
> Silo errors. Can I change around the Q-bus order as so: KA650, MEM,
> MEM, MEM, DELNI/GRANT, DHV11, QDSS, QDSS, QDSS, TQK50/RQDX3 ? I
> assume that if you put the DHV11 closer to the CPU, it'll work
> better - but will that do anything detrimental to the QDSS?

The canonical ordering would be CPU, memory, DHV11, DEQNA, TQK50,
RQDX3 and, finally, QDSS.  Check out Micronote 41, which you can get
from the Sunsite repository, for more info on what and why.  This
doesn't mention the QDSS, though -- I quoted that at the end because
that's where our DEC tech put it in the only official installation of
it that I've seen.  Moving it up relative to the others may or may
make any difference (can someone say for sure?), but what is certain
is that you want that DHV11 right up there at the top of the bus.  It
definitely needs the priority.

-tih
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