Locus Computing Corporation had a substantial Unix on 370 effort in the
1980s.
My impression/understanding was that the LCC kernel was derived from
4.1BSD and close to the metal when running on the 370.
The LCC work became AIX/370 & AIX PS/2 with the Locus distributed system
technology named TCF (transparent computing facility).
As far as I know, the LCC work that became AIX/370 was the only version
of Unix for the 370 officially supported by IBM.
On 12/19/2022 3:36 PM, Marc Donner wrote:
There was a track of USENIX 1986 called "UNIX on
Big Iron." Peter Capek
of IBM was the chair and Gene Miya and Jim Lipkis rounded out the
program committee. The proceedings are available.
Program included:
* User Requirements for Future-nix - Gene Miya
* Experience with Large Applications on UNIX - Bob Bilyeu
* UNIX Scheduling for Large Systems - Jeffrey Straathof, Ashok
Thareja, Ashok Agrawal
* A Straightforward Implementation of a 4.2BSD on a High Performance
Multiprocessor - Dave Probert
* Porting UNIX to the System/370 Extended Architecture - Joseph R Eykholt
* Full Duplex Support for Mainframes - Don Sterk
* Concentrix -- A UNIX for the Alliant Multiprocessor - Jack Test
* A User-Tunable Multiprocessor Schedule - Herb Jacobs
* Considerations for Massively Parallel UNIX Systems on the NYU
Ultracomputer and the IBM RP3 - Jan Edler, Alan Jottlieb, Jim Lipkis
* UNIX of CTSS for the Cray-1, Cray X-MP, and Cray-2 Supercomputers -
Karl Auerbach, Robin O'Neill
* Experience Porting System V to the Cray 2 - Tim Hoel
=====
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On Mon, Dec 19, 2022 at 12:38 PM Phil Budne <phil(a)ultimate.com
<mailto:phil@ultimate.com>> wrote:
The October 1984 BSTJ article by Felton, Miller and Milner
https://www.bell-labs.com/usr/dmr/www/otherports/ibm.pdf
<https://www.bell-labs.com/usr/dmr/www/otherports/ibm.pdf>
Describes an AT&T port of UNIX to System/370 using TSS/370
underpinnings as the "Resident System Supervisor" and used as the 5ESS
switching system development environment.
I also found mention at
http://www.columbia.edu/~rh120/ch106.x09
<http://www.columbia.edu/~rh120/ch106.x09>
chapter 9 of
http://www.columbia.edu/~rh120/
<http://www.columbia.edu/~rh120/> with footnote 96:
Ian Johnstone, who had been the tutor at University of New
South Wales working with Professor John Lions, was one of the
researchers invited to Bell Labs. He managed the completion at
AT&T Bell Labs of the port of Unix to the IBM 370 computer. See
"Unix on Big Iron" by Ian Johnstone and Steve Rosenthal, UNIX
Review, October, 1984, p. 26. Johnstone also led the group
that did
the port to the AT&T 2B20A multiprocessor system.
I found
https://ia902801.us.archive.org/3/items/Unix_Review_1984_Oct.pdf/Unix_Revie…
<https://ia902801.us.archive.org/3/items/Unix_Review_1984_Oct.pdf/Unix_Review_1984_Oct.pdf>
"BIG UNIX: The Whys and Wherefores" (pdf p.24), which only offers
rationale.
Also:
"IBM's own involvement in Unix can be dated to 1979, when it
assisted Bell Labs in doing its own Unix port to the 370 (to
be used as a build host for the 5ESS switch's software). In
the process, IBM made modifications to the TSS/370 hypervisor
to better support Unix.[12]"
at
https://en.wikipedia.org/wiki/IBM_AIX#cite_ref-att-s370-unix_12-0
<https://en.wikipedia.org/wiki/IBM_AIX#cite_ref-att-s370-unix_12-0>
Is there any other surviving documentation about the system?
Any recall of what branch of AT&T UNIX it was based on?
Thanks!
Phil
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