This group is for all folks running the original IBM VM/370 Release 6 operating system (or later (e.g. VMTCE (Community Edition)) on Hercules. Like the other early IBM operating systems this version has always been in the public domain and so can be freely distributed. The base version as supplied by IBM is lacking in many facilities. IBM solved this by providing additional extension products which were licensed and so are not available. There are however many user enhancements available which can be installed. In addition, in order to get users up and running quickly updated "releases" of VM/370 included the most popular updates are available for download, so novices can start to learn VM without having to delve into the system internals. It is intended that this wiki will provide information on the base release and these updates.
The available versions are here :-
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Re: VM/ESA 370 (was Re: VM/370 new thrilling experience)
In the late 90s I "ran" a shop where we had VM/SP 6 running on a 4381(P02?) as it had an AP, so that was configured in CP. It was the late 90s, I was itching to get out of that shop as the environment
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Mark A. Stevens
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#6305
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Re: VM/ESA 370 (was Re: VM/370 new thrilling experience)
On Tue, 12 Nov 2024 at 11:36, Drew Derbyshire via groups.io <swhobbit=
[email protected]> wrote:
[...]
> On Mon, Nov 11, 2024 at 12:41 AM, William Denton wrote:
>
> when did DMK become HCP?
>
>
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Tony Harminc
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#6304
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Re: VM/ESA 370 (was Re: VM/370 new thrilling experience)
*NOTE:* Personally, I was fat, dumb, & happy on S/370 hardware until late 1987, which was well into the VM/XA SF era. What follows are what I recall from casual conversations with people shortly after
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Drew Derbyshire
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#6303
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Re: VM/ESA 370 (was Re: VM/370 new thrilling experience)
Whilst this is true, and you may find some of my rants about it in the vmshare archives at http://vm.marist.edu/~vmshare/, in practice for much of CP the source code wasn't of use. Lots of the CP
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Dave Wade
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#6302
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Re: VM/ESA 370 (was Re: VM/370 new thrilling experience)
One of the main things I really remember about the DMK-->HCP transition was that IBM abandoned the whole notion of source code maintenance. HCP started to have OCO modules!!! Up until that point, even
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William Denton
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#6301
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Re: VM/ESA 370 (was Re: VM/370 new thrilling experience)
Hi, Tony,
What I recall is, IBM PokLabs was trying hard to "kill off" the whole VM product line around that time.
What I heard is this:
Fortunately, Tom Watson Jr. was smart enough to realize what
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Mark Waterbury
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#6300
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Re: VM/ESA 370 (was Re: VM/370 new thrilling experience)
[email protected]> wrote:
The first appearance outside IBM of a CP that ran on an XA machine was the
VM/XA Migration Aid, sometimes called XA/MA or XAMA, announced in 1981 (the
same year as HPO for
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Tony Harminc
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#6299
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Re: VM/ESA 370 (was Re: VM/370 new thrilling experience)
VM/HPO as all DMK.
HCP was for VM/XA and its follow-up, VM/ESA (the real one), z/VM.
--
Kris Buelens
By
kris.buelens@...
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#6298
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Re: VM/ESA 370 (was Re: VM/370 new thrilling experience)
Interesting, because VM/ESA 370 is still DMK. That says it's not HPO like I
was told it was. Not that I have any hardware on which it would make a
difference...
[email protected]> wrote:
--
Jay
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Jay Maynard
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#6297
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Re: VM/ESA 370 (was Re: VM/370 new thrilling experience)
"when did DMK become HCP?"
HCP started as the prefix for the High Performance Option (HPO) for VM/SP. The HCP code was a 1-to-1 replacement for the SP DMK code.
Kind regards,
Gary
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gdblodgett
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#6296
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Re: VM/ESA 370 (was Re: VM/370 new thrilling experience)
It would be when the short lived VM/XA appeared. Its been a while but doesn't VM/ESA 370 feature still have DMK CP Modules.
So 370 mode == DMK,
XA/ESA/Z == HCP
Dave
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Dave Wade
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#6295
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Re: VM/ESA 370 (was Re: VM/370 new thrilling experience)
So, thinking back a ways... I ran a large VM shop from /370 r3, SEPP, SP, HPO, and maybe one more after that before the bank decided that MVS (yuk) was the way to go...
I am trying to remember...
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William Denton
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#6294
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Re: VM/ESA 370 (was Re: VM/370 new thrilling experience)
I found this detailed summary of the history and evolution of various features throughout the lifetime of VM/ESA:
https://www.vm.ibm.com/techinfo/vmfblank.html
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Mark Waterbury
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#6293
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Re: VM/370 new thrilling experience
#VMCE
Thank you Ross! REGEQU worked like a charm, i didn't need to do anything,
being logged in as CMSUSER, to get the macro compiled correctly.
Now i'm looking at some video that promise to be
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Lucio
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#6292
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Re: VM/ESA 370 (was Re: VM/370 new thrilling experience)
My understanding, from back then, was that VM/ESA 1.0 (so-called "370 edition") was a "mid-life kicker" to keep VM/SP and HPO customers happy, and allow them to migrate to VM/ESA, taking advantage of
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Mark Waterbury
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#6291
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Re: VM/ESA 370 (was Re: VM/370 new thrilling experience)
Well as it was not VM/SP it had a new licence, so extracted money from those still on 370-only machines.
It had the bi-modal capable CMS so it broke quite a few applications, but it didn't actually
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Dave Wade
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#6290
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Re: VM/ESA 370 (was Re: VM/370 new thrilling experience)
As I understand it, VM/ESA 370 Feature v1 was effectively VM/SP HPO release
7. I think they renamed it to assuage concerns about how long VM/ESA was
taking, or something.
[email protected]>
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Jay Maynard
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#6289
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VM/ESA 370 (was Re: VM/370 new thrilling experience)
I never did understand why they came up with that oxymoron of a name for VM/SP.? What DID it have?
Did it even include VM/SP HPO?
-ahd-
¡ª
Drew Derbyshire
Software Hobbit (SRE Emeritus)
Kendra
By
Drew Derbyshire
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#6288
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Re: VM/370 new thrilling experience
#VMCE
Actually, VSE/ESA version 1, like VM/ESA 370 Feature, had an ESA name but
ran on 370. Even that probably wouldn't run on VM/CE, and wouldn't be
licensed anyway.
[email protected]> wrote:
--
Jay
By
Jay Maynard
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#6287
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Re: VM/370 new thrilling experience
#VMCE
[email protected]> wrote:
Yes: REGEQU. You can instruct the assembler how to find it by the GLOBAL
MACLIB CMSLIB command.
2. Is it possible to run VSE/ESA under VM/370?
>
No. VSE/ESA will not
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Ross Patterson
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#6286
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