Dave - I'm by no means a Capacity Planning guru but here's my 2 cents. Velocity is defined as a measure of protection against delay - it's not a hard and fast number. I'd first look at your service classes and find if any of them have a PI of less than 1. If they do they are over achieving their goals and you could drop the velocity on them to provide resources to the service classes who are struggling. Adjust the Velocities by 10 rather than single digits. All the tuning of the high achieving (not High Importance or velocity) Classes will provide help to the under achievers.
Jerry Whitteridge [email protected] Manager Mainframe Systems & HP Non-Stop Albertsons Companies -----Original Message----- From: IBM Mainframe Discussion List <[email protected]> On Behalf Of Gibney, Dave Sent: Tuesday, October 13, 2020 2:28 PM To: [email protected] Subject: EXTERNAL EMAIL: Max possible velocity? It has been quite some time since I had to worry about my WLM policy. We've had ample capacity since 2007. Now, as We begin to wind down, we have reduced our contracted MSU capacity. We dropped from 15 to 12 on an 5 way z13S-N05. My WLM policy, last seriously adjusted in 2007 when we moved to a z9-L03 has velocities ranging from a high of 90 (Adabas, Imp 1) down to 5 (BATCH Imp 5) We are experiencing just a minor amount of performance pain. It strikes me that perhaps some of my higher velocity goals (90, 70, 60, 50) may be unattainable under the now reduced capacity. What is the high end for possible, single threaded (Adabas) velocity here? Or, where should I be reading in current manuals. I was better at this 15 years ago. Dave Gibney Information Technology Services Washington State University ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN ________________________________ Warning: All e-mail sent to this address will be received by the corporate e-mail system, and is subject to archival and review by someone other than the recipient. This e-mail may contain proprietary information and is intended only for the use of the intended recipient(s). If the reader of this message is not the intended recipient(s), you are notified that you have received this message in error and that any review, dissemination, distribution or copying of this message is strictly prohibited. If you have received this message in error, please notify the sender immediately. ________________________________ ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
