On Thursday, 11/01/2007 at 10:42 EDT, Pieter Harder
<[EMAIL PROTECTED]> wrote:

> I am confused. The helpinfo for DEFINE CPU suggests the old prohibition
on
> mixing CPs and IFLs in one lpar still holds. But apar VM64304 (
>
https://www-304.ibm.com/jct03004c/ibmlink/sis/viewAparDocLink.wss?documentId=VM6
> 4304&amp;lc=nl&amp;cc=NL ) implies it is possible to mix CPs and IFLs.
While
> still cumbersome due to the lack of a cpu type on the CPU directory
statement
> it would theoretically be possible to combine IFL only and CP only lpars
into
> one mixed lpar. Does anyone know anything definite on this?

You cannot mix IFLs and CPs in a partition, not even in theory.  The APAR
says that the output of QUERY PROC is *incorrect* when it shows a
combination of IFLs and CPs.

In a "Linux-only" partition, only z/VM and Linux will run.  A Linux-only
partition may have CPs XOR IFLs.  Not both.  And, no, z/OS will not run in
a Linux-only partition, even if you define it to contain CPs.

In a non-Linux-only partition, the rules change.  You can have CPs with
zIIPs and zAAPs, ICFs, or IFLs.  Pick one.  Of course, only z/VM and Linux
can run on the IFL.

Hope this helps.

Alan Altmark
z/VM Development
IBM Endicott

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