IIRC  The act of splitting is relatively expensive due to all of the stuff that 
has to happen. But afterward, it is no issue.   

A reorg to consolidate CI's and open up the free space is sometimes a good 
idea. As usual YMMV. 


-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of 
Ted MacNEIL
Sent: Friday, April 03, 2009 1:47 PM
To: [email protected]
Subject: Re: CA and CI splits

>In a extended  VSAM  file using SMS, will the presence of 35K CI splits and 5K 
>ca splits affect performance?

>This dataset has only one stripe. I know that in the old days of real 3390's 
>this might have been a factor, but how about today where real 3390's are not 
>used?

Read the RedBook "VSAM De-Mystified".

Splits were never really a problem, and even less of one, today.

-
Too busy driving to stop for gas!

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