This vaguely relates to my previous sysplex questions. One of the reasons given to split our single image was to guarantee that the non-production work would receive some CPU cycles during high use periods (basically month end). If was felt that using LPAR weights was a way to do this. I am sure that there is some way to do this on a single image using WLM.
So, my question is, suppose we are in a high CPU use situation. In fact, the CPU is running 100% and some jobs are not receiving any CPU. Everything is running behind in service. That is, the PI for all batch work is >1 . I want to ensure that non-production work will receive CPU cycles. What is really wanted to to say that production batch will receive 60% of the cycles, Model office about 20% and test about 10%. These percentages are not of the entire CPU, but only of the CPU "left over" after works such as production CICS, JES2, NET, etc get what they need. The best that I can figure out is to try to determine the execution velocity of the work in question and use a smaller number in the service class, but have the importance be identical. As an example, suppose tha that the workloads have identical execution profiles (the same velocity). I make the goal for production to be 60% of the velocity, the goal for model office be 20% of the velocity, and test be 10% of that velocity, all with the same importance. Or, since nobody will reach their goal (the PI for all will be > 1), should I do the reverse? I.e. how to I tinker with WLM so that the PIs of the three service classes will be approximately the same when they are receiving the stated percentages? I'm very confused by this. I feel that I will likely just need to "tinker" with the numbers until everybody is complaining equally. -- John McKown Senior Systems Programmer HealthMarkets Keeping the Promise of Affordable Coverage Administrative Services Group Information Technology The information contained in this e-mail message may be privileged and/or confidential. It is for intended addressee(s) only. If you are not the intended recipient, you are hereby notified that any disclosure, reproduction, distribution or other use of this communication is strictly prohibited and could, in certain circumstances, be a criminal offense. If you have received this e-mail in error, please notify the sender by reply and delete this message without copying or disclosing it. ---------------------------------------------------------------------- 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
