I would tinker with the policy but not use resource groups. I would only use resource groups to cap unruly tasks not guarantee. Are you running WLM Managed Initiators? Do you have control over the initiators and batch work or are people resetting service classes and starting inits along the way? Have you tried to tune the policy to your problem time frame? If that problem batch work has unattainable goals I'd be hard pressed to see how it will get any CPU. I ended up tuning to our calendar month end process that could hit mid week and run all the next day. I used WLM Managed Initiators but used time of day rules to limit concurrence by job class based on requirements. A UK piece had to start early, 14:00, on the last day of the month, EST. Then the rest of the batch, 2 different cycles, would kick at around 18:00. My bottom feeders would see about 85% wait on CPU during prime time the next day but still get some service. I ended up doing a multi-period imp 4/5 service class setup with low velocities for this. The developers knew that during this time frame long runners would be just that or real long runners. Or maybe consider multi period batch with imp's 3, 4, and 5. Three to get them started and run a bit, 4 throttle down and 5 just let them run all day. "McKown, John" <[EMAIL PROTECTED]> wrote: > -----Original Message----- > From: IBM Mainframe Discussion List > [mailto:[EMAIL PROTECTED] On Behalf Of Tom Schmidt > Sent: Monday, December 17, 2007 11:36 AM > To: IBM-MAIN@BAMA.UA.EDU > Subject: Re: WLM question. >
> > Sorry to see your sysplex disappear over this... ;) > > -- > Tom Schmidt The parallel sysplex disappeared when nobody wanted to pony up for the cost of a CFL. The basic sysplex is now endangered due to the CPU cost of running two z/OS images for no apparent benefit over "tinkering" with WLM. I don't really mind much. I was not convinced that any type of sysplex, in our environment, was all that much of a positive. There are some positives for tech services in the area of better testing before production. There really aren't any for applications or production control that I can see. -- John McKown Senior Systems Programmer HealthMarkets Keeping the Promise of Affordable Coverage Administrative Services Group Information Technology ---------------------------------------------------------------------- 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
