Subject: Re: S L O O O O W MV2 source tarball unrolling?????
To: Tom Ivar Helbekkmo <>
From: NetBSD Bob <>
List: port-vax
Date: 10/26/2000 10:57:57
> A few days ago, you posted something about the ordering of the boards
> in this machine, saying:
> > I saw in an openvms wizard note that the order should be:
> > 
> >      tape - disk - serial - network - ram - cpu
> You (or the author of the note you read) must have misunderstood this.
> Higher priority is closer to the CPU (lower slot numbers), and the
> ordering you need is more like:
>         cpu, ram, tape, serial, network, disk

OK, I basically have that except the tape is swapped with the network

How low a priority can the serial card go, if all I want to do with it
is output to a serial printer?

And my card cage reads from left to right.....(:+}}...  But, I understand
where you are going.

> your case, you definitely want that tape controller way up the chain,
> in order to keep it streaming.
> On one of my PDP-11 systems, running 2.11BSD, the time to write one
> whole TK50 (~90MB) came down from 15 hours to 40 minutes by moving the
> controller up to the top of the bus!  Streaming is good!  :-)

Ohh, that is good to know.  I will try that and see how it goes.
A full tape dd/dd/tarset of 1.3.2 only took about an hour to write,
so that is not all that bad with the tape/ethernet reversed.

I am trying to find a PDP-11 for some 2.11BSD.   Maybe, if I get real

Also, I want to try a VAX 11/730, sometime, if I can scrounge one of
those locally.

What is the status of any VAX 11/725 port of NetBSD?