On Wed, 24 May 2006 00:00:00 GMT, Ted MacNEIL <[EMAIL PROTECTED]> wrote:
>>I can construct WLM goals to achieve the results I want *MUCH* better on a ring of monoplexes than I can on a (non-homogeneous) parallel sysplex. > > >I've been using WLM since January 1999, and I have never had a homogeneous plex. >Nor, have I had all the problems that everybody is talking about. >These are 3-4000 MIPS plex's, with IMS, DB2, CICS, TSO, MQ & Batch. > Pretty much the same here, but I have used response goals for CICS and DDF and many times I have had DB2 regions in SYSSTC (no goal) or different velocities by LPARs since that was allowed in OS/390 2.10. The problem has been batch. I've handled that by classifying by JES2 MAS at times (again, since OS/390 R10 for systems in the same sysplex with their own spools) but that has only helped me on a few occasions. Even now I have all z9s but one z900 as a penalty box to runs a certain unnamed software package that charges up the you know what. Of course the production jobs on the z900 don't achieve the velocity they do on the z9 LPARs in the plex, but I have the velocity low enough where goals are met. Most of the batch runs at night when there is exta cycles anyway (the z900 LPAR only runs batch for the most part, not CICS/DB2/IMS). I admit I have never tried percentile goals for batch as Tom suggested, but I'm not sure what benefit I would get from specifying an unagressive response goal versus an unagressive velocity goal. I can guarantee that many less jobs can end in a given time on my z900 LPAR with 1 or 2 CPs than my z9 LPARs with 4 or 5 CPs. So I guess I sort of agree with Shane, but not when it comes to response goals for CICS and DDF. Regards, Mark -- Mark Zelden Sr. Software and Systems Architect - z/OS Team Lead Zurich North America / Farmers Insurance Group mailto: [EMAIL PROTECTED] Systems Programming expert at http://expertanswercenter.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
