David,

Given that you must have synchronous remote copy running against your
SORTWKnn datasets I absolutely agree. Having to Remote Copy your SORTWKnn
datasets so that Hiperswap will operate will degrade performance many
magnitudes greater than turning CFW off in the controller.

Ron

> -----Original Message-----
> From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On
> Behalf Of David Betten
> Sent: Friday, 24 February 2006 11:22 PM
> To: [email protected]
> Subject: Re: CFW and DFSORT
> 
> I apologize, my earlier append was not clear. DFSORT does check and if CFW
> is not active in the controller, then the CFW bit is not turned on. Also,
> I
> would agree that there is a performance benefit of using CFW since you
> eliminate the need to write to the NVS. But I have seen many customers
> running effectively with CFW=NO. So if you're looking for the high
> availability of a GDPS environment and Hyperswap, I don't think disabling
> CFW is going to be a show stopper.
> 
> 
> Have a nice day,
> Dave Betten
> DFSORT Development, Performance Lead
> IBM Corporation
> email:  [EMAIL PROTECTED]
> DFSORT/MVSontheweb at http://www.ibm.com/storage/dfsort/
> 
> IBM Mainframe Discussion List <[email protected]> wrote on 02/24/2006
> 12:16:15 AM:
> 

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