I'm confused. I want to turn on buffer beyond close (for PDSE1) now that **most of the bugs are hopefully worked out and ISV software should be set (I recall some issues back at z/OS 1.6 when this was introduced). I was forced to test this some weeks back as a work around to problem on one of our z/OS 1.9 systems (see HIPER APAR OA25618 - PTFs available 07/17/08).
(** Most, not all... see recent DFSMSdss APAR OA21934) However, since OA11068 the default HSP_SIZE is 0 due to high CPU. So if HSP_SIZE is 0, is there any benefit to buffer beyond close? Is just directory data cached? Some of my systems still have PDSE1_HSP_SIZE(256) coded (now overriding the default of 0) from our 1.6 implementation, but we haven't seen the high CPU issue described by OA11068 (as far as I know). Mark -- Mark Zelden Sr. Software and Systems Architect - z/OS Team Lead Zurich North America / Farmers Insurance Group - ZFUS G-ITO mailto:[EMAIL PROTECTED] z/OS Systems Programming expert at http://expertanswercenter.techtarget.com/ Mark's MVS Utilities: http://home.flash.net/~mzelden/mvsutil.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

