On 10 Mar 2012 00:51:45 -0800, in bit.listserv.ibm-main you wrote:

>Ron MacRae writes:
>>I've got a REXX exec that sets up an IPCS environment for z/OS levels
>>other than my current release.... With this REXX exec I can select a
>>version of IPCS modules/panels/.... for every release of z/OS from 2.10
>>up to 1.13.
>
>Bearing in mind that I do not speak for IBM, I'd like to caution you on
>something here. It's one critically important distinction between what's
>technically possible and what's actually permissible, at least financially
>speaking.
>
>The "2.10" you mention is not z/OS, it's OS/390 (V2R10). That's a different
>product, also licensed.
>
>As background, when IBM introduced z/OS almost 12 years ago IBM also
>introduced sub-capacity licensing for z/OS and for practically all IBM
>software products for z/OS, including CICS, IMS, DB2, MQ, and many others.
>However, there are a very few prerequisites that customers are required to
>implement before enjoying sub-capacity licensing. One highly relevant and
>very well publicized requirement is that you must stop running all OS/390
>on your machine(s). That was (and is) part of the deal.
>
>OK, by now you see the potential problem. If you're running OS/390 V2R10's
>IPCS, you haven't stopped running OS/390 on your machine. Which means you
>wouldn't be eligible for sub-capacity licensing.

If I am using IPCS 2.10 under z/OS to read dumps submitted from
another location, am I running OS390?  I assume that modules compiled
and linked with system routines from that or prior eras don't violate
T&C.

Clark Morris 
>
>Be very, very careful here, folks. There are only a few simple rules.
>Follow them, please.
>
>--------------------------------------------------------------------------------------------------------
>Timothy Sipples
>Resident Enterprise Architect (Based in Singapore)
>E-Mail: [email protected]
>

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