Has anyone successfully run three DSSI disk drives on a KFQSA? I've tried
several times to configure mine to do that but it keeps coming up bogusly.
The only "odd" bit is that one of my drives is _not_ connected to the
control panel (you know the protect/enable/etc) panel. I am beginning to
suspect I need to understand what the three switches that are on all RF
series drives actually do.
I can get two to appear, but not the third.
Configuration:
** **
RF72 RF71 RF71
(UNIT=2) (UNIT=1) (UNIT=0)
*TERM*-----+--------+---------+-------> KFQSA (id 6)
KFQSA has three "nodes" (0, 1, and 2)
776450 - 0
760334 - 1
760340 - 2
UNIT 1 and UNIT 0 are connected to the control panel, with ID plugs 0 and
1. UNIT 2 is not connected to the control panel (no cable nor ID plug)
With three disks defined on the KFQSA I get one to show up (usually UNIT 2
as DUA2). With two defined I get DUA2 and DUB0. If I disconnect the RF72 I
get DUA0 and DUB1.
Questions:
What do the switches on the drives do?!?
Has anyone configured three disks on one of these things?
--Chuck
Rumor has it that Mike Cheponis may have mentioned these words:
>Peter, I do hope your arm heals quickly.
>A better example is: how much lead can you deliver to a load with two guns
>rated 1 Mega-Bullets per Second vs one gun rated at 2 MB/Sec?
>Answer, of course: They produce the same amount of deposited lead on the
>target.
Now, let me use your analogy to prove that multiple independent busses are
better than one single bus:
Let's say in each of your cases, 1 of the weapons jams exactly halfway thru
it's job... How much lead is delivered in each case?
(1) 2MBullets/Sec: 1 Million bullets.
(2) 1MBullets/Sec: 1.5 Million bullets.
The multiple bus structure delivered more bullets with 1 bus still ready
for work, whereas the single bus structure's work ground to a halt waiting
for operator intervention.
I hope to say that this is what others and myself have tried to convey.
Hope this helps clear up my point,
Roger "Merch" Merchberger
--
Roger "Merch" Merchberger --- sysadmin, Iceberg Computers
Recycling is good, right??? Ok, so I'll recycle an old .sig.
If at first you don't succeed, nuclear warhead
disarmament should *not* be your first career choice.
Our latest list spammer has been traced, located, and formally scorched.
I -love- sending spammer flames from a my-deja account... it's blocked to
all incoming E-mail (accepts outgoing only), so anything a spammer sends
just bounces right back at them.
Besides the 200 degree C flame to the spammer in question, politely formal
complaints were filed with their ISPs. Granted, I can't recall ever getting
a response from a Korean or Chinese ISP that they toasted a spammer
themselves, but there's always a first time.
I'll advise if I get any type of valid response.
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Bruce Lane, Owner and head honcho, Blue Feather Technologies
http://www.bluefeathertech.com // E-mail: kyrrin(a)bluefeathertech.com
Amateur Radio: WD6EOS since Dec. '77
"Our science can only describe an object, event, or living thing in our
own human terms. It cannot, in any way, define any of them..."
DEC released a 4K core paper tape basic for the edusystem. Does anyone have
this basic program and can I get a copy of it or trade a copy for something?
Hi everyone;
I found a board that could fit in my microvax II if
I decided to push it in. Let me describe it:
manufacturer: Recognition Concepts Inc., assy. # 100220,
then in the back: 100221 fab rev A
It has:
-large DIP 64 pin IC by TRW, marked 1007JIC3 8451/AP
-LS glue logic
-7808, 7908 and 7906 regulators
-couple LH0024's, four other analog chips in a section where
traces are sandwiched between ground planes. The only external
connector is a subminiature rf-style gold-plated connector, close
to this analog section, and, most important,
-two DAC0800LCN chips.
I thought it might be some kind of successive approx A/D, but, why two
DAC's then?
cascading them to get a higher resolution would require unreliable,
painful calibration...
And only one channel... or maybe the analog multiplexer occupied a
separate board...
Has anybody seen this beast before?
Carlos.
--
Carlos Murillo-Sanchez email: cem14(a)cornell.edu
428 Phillips Hall, Electrical Engineering Department
Cornell University, Ithaca, NY 14853
DAE SANG CO., LTD.
TEL:+82-2-3142-6464 FAX:+82-2-338-1052
E-MAIL: ktco(a)tradingking.com HOMEPAGE: www.tradingking.com
CONTACT:Soppia Sung
To :classiccmp
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E-MAIL: ktco(a)tradingking.com HOMEPAGE: www.tradingking.com
>>A bit off topic; a friend of mine has been offered a 9210 and asked
>>me if it was worth the effort of moving it. Without considering the
>>power and space requirements, I would prefer a 780 to a 9000.
>>
>>If you were offered a 9000 would you take it or let it be scrapped? In
>>this case the biggest problem is the distance; the machine is located
>>about 1000Km from us.
>The biggest problem isn't storage and power? I'm not sure how many racks
>you're talking but I would think this could be a fairly large system.
Don't forget air-conditioning, too. A 9000 is *not* a small system.
--
Tim Shoppa Email: shoppa(a)trailing-edge.com
Trailing Edge Technology WWW: http://www.trailing-edge.com/
7328 Bradley Blvd Voice: 301-767-5917
Bethesda, MD, USA 20817 Fax: 301-767-5927
Anyone up for a little mind bender? We begin with the images below:
http://www.computergarage.org/~jwilling/P0870.JPGhttp://www.computergarage.org/~jwilling/P0871.JPGhttp://www.computergarage.org/~jwilling/P0872.JPGhttp://www.computergarage.org/~jwilling/P0873a.JPG
One official 'no prize' to the first person who can identify these items.
(or, perhaps a real prize... You never know)
---
Some Clues:
These artifacts date from early 1962 (when they were in production -
probably designed sometime in 1960-1961)
These are dedicated units, with a hard-wired program (using a diode logic
matrix contained in the larger unit but not visible in these images)
The large chassis in the first two images is the central 'computer'. This
unit could service up to ten machines that the smaller chassis in the
second pair of images were connected to. (more or less on a FIFO on-demand
time-shared basis)
The smaller unit gathers data from a machine for processing by the larger
unit, and once a solution has been determined, the larger unit relays (no
pun intended) the information back to the requesting smaller unit which
latches the solution data for display along with the original input data on
a visual readout device which is part of the machine.
These were a production item, in fairly common use and their results could
be seen on public display nearly anywhere around the country (and to some
extent the world) where they were in use.
Collectively, the units were known as the "' ' Computer" and were
considered an add-on or enhancement to the original machine with which they
were used.
No direct (or manual) input from the 'user' was required in the normal use
of this computer.
---
The game ends with the first correct solution or on 01-November-1999
(whichever comes first)
---
The images are un-retouched, except for image P0873a where part of the ID
plate that would give away the answer has been obscured.
And, if anyone really thinks it will help I will add some shots of the
inside of the chassis in a day or so... LOTS of wires and stuff!
Have at you!
-jim
---
jimw(a)computergarage.org
The Computer Garage - http://www.computergarage.org
Computer Garage Fax - (503) 646-0174