A Coupling Facility which is an ICF is just as functional as an external
CF. The biggest consideration for an ICF is failure isolation. You
need to understand which structures are used by which data sharing
members. You may need an external CF or to use system managed structure
duplexing to insure you don't lose the only copy of a structure and the
data sharing members using it at the same time. The benefit of an ICF
is that it gets upgraded free. We had an ICF configured on a previous
2064 and 2084 both upgraded to 2094 got a lot faster without having to
buy that ICF again.
Best Regards,
Sam Knutson, GEICO
Performance and Availability Management
mailto:[EMAIL PROTECTED]
(office) 301.986.3574
"Think big, act bold, start simple, grow fast..."
-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On
Behalf Of Chase, John
Sent: Monday, July 10, 2006 8:21 AM
To: IBM-MAIN@BAMA.UA.EDU
Subject: Re: One sysplex across two z/800???
> -----Original Message-----
> From: IBM Mainframe Discussion List On Behalf Of Gibney, Dave
>
> I believe the answer is no, you can't use ICF (Internal Coupling
> Facility) to connect any two CECs.
Works fine between our two Amdahl (G5) machines. We're installing a
pair of z9s; does this mean we won't be able to do Parallel Sysplex any
more?
-jc-
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