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: Writing / reading text files with tapes
Content-type: text/plain; charset=UTF-8 Content-transfer-encoding: 8BIT I think the problem with tape dump files is either they are specific to a version of CMS or they are specific to a disk
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Peter Coghlan
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#253
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Re: Writing / reading text files with tapes
Yes. There are some programs to around to take CMS ¡°tape dump¡± files and extract the files Dave Sent: 31 January 2020 19:58 To: [email protected] Subject: Re: [h390-vm] Writing / reading text
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Dave Wade
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#252
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Re: Writing / reading text files with tapes
Thanks Scott ... Looking at the manual, am I right in thinking these only work in the direction pc to host?
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adriansutherland67
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#251
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Re: Writing / reading text files with tapes
Have you explored OMA tapes?? Never tried them under VM, but they work under MVS. ScottC
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ScottC
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#250
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Writing / reading text files with tapes
Before I go down the route of punching files etc. is there a simple tool to read and add ASCII files, at the pc end, to tapes, covering to ebcdic and so on. I have looked but can't find much although
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adriansutherland67
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#249
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Re: VM/370 Hercules Optimisation
Gregg Its an add-on so it is only in the "n--packs" The source is on the Waterloo tape. It may need tweaking as it was originally written on sepp/bsepp. Dave
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Dave Wade
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#248
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Re: VM/370 Hercules Optimisation
Hello! It does? Then why did I get this from a DIAL CPWATCH command string on the original one, DIAL CPWATCH DMKDIA045E CPWATCH NOT LOGGED ON IND from the console not the 3270 shows what it is doing,
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Gregg Levine
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#247
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Re: VM/370 Hercules Optimisation
Clarkson went the other direction, we started with the student users on MUSIC 4.0 in 1980.? When I returned in 1985, they had all but shutdown MUSIC and moved everyone to CMS.? Then, after I left
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Drew Derbyshire
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#246
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Re: VM/370 Hercules Optimisation
Le jeu. 30 janv. 2020 ¨¤ 18:44, Bob Polmanter <wably@...> a ¨¦crit : The bane of my existence was a statistical product called SAS, which for us > ran under CMS. The mathematicians and
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Ren¨¦ Ferland
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#245
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Re: VM/370 Hercules Optimisation
Dave, We did not have the SAS C compiler, thankfully.? I did come across it later in my career but fortunately for me it wasn't something I had to deal with. Regards, Bob
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Bob Polmanter
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#244
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Re: VM/370 Hercules Optimisation
Bob, You have just given me nightmares! Did you have the SAS ¡°C¡± compiler as well! Mind you we had Oracle as well but thankfully no MVS¡ .. but it could be worse VM was great compared to VAX/VMS
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Dave Wade
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#243
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Re: VM/370 Hercules Optimisation
Dave, I understand. System performance became something of a career thing for me back in the day.? We did run MVS as a guest under VM/SP HPO in a production environment on a 16MB 4381, and as the
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Bob Polmanter
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#242
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Re: VM/370 Hercules Optimisation
Bob, I said ¡°can fall of¡±! Of course in our situation , running 360 and 370 operating systems with typically a trivial workload on hardware that out performs anything that the original software
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Dave Wade
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#241
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Re: VM/370 Hercules Optimisation
Our Amdahl didn't have any assists unfortunately (and we used to get a whole lot of grief with mail coming in over the EARN link from Rutherford with reversed domain addresses...) It could move
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Peter Coghlan
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#240
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Re: VM/370 Hercules Optimisation
The S/158 processor could run as a channel or CP as well.? In fact, the 3033 used 158 engines running in pure channel mode under the covers. https://en.wikipedia.org/wiki/IBM_303X
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Drew Derbyshire
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#239
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Re: VM/370 Hercules Optimisation
I run MVS as a guest of VM.? In fact that is the only way I run it.? It runs great, and I am not sure why there is so much misinformation about the 'negative aspects' of running this way.? To be
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Bob Polmanter
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#238
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Re: VM/370 Hercules Optimisation
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Dave Wade
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#237
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Re: VM/370 Hercules Optimisation
My experience was that MUSIC performed really well under VM provided it had enough memory and even better still if it was locked in storage. It was possible to support over a hundred users on MUSIC
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Peter Coghlan
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#236
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Re: VM/370 Hercules Optimisation
Steven, I think it was Joe who mentioned the assists. To be honest while I think for CMS, VM is the ¡°bees knees¡±, when you try to run MVS in a VM the wheels can fall off the car because of the
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Dave Wade
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#235
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Re: VM/370 Hercules Optimisation
Probably overthinking! It sounds like at best we are talking about marginal differences. Anyway I have my Dockerfile working so I will try some speed tests with different configs over the weekend.
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adriansutherland67
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#234
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