Www-3.ibm.com/systems/z/os/support/zos_server.htm 

Shows the z990 as the newest processor to support OS/390 2.10. 

HTH,

Linda

Sent from my iPhone

On Sep 25, 2015, at 5:16 AM, Peter Relson <[email protected]> wrote:

>> The earliest version of MVS (sic) that is advertised 
>> to support ARCHLVL=2 is z/OS 1.6
> 
> Not true. z/OS 1.6 is the earliest release to require z/Architecture 
> (i.e., ARCHLVL=2).
> OS/390 R10 introduced ARCHLVL=2 as an option.
> 
>> IEA304W SYSTEM WAIT STATE CODE 80009064 DURING IEAVNPF5 INITIALIZATION
> 
> As documented, this wait state code indicates that a program check 
> occurred.
> 
> If you were to ask anyone "a program check occurred, what went wrong?" 
> they'd ask for more information. As would we.
> What program check? Where? As documented there might be a message in the 
> wait state message area.
> A standalone dump would usually be needed to make much progress.
> 
> Was OS/390 R10 even a release for which z10 support was provided? have no 
> idea.
> 
> Peter Relson
> z/OS Core Technology Design
> 
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