Discussion:
ODS-1 ACP for Alpha
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Alan Frisbie
2017-04-13 01:28:55 UTC
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Does an Alpha version of the ODS-1 ACP exist, either officially
or otherwise? If so, how can I get a copy?

Thanks,
Alan
Robert A. Brooks
2017-04-13 02:53:18 UTC
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Post by Alan Frisbie
Does an Alpha version of the ODS-1 ACP exist, either officially
or otherwise? If so, how can I get a copy?
None exists within VSI.
--
-- Rob
Bob Koehler
2017-04-13 14:17:13 UTC
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Post by Robert A. Brooks
Post by Alan Frisbie
Does an Alpha version of the ODS-1 ACP exist, either officially
or otherwise? If so, how can I get a copy?
None exists within VSI.
Do like IBM. Get a VAX.

The only way I can use ODS-1 now i to set up an LD container for
a very small drive on my VAX. ODS-1 won't habdle anything bigger
than several generations old.
Johnny Billquist
2017-05-07 12:58:33 UTC
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Post by Bob Koehler
Post by Robert A. Brooks
Post by Alan Frisbie
Does an Alpha version of the ODS-1 ACP exist, either officially
or otherwise? If so, how can I get a copy?
None exists within VSI.
How hard can it be? If the code exists for VAX... ;-)
Post by Bob Koehler
Do like IBM. Get a VAX.
The only way I can use ODS-1 now i to set up an LD container for
a very small drive on my VAX. ODS-1 won't habdle anything bigger
than several generations old.
Uh, is the VMS ODS-1 implementation trailing RSX by much? RSX can deal
with up to 8G drives. Anything larger just gets truncated, so you can
actually throw any size drive at it.

There are also hooks to actually use 32 bit LBNs in RSX, but I haven't
tried turning that on, so I don't know if it actually works.

All that said, one could also fire up RSX, Alan... ;-)

Johnny
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email: ***@softjar.se || Reading murder books
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Michael Moroney
2017-05-07 16:48:11 UTC
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Post by Johnny Billquist
Post by Bob Koehler
Post by Robert A. Brooks
Post by Alan Frisbie
Does an Alpha version of the ODS-1 ACP exist, either officially
or otherwise? If so, how can I get a copy?
None exists within VSI.
How hard can it be? If the code exists for VAX... ;-)
I once looked at that a long time ago. Much more complicated than I
thought it would be. Lots of ugly BLISS-32 code. Also, any macro code
was never put through the VAX-Alpha porting, which can get interesting.
Post by Johnny Billquist
Post by Bob Koehler
Do like IBM. Get a VAX.
The only way I can use ODS-1 now i to set up an LD container for
a very small drive on my VAX. ODS-1 won't habdle anything bigger
than several generations old.
Uh, is the VMS ODS-1 implementation trailing RSX by much? RSX can deal
with up to 8G drives. Anything larger just gets truncated, so you can
actually throw any size drive at it.
There are ODS-1 remnants in INIT and MOUNT, it appears that both
would complain about oversized disks if the code wasn't disabled.
Bob Gezelter
2017-04-13 16:13:04 UTC
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Post by Alan Frisbie
Does an Alpha version of the ODS-1 ACP exist, either officially
or otherwise? If so, how can I get a copy?
Thanks,
Alan
Alan,

The answer has always been "no".

The caveat more recently has been:

- Run one of the VAX emulators
- Run OpenVMS on simulated VAX
- Configure (possibly LD virtual disks) for the emulated environment
- Copy the files to an ODS-2/5 volume
- Access the ODS-2/5 volume from the Alpha

Hope the above is helpful.

- Bob Gezelter, http://www.rlgsc.com
Alan Frisbie
2017-04-14 01:39:51 UTC
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Post by Bob Gezelter
- Run one of the VAX emulators
- Run OpenVMS on simulated VAX
- Configure (possibly LD virtual disks) for the emulated environment
- Copy the files to an ODS-2/5 volume
- Access the ODS-2/5 volume from the Alpha
Hope the above is helpful.
Like the vast majority of your answers, not at all.

Those steps are totally obvious to the most casual observer.
The goal was to eliminate one of them.
t***@glaver.org
2017-04-14 03:18:06 UTC
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Post by Alan Frisbie
Those steps are totally obvious to the most casual observer.
The goal was to eliminate one of them.
Will $ EXCHANGE MOUNT/VIRTUAL do anything useful?
Stephen Hoffman
2017-04-15 22:38:00 UTC
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Does an Alpha version of the ODS-1 ACP exist, either officially or
otherwise? If so, how can I get a copy?
DEC never brought ODS-1 support or tooling past OpenVMS VAX.

Get the OpenVMS source listings and figure out how to build it (and I
don't recall anybody in ZKO even looking at this, either; not past the
decision not to port), or fetch one of the open-source ODS readers for
another platform (one or two were on the OpenVMS Freeware) and start
with that.

Or port the PDP-11 or whatever source of this data forward from ODS-1
to something with more current support. See if whatever PDP-11 box
involved here can generate something that EXCHANGE or some other file
system or tool available for OpenVMS can deal with, for instance.
EXCHANGE does RT-11, FILES11 (which won't help here), or DEC's DOS-11
format. The /VIRTUAL support also won't help here, AFAIK.

XMODEM/YMODEM or ZMODEM or whatever the data across a serial or network
connection.

Maybe start to replace the data source environment with hardware and
software from the post-PDP era? That'll be more disruptive short term,
but better long-term as these problems only accrete.

Or write some OpenVMS glue code for whatever you're up to here.
Scripting a SIMH launch and boot, at al. That's the usual approach,
after all: more glue code, longer chains of dependencies. complexity.
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