I was not advocating having a z/OS DISPLAY command over monitor/reporting in RMF. Some of the information is monitored by RMF today and RMF will enhance their support to report the number of available large pages. I think there is also value in having a quick and handy z/OS command that will give you the current large page utilization statistics.
Elpida Tzortzatos phone: (845) 435-3125 email: elp...@us.ibm.com On Mon, 16 Aug 2010 11:38:10 -0700, Norman Hollander on DesertWiz <norman.hollan...@desertwiz.biz> wrote: >IMHO- needs to be in RMF and/or monitor. DISPLAY commands are not good for >being proactive. > >zNorman > >-----Original Message----- >From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On Behalf >Of Michael Wickman >Sent: Monday, August 16, 2010 Monday 11:05 AM >To: IBM-MAIN@bama.ua.edu >Subject: Re: Anyone Using z10 Large Pages in anger > >Sounds like a future health check item. > > > >-----Original Message----- >From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On Behalf >Of Elpida Tzortzatos. >Sent: Monday, August 16, 2010 12:52 PM >To: IBM-MAIN@bama.ua.edu >Subject: Re: [IBM-MAIN] Anyone Using z10 Large Pages in anger > >I am working with RMF to open an APAR that would provide at least some of >the information you described below. In addition I am looking at providing a >z/OS DISPLAY command to report on the LFAREA size, amount used, amount >available, and how much has been converted to 4K. A high water mark of large >page usage can also be reported. > >Elpida Tzortzatos >Phone: (845) 435-3125 >email: elp...@us.ibm.com > >On Mon, 16 Aug 2010 13:19:52 EDT, Ed Finnell <efinnel...@aol.com> wrote: > >> >>In a message dated 8/16/2010 12:09:08 P.M. Central Daylight Time, >>elp...@us.ibm.com writes: >> >>On the flip side of the coin if you under specify the LFAREA size you >>may be giving up some large page performance benefits. >> >>DOC APAR OA34024 has been opened to provide some guidance on how to >>size the LFAREA. >> >> >>>> >>Sure would be nice if there were tuning knobs available from RMF. >>Maybe Large Page used, high water marks, Large pages converted to 4k, >>etc... I'm sure there are more. Maybe the tuning gurus can suggest >>more. >> >> >> >> >>---------------------------------------------------------------------- >>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 > >---------------------------------------------------------------------- >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 > > > > > ><font size="1"> ><div style='border:none;border-bottom:double windowtext 2.25pt;padding:0in >0in 1.0pt 0in'> </div> "This email is intended to be reviewed by only the >intended recipient and may contain information that is privileged and/or >confidential. > If you are not the intended recipient, you are hereby notified that any >review, use, dissemination, disclosure or copying of this email and its >attachments, if any, is strictly prohibited. If you have received this >email in error, please immediately notify the sender by return email and >delete this email from your system." ></font> > >---------------------------------------------------------------------- >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 > >---------------------------------------------------------------------- >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 ---------------------------------------------------------------------- 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
