Paul Gilmartin wrote:
On Mon, 24 Mar 2014 10:58:28 -0400, John Eells wrote:
All this means is that z/OS V1.12 includes the necessary levels of
utilities (such as SMP/E, IEBCOPY, and the Binder) needed to install
COBOL 5.1. It's not terribly unusual for the "driving system," or
installation product level, requirements to be lower than the levels
required to actually *run* a product.
If that weren't the case, it would never be possible to upgrade.
If that weren't the case for operating system upgrades the process would
be different, but it would still be quite possible. It would likely
involve a "starter system" for every upgrade (akin to the Customized
Offerings Driver), some sort of bootstrapping process that involved a
standalone IPLable installer (as is common for some other platforms), or
something else I'm not thinking of off the top of my head.
For something like COBOL, which was the topic of this thread, it might
simply cause a delay when one of the driving system requirements happens
to be a minimum z/OS level higher than the one you're running. That
would require you to upgrade z/OS first, before COBOL, rather than doing
it the other way around. That might slow things down...or not.
--
John Eells
z/OS Technical Marketing
IBM Poughkeepsie
[email protected]
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