23 Jan
2004
23 Jan
'04
12:51 p.m.
At 2004-01-23 10:32 AM, Mike Gemeny wrote:
{snip}
Yes, GMU had an HP 2000 ACCESS system with 21MX-E processors, 7920 disc (50
MB of which the ACCESS operating system could only address the first 33
MB), 32K WORDS of RAM in each processor, 32 MUX ports, SYNC card (for RJE),
7970 1600 BPI tape, and an HP 2640B terminal as the console.
I was the system manager for the GMU HP 2000 from its delivery in August,
1978 until I left GMU in January, 1984. At the time we received the system
(August, 1978), we were told that our system was one of the last two off
the assembly line - how accurate that claim was, I don't know.
At one time GMU had the HP 2000 ACCESS source code, operating system
manuals, patching instructions, etc. I used the source code and manuals to
patch the ACCESS OS we used. The patch made using the HP 2640B terminal as
the system console a much more pleasant experience. Basically, it changed
the normal console backspace from a backspace and underscore to a backspace
and a bell (a one byte patch).
At various times we had to limp along with a 2100 processor while repairs
were made to our 21MX-E processor. Many years have gone by, but I remember
the 2100 as being VERY much slower. Was the 21MX-E twice as fast? Three
times as fast? I can't say - too many years have gone by.
{snip}
that the
7905 is 7.5 Meg words or 15 Meg bytes,
> feel free to offer information to the contrary.
I believe that is correct. GMU had a single 7920 50 Mb disc, but HP custom
formatted it for use by the HP 2000 ACCESS. If I remember correctly, a
disc diagnostic/utility program (which I think was called SLUTH) was used
to configure the drive. I'm guessing that the drive was formatted as
having a total of 65,535 sectors, which is approximately 33 Mb.
Question: How are the 7905 and 7906 discs you are using formatted?
{snip}
I hope so too.
Not many systems were 21MX-E, but as I recall, GMU was
and it was reported that it
was quite noticeably faster. > How much disk are you running?
My recollection is that the 7900 is 2.5 Meg words or 5 Meg bytes, and > Mike.
>
>
>
John
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23 Jan
23 Jan
2:24 p.m.
Yes, GMU had an HP 2000 ACCESS system with 21MX-E
processors,
Are you sure it was 21MX-E and not 21MX-M? Just curious!
7920 disc (50
MB of which the ACCESS operating system could only address the first 33
MB), 32K WORDS of RAM in each processor, 32 MUX ports, SYNC card (for
RJE),
7970 1600 BPI tape, and an HP 2640B terminal as the
console.
My full 2000/Access config is 2100A cpu w/32K, 2100S cpu w/32K, 7906 drive
(20mb, 15mb usable cause access sees it as a 7905), 7900A drive (10mb) 16
Mux ports, Sync card for RJE, 7970 1600 bpi tape, 2748b paper tape punch,
2895b paper tape reader, 7261 optical card reader, and 2610 printer :) The
7261 and 2610 haven't been refurbed yet though. I hope to switch from 2100
cpus to 21MX-E's at some point.
I was the system manager for the GMU HP 2000 from its
delivery in August,
1978 until I left GMU in January, 1984
If you are ever in St. Louis, stop by and you can reminisce and boot Access
up :)
I used the source code and manuals to
patch the ACCESS OS we used.
I have a whole list of patches for 2000E, mostly with regards to terminal
handling (accepting 80 column lines instead of 72 max), baud rates, etc.
Was the 21MX-E twice as fast? Three
times as fast? I can't say - too many years have gone by.
Remember, there are like three different kinds of memory you can put in an
E, each one up the line is a fair amount faster. So, how fast the E is
depends on which of those memory types is installed.
If I remember correctly, a
disc diagnostic/utility program (which I think was called SLUTH) was used
to configure the drive.
I have seen mention of a program called SLUTH for disc drives, but my
impression was that it was a 3rd party program, not HP. HP always wanted you
to use their diagnostics to format the drive (plus, Access can format a pack
all by itself).
Question: How are the 7905 and 7906 discs you are
using formatted?
The 7905/06 drives can be formatted with quite a few different
utilities,
most notably either the 13037/790x diagnostic, or via Access itself.
John
*** When replying to this message, please do not delete these ***
*** signature lines. Otakon Katsucon HP3000-L @classiccmp.org ***
4:07 p.m.
sluth was for the hp 3000 and came with the opp sys as I remember.....
