> I really have no idea how expensive CA-MIM is, but if performance is

> not acceptable, you may want to consider it.  

No, MIM is not an option.

> With 4 systems in your ring, you are probably already pushing the limits.
That was my fear.

> I recall (years ago, before XCF) a client of mine adding a 3rd system to
> a GRS ring and the CA-1 scratch runs doubled in wall clock time due
> to catalog performance.

We have GRS via XCF. Catalogs traffic is what I fear the most. 
I'll see what the GRS says, before and after.

Thanks!

Walter Marguccio
z/OS Systems Programmer
BELENUS LOB Informatic 
GmbH
Munich - Germany




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