Raise or lower the priority of a workload as needed to meet user-specified goals.
Written by Susan Lawson
This article is an excerpt from chapter 6, “Performance and Tuning,” of DB2 11 for z/OS Database Administration: Certification Study Guide (Exam 312).
Using z/OS Workload Manager (WLM), you can set z/OS performance options for DB2. With WLM, you define performance goals and assign a business importance to each goal. The goals for work are defined in business terms, and the system decides how much resource, such as CPU and storage, to give to the work to meet its goal.
WLM controls the dispatching priority based on the user-supplied goals. It raises or lowers the priority as needed to meet the specified goal. Thus, you need not fine-tune the exact priorities of every piece of work in the system and can focus instead on business objectives.