>On Fri, 23 Jan 2009 08:42:16 -0800, Donnelly, John P ><[email protected]> 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. >
Oh... if you were just asking about ERV, then you may want to set that higher. Again, search the archives. There has been some disagreement as to how high (for example, Cheryl Watson may have recommended one thing and Kathy Walsh another IIRC). I think some were setting it as high as 20000. I have ours set at 5000. 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
