ES54G: Basic z/OS Tuning Using the Workload Manager

IBM Systems Training

on February 14, 2022

      

4 min read

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Table of Contents

  1. Short Summary
  2. Duration
  3. Content Description
  4. Objectives
  5. Agenda
  6. Audience
  7. Skill Level
  8. Labs?
  9. Keywords
  10. Prerequisites
  11. Enrollment
  12. Errata
  13. Follow-on Courses

Short Summary

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:

Duration in Hours ⌚

36.0

Content Description

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.

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

Agenda

Day 1

  • Welcome
  • 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

Day 2

  • 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)

Day 3

  • Unit 4 - Basic system workload management (part 2)
  • Lab 3 - Implementing a WLM environment on z/OS (part 2)

Day 4

  • Unit 5 - WLM commands, internals, and service
  • Lab 4 - Using RMF Monitor III to solve performance problems

Day 5

  • Unit 6 - z/OS DASD performance topics
  • Unit 7 - Tuning processor storage
  • Unit 8 - Miscellaneous performance topics
  • Lab 5 - z/OSMF and performance management

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

Skill Level

Intermediate

Labs? 💻

N

Keywords

Introduction to your system;Tuning methodology;ES54G;ES54

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

Enrollment

https://www.ibm.com/training/course/ES54G

Errata

None specified.

Follow-on Courses

None


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Designed and developed by Upendra Rajan