A concern? Yes. A big concern? No. Your determination of free space should include your expected (or observed) insert activity, the initial population, and the distribution of new records. That said, I wouldn't spend a lot of time on the estimates.
My $0.02 -----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of Barry Jones Sent: Tuesday, November 10, 2009 6:54 AM To: [email protected] Subject: VSAM CA Splits, still a performance problem? Hello, In the old days,CA splits were quite detrimental to performance of VSAM applications. In today's world with lots of cache in modern DASD systems, are CA splits still a concern? Or should I just allocate KSDSs with FREESPC(00 00) and save the space? All thought appreciated. Barry. ---------------------------------------------------------------------- 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 NOTICE: This electronic mail message and any files transmitted with it are intended exclusively for the individual or entity to which it is addressed. The message, together with any attachment, may contain confidential and/or privileged information. Any unauthorized review, use, printing, saving, copying, disclosure or distribution is strictly prohibited. If you have received this message in error, please immediately advise the sender by reply email and delete all copies. ---------------------------------------------------------------------- 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
