Lizette,

As Scott mentioned, when running in star mode, you may see a CPU spike on
the GRS contention notifying system (CNS) when there is a resource
contention in the sysplex and the CNS has to issue ENF 51.

Try checking whether the system you noticed the CPU spike on is the CNS
using a D GRS command.

If it is in fact the CNS, you may choose to assign the role a CNS to a
different system in the sysplex. You can do that using the SETGRS CNS=
command (introduced in z/OS V1R8 i believe).

Gil.


On 10/12/07, Lizette Koehler <[EMAIL PROTECTED]> wrote:
>
> We are STAR with 5 LPARS (2 Prod/2 Devl/1 Sysprog)
>
> 2 Physical boxes, and one ICF on each box.
>
> One is a z9 (3 engines)  and the other a z890 (3 engines).
>
> z9   has 3 LPARs, 1 Prod, 1 Devl, 1 Sysprog
> z890 has 2 LPARS, 1 Prod, 1 Devl
>
>
> Lizette

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