On Fri, 23 Jan 2009 08:42:16 -0800, Donnelly, John P <john.p.donne...@nsc.com> wrote:
>Implemented z/OS V1R9 from z/OS V1R7 with IBM default IEAOPT00: (ERV=500). > >Considering setting IEAOPTxx from z/OS V1R7 system into z/OS V1R9 system: > >INITIMP=0, /* WLM INITIATOR DISPATCH PRIO SETTING */ >CCCSIGUR=45, /* MEAN-TIME-TO-WAIT (DEFAULT) */ >CNTCLIST=NO, /* CLIST SINGLE TRANS ? (DEFAULT) */ >CPENABLE=(0,0), /* I/O ENABLE (DEFAULT) */ >DVIO=NO, /* DIRECTED VIO ? */ >ERV=500, /* ENQUEUE RESIDENCE VALUE (DEFAULT) */ >ESCTSWTC(2)=350, /* EXPANDED STORAGE CRITERIA FOR TSO */ >ESCTSWWS(2)=350, /* EXPANDED STORAGE CRITERIA FOR TSO */ >LSCTMTE=(1,15), /* THINK TIME -- LOGICAL SWAP */ >RCCCPUT=(105,128), /* CPU UTILIZATION (FILL 'ER UP GAZ 9/22*/ >RCCUICT=(2,4) /* UIC THRESHOLD (DEFAULT) */ >RMPTTOM=4000 /* DEFAULT IS 1000 REPORTS AS (18432) */ > >Comments are most welcome. Did you try looking at the init & tuning guide at all? Many of these are obsolete. No more expanded storage. Those parms are obsolete since you've been running 64-bit (perhaps as early as OS/390 2.10 ). Certainly gone with the ability to run 31-bit after z/OS 1.4. Lose 'em. LSCTMTE - obsolete (since 1.8) - lose it. CCCSIGUR - obsolete since goal mode, lose it. RCCCPUT - obsolete since goal mode, lose it. RCCUICT - obsolete (since 1.8), lose it. RMPTTOM - the only place I use a non-default is my sandbox. There was a reason to set it for a while on "fast" boxes (z990 perhaps, z9), but IBM made some changes. There have been past discussions on this. Search the archives. -- Mark Zelden Sr. Software and Systems Architect - z/OS Team Lead Zurich North America / Farmers Insurance Group - ZFUS G-ITO mailto:mark.zel...@zurichna.com 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 lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
