14 Mar
2002
14 Mar
'02
8:39 a.m.
Ethan Dicks wrote:
ports. No DMB32 or anything like that (not that I would mind
locating
one of _those_ either).
If only you'd asked 18 months ago :-)
As you can see, it's a full boat - 16MB of RAM in 5
cards. I'd
love to
run across an inexpensive MS820-CA or two. I
wouldn't mind pulling
the
If only you'd asked ... :-(
MS820-AAs out, but 16MB is an OK amount of memory for a
single
user. I'm
also on a long-term quest for free or nearly free KA825
boards -
I'd be
nice to bring this up to an 8350.
If ... No, done that enough for one email.
If you can get three KA820s (or KA825s)
you should be able to get that to work too!
(But you cannot mix KA820 & KA825).
right from looking at where the Lance chip is on the
DEBNT. If
anyone
has installation instructions, particularly cabling
instructions,
those would be very helpful.
The Owner's Manual is available at:
http://208.190.133.201/decimages/moremanuals.htm
as is the Installation Guide.
I *thought* I'd also scanned and sent an
install guide for one of the VAXBI ethernet
options, but I guess not.
When I had one in the lab, my VAX 8350
just mostly worked so I don't have too much
experience of playing with the ethernet.
The DSB32 and DMB32, and the CPU(s)
and memory were all pretty straightforward.
The only funny I remember with ethernet is
that you need to cable up a little bit extra
for the power required by the AUI in
the bulkhead. But that may well have been
the VAX 6000 ...
Antonio
14 Mar
14 Mar
5:54 p.m.
--- "Carlini, Antonio" <Antonio.Carlini(a)riverstonenet.com> wrote:
Sigh. Woe is me. Ah well... perhaps another one will float to the
top, now that I'm using mine again. As I've said, I need a Unibus-
equipped VAX, and once I get a DWBUA on it, I'll be all set. The
goodies I mentioned here are most definitely optional.
Ethan Dicks wrote:
No DMB32... (not that I would mind locating
one of _those_ either).
If only you'd asked 18 months ago :-) If you can get three KA820s (or KA825s)
you should be able to get that to work too!
Three CPUs on the BI bus? Does that work? I thought it maxed out at
two. Perhaps they work, but they spend more time tripping over each
other than performing useful tasks?
(But you cannot mix KA820 & KA825).
I knew that. Also, you can't mix boards of the same type with different
microcode revs. I had to juggle my KA820s when I got them because they
were nowhere near the same rev. Fortunately, I still have the microcode
floppies I used back then. Should be useful for dumping/loading any
KA825s I find, unless they come as a matched set.
The only funny I remember with ethernet is
that you need to cable up a little bit extra
for the power required by the AUI in
the bulkhead. But that may well have been
the VAX 6000 ...
OK... I think mine came out of an 8xxx (a Nautilus-class machine,
not a Scorpio (82xx/83xx)). Don't know anything about an extra
cable.
I know that 12V is available to the bus in a BA-32 - we sent +/-12VDC
down our wires to power the 1488s and 1489s on the I/O bulkhead for
the COMBOARD-BI. Caused us no end of headache - I tried to tell the
design engineer that DEC stuff was designed for reverse-oriented cables;
stuff might not work, but it wouldn's smoke. If a customer swaps our
cables left-right _and_ installs them 180 degrees turned around (not
as difficult to do as it sounds), it sends +12VDC into one of the 74AS645
chips on the bulkhead PCB. We had just about every customer try it once.
Even if they guessed correctly the first time, if things didn't work
perfectly, they tried it the other way. :-( The only installs that
went smoothly were the ones I did. :-P
Anyway... I know 12V is available. I don't know if it's run down the
pipe properly with a DEBNT or not in a BA-32.
Any additional data would be handy. I guess I can go check the proper
pins on the AUI connector for voltage. No voltage is a bad sign. It
means I have to kludge up or locate a cable.
-ethan
__________________________________________________
Do You Yahoo!?
Yahoo! Sports - live college hoops coverage
http://sports.yahoo.com/
11:13 p.m.
On Thu, Mar 14, 2002 at 11:54:31PM -0800, Ethan Dicks wrote:
Three CPUs on the BI bus? Does that work?
http://mail-index.netbsd.org/tech-smp/2001/05/30/0000.html
-----
Subject: VAX now runs multicpu!
To: None <port-vax(a)netbsd.orgorg, tech-smp(a)netbsd.org>
From: Anders Magnusson <ragge(a)ludd.luth.se>
List: tech-smp
Date: 05/30/2001 18:16:11
I just got a VAX 8350 with 3 CPUs to use all three processors.
I have tested it a little, and it seems to work quite fine :-)
It shouldn't be too hard to make it running on some funnier
machines, like the 8800 and the 6000 series.
The VAX 8350 system is probably the slowest multiprocessor system
that NetBSD will ever support; each CPU does about 2VUPS (~2MIPS) :-)
-- Ragge
-----
--
tsch??,
Jochen
Homepage: http://www.unixag-kl.fh-kl.de/~jkunz/
15 Mar
15 Mar
2:09 a.m.
--- Jochen Kunz <jkunz(a)unixag-kl.fh-kl.de> wrote:
On Thu, Mar 14, 2002 at 11:54:31PM -0800, Ethan Dicks
wrote:
Three CPUs on the BI bus? Does that work?
http://mail-index.netbsd.org/tech-smp/2001/05/30/0000.html ...The VAX 8350 system is probably the slowest
multiprocessor system
that NetBSD will ever support; each CPU does about 2VUPS (~2MIPS) :-)
That's rather generous, isn't it? The KA820 is, IIRC, virtually the
same speed as the uVAX-II (0.95 VUPS). I didn't think the KA825 was
twice as fast. I was thinking 35%-50% faster at best.
Ah well... I'd be happy with *one* KA825, let alone two. I doubt I'd
ever need three. I could always test my multiprocessor mods to the
COMBOARD-BI driver (which were only tested in practice by our beta
customers, since we never had a multiprocessor VAX during development).
-ethan
__________________________________________________
Do You Yahoo!?
Yahoo! Sports - live college hoops coverage
http://sports.yahoo.com/
8318
days inactive
8319
days old
3 comments
3 participants
participants (3)
-
Antonio.Carlini＠riverstonenet.com -
erd_6502＠yahoo.com -
jkunz＠unixag-kl.fh-kl.de