ES54G | Basic z/OS Tuning Using the Workload Manager
 
Overview 
Do you need to know how to establish a practical performance management program for your z/OS system? This course is designed for new performance analysts to learn to work with the Workload Manager (WLM) in goal mode. Learn concepts of WLM and performance management in the z/OS system using the WLM.
Learn how to analyze Resource Monitoring Facility (RMF) reports and implement service definitions using the WLM Interactive System Productivity Facility (ISPF) application. The course uses z/OS hands-on lab exercises to reinforce the concepts and techniques discussed in lecture.
Hands-on labs
This course includes hands-on lab exercises. Each student team, working on their own z/OS system, will configure RMF, analyze RMF reports to find bottlenecks, and utilize the WLM dialogs to create goals and classification rules in a service definition that manages a supplied z/OS workload.
 
Audience 
This is an intermediate course for z/OS system programmers, z/OS performance analysts, and z/OS performance administrators new to performance management for their z/OS system.
Note: ES54 is intended for individuals new to WLM and the z/OS performance area.
 
Prerequisites
You should:
Understand basic MVS and z/OS operation, such as job flow through JES, job scheduling paging, swapping, dispatching controls, and I/O scheduling
Have a basic knowledge of the purpose of the Workload Manager's function in managing system workloads
Be familiar with using TSO and ISPF to manage data sets and run batch jobs
 
Objectives
Describe a performance and tuning methodology
Develop a systematic z/OS performance and tuning plan
Describe the factors which could affect the performance of an z/OS system
Use the WLM ISPF application
Describe the components of a service definition
Define workloads and service levels and classification rules
State which z/OS commands affect WLM operation
Identify the major WLM services for z/OS, including enclaves and application environments, and how they are used by DB2, WebSphere, and CICS
Analyze CPU performance when running in a shared LPAR environment
Utilize and monitor zIIP and zAAP specialty engines
Measure and tune z/OS DASD, processor storage, and coupling facility configurations
Explain the functions and facilities of RMF and SMF
Analyze performance bottlenecks using RMF
Use Workload License Charges (WLC), defined capacity and soft capping to manage software costs
Describe advanced z/OS environments that utilize Intelligent Resource Director (IRD), HiperDispatch, z/OSMF Workload Management, and I/O Priority Manager
Use the z/OSMF Workload Management (WLM) task
Use Performance Monitoring with z/OSMF
Modify a WLM service definition to meet the requirements for monitoring a specific system workload
Create and customize Monitoring Desktops
Review any issues by using the Monitoring Desktops options displays
Assess the performance of the workloads running on the z/OS
 
Key topics
Unit 1 - Tuning methodology
Unit 2 - Using SMF and RMF to monitor performance
Lab 1 - Introduction to your system
Lab 2 - Using RMF Monitor I and Monitor II
Unit 3 - Performance impacts when running in a shared LPAR environment
Unit 4 - Basic system workload management (part 1)
Lab 3 - Implementing a WLM environment on z/OS (part 1)
Unit 4 - Basic system workload management (part 2)
Lab 3 - Implementing a WLM environment on z/OS (part 2)
Unit 5 - WLM commands, internals, and service
Lab 4 - Using RMF Monitor III to solve performance problems
Unit 6 - z/OS DASD performance topics
Unit 7 - Tuning processor storage
Unit 8 - Miscellaneous performance topics
Lab 5 - z/OSMF and performance management