CI and CA splits are no longer an issue from a performance perspective. Yes, there is some degradation during the split, but with today's technology of DASD, the hit cannot be truly measured. What you want to understand is not the individual splits, but the frequency of the splits.
Michael Spencer BMC Software -----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of Ted MacNEIL Sent: Friday, April 03, 2009 2:47 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! ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
