Overview

Do you need to know how to establish a practical performance management program for your z/OS system? New performance analysts can 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 via the WLM Interactive System Productivity Facility (ISPF) application. Use both z/OS hands-on lab exercises and RMF case studies to reinforce the concepts and techniques discussed in lecture.

Hands-On Labs

Hands-on labs are included to address RMF configuration, analysis of RMF reports to find bottlenecks, and utilization of the WLM dialogs to create goals and classification rules in a Service Definition that manages a supplied z/OS workload. Teams also gain experience working with the RMF Spreadsheet Reporter and RMF Performance Monitoring.

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Prerequisites

You should be able to:

  • Understand basic z/OS operation, such as job flow through Job Entry Subsystem (JES), job scheduling, paging, swapping, dispatching controls and Input/Output (I/O) scheduling
  • Describe the purpose of the System Resources Manager (SRM) function in managing system workloads
  • Use the RMF performance-related reports to identify system performance problems
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Delegates will learn how to

  • 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 Central Processing Unit (CPU) performance when running in a shared logical partitioned mode (LPAR) environment
  • Measure and tune z/OS Direct Access Storage Device (DASD), processor storage, and Coupling Facility (CF) configurations
  • Explain the functions and facilities of RMF and System Management Facility (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) and Enterprise Workload Manager (EWLM)
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Outline

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
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