I have seen mention of a program called SLUTH for disc drives, but my
impression was that it was a 3rd party program, not HP. HP always wanted you
to use their diagnostics to format the drive (plus, Access can format a pack
all by itself
----- Original Message -----
From: "Jay West" <jwest(a)classiccmp.org>
To: "General Discussion: On-Topic and Off-Topic Posts"
<cctalk(a)classiccmp.org>
Sent: Friday, January 23, 2004 9:24 PM
Subject: Re: FW: HP2000/Access - benchmarks
August,
Access
you
Yes, GMU had
an HP 2000 ACCESS system with 21MX-E processors,
Are you sure it was 21MX-E and not 21MX-M? Just curious!
7920 disc (50
MB of which the ACCESS operating system could only address the first 33
MB), 32K WORDS of RAM in each processor, 32 MUX ports, SYNC card (for
RJE),
7970 1600 BPI tape, and an HP 2640B terminal as
the console.
My full 2000/Access config is 2100A cpu w/32K, 2100S cpu w/32K, 7906 drive
(20mb, 15mb usable cause access sees it as a 7905), 7900A drive (10mb) 16
Mux ports, Sync card for RJE, 7970 1600 bpi tape, 2748b paper tape punch,
2895b paper tape reader, 7261 optical card reader, and 2610 printer :) The
7261 and 2610 haven't been refurbed yet though. I hope to switch from 2100
cpus to 21MX-E's at some point.
> I was the system manager for the GMU HP 2000 from its delivery in 1978 until I
left GMU in January, 1984
If you are ever in St. Louis, stop by and you can reminisce and boot up :)
used
I used the source code and manuals to
patch the ACCESS OS we used.
I have a whole list of patches for 2000E, mostly with regards to terminal
handling (accepting 80 column lines instead of 72 max), baud rates, etc.
Was the 21MX-E twice as fast? Three
times as fast? I can't say - too many years have gone by.
Remember, there are like three different kinds of memory you can put in an
E, each one up the line is a fair amount faster. So, how fast the E is
depends on which of those memory types is installed.
> If I remember correctly, a
> disc diagnostic/utility program (which I think was called SLUTH) was to configure
the drive.
I have seen mention of a program called SLUTH for disc drives, but my
impression was that it was a 3rd party program, not HP. HP always wanted to use their diagnostics to format the drive (plus,
Access can format a
pack
all by itself).
Question: How are the 7905 and 7906 discs you
are using formatted?
The 7905/06 drives can be formatted with quite a few different
utilities,
most notably either the 13037/790x diagnostic, or via Access itself.
John
*** When replying to this message, please do not delete these ***
*** signature lines. Otakon Katsucon HP3000-L @classiccmp.org ***
25 Jan
25 Jan
12:20 p.m.
At 2004-01-23 11:24 PM, Jay West wrote:
Positive. There were two 21MX-E processors in our system.
Once or twice we had problems where HP would replace a process with a
"loaner" while they checked out a possible hardware problem. On those
occasions, they will replace the 21MX-E with a 2100 processor. I don't
believe that both processors were replaced, but only one. I can't remember
whether the temporary configuration was 21MX-E system processor and 2100
I/O processor, or 2100 I/O processor and 21MX-E processor.
In thinking about this a bit, I seem to remember us having an odd problem
with the 7920 on the HP 2000, and so the HP CE came in on a Saturday (we
didn't run production on our HP 3000 at the time), and he "borrowed" the
7920 from the HP 3000 and put it on the HP 2000 to see if it would exhibit
the same problem. As Ed Sharpe mentioned, SLUTH was for the HP 3000, and
what I probably remember was the CE using SLUTH to format the HP 3000's
7920 when he was done with the HP 2000 testing. The first few months we
had our HP 2000 ACCESS we had a variety of strange hardware problems, but
by the time the system was 6 or so months old, HP had found and fixed all
the problems.
John
*** When replying to this message, please do not delete these ***
*** signature lines. Otakon Katsucon HP3000-L @classiccmp.org ***
Yes, GMU had
an HP 2000 ACCESS system with 21MX-E processors,
Are you sure it was 21MX-E and not 21MX-M? Just curious! I was the system manager for the GMU HP 2000 from its
delivery in August,
I'd love to!
1978 until I left GMU in January, 1984
If you are ever in St. Louis, stop by and you can reminisce and boot Access
up :) If I remember
correctly, a
disc diagnostic/utility program (which I think was called SLUTH) was used
to configure the drive.
I have seen mention of a program called SLUTH for disc drives, but my
impression was that it was a 3rd party program, not HP. HP always wanted you
to use their diagnostics to format the drive (plus, Access can format a pack
all by itself).
7638
days inactive
7640
days old
3 comments
3 participants
participants (3)
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esharpe＠uswest.net -
john3000＠cox.net -
jwest＠classiccmp.org