Brian W wrote:
<snip>
So is IBM definitely dropping support for the z13s BEFORE z/OS 3.1 is 
officially out?  If not, then it should be supported by z/OS 3.1. . .
</snip>

The conclusion expressed after the "If not" is not warranted.

Dropping of support for a machine is unrelated to what machine an operating 
system release might require (I do not have any knowledge of whether/when 
support is being dropped for z13s). And of course withdrawal from marketing is 
unrelated to dropping of support (aside from the fact that the former generally 
precedes the latter).

z/OS 3.1 requires z14 functions. It cannot be IPL'ed on a z13 of any flavor.

Peter Relson
z/OS Core Technology Design.


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