Workload Manager

Audience

Systems programmers, technical support staff, performance specialists, and capacity planning analysts who are responsible for z/OS performance. Systems programmers responsible for a major subsystem will also benefit as will technical managers.

Prerequisites

The course assumes a knowledge or experience of z/OS, including an appreciation of system performance. Whilst attending our z/OS for Beginners course is not essential, it will give the desired level of knowledge.

Duration

3 days. Hands on.

Course Objectives

This course is designed to give the delegates a detailed overview of z/OS Workload Manager. After taking this course the student will be able to:

• State how WLM differs from SRM.
• Describe how WLM differs from SRM.
• Describe how WLM can simplify performance.
• Use the WLM ISPF dialogues.
• Understand and use the RMF reports associated with WLM.
• Demonstrate how subsystems interact with WLM.
• Understand the WLM macros.

Course Content

Introduction
What is the Workload Manager?
Goal mode and compatibility mode of the Workload Manager.
How the Workload Manager operates in a single system.
How the Workload Manager operates in a parallel sysplex.
Transaction routing; what it is and how it helps.
An introduction to the Workload Manager controls.

The Workload Manager Macros
Why are macro services required?
What macro services are available?
How the different macro services are used
An overview of the major WLM macros

Coding the Service Definitions
Structure of the service definitions
Creating and modifying the definitions
A detailed examination of each definition covering all the parameters and their use
A paper based coding exercise
The WLM Dialogues
The flow and structure of the dialogues
Samples of major dialogue screens

The Workload Manager RMF Reports
Introduction to the Workload Manager RMF reports
The new Monitor III reports - how to read and use them
The new Monitor I reports - how to read and use them
How to use SMF Type 99 records

Exploitation of the Workload Manager
How to set up z/OS to be able to use the Workload Manager
How to establish realistic goal values
The Workload Manager console commands
How to switch between compatibility mode and goal mode
Migrating a parallel sysplex to use the Workload Manager
Making the best use of the Workload Manager