Basic z/OS Tuning Using the Workload Manager

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: Basic z/OS Tuning Using the Workload Manager (ES54GB) is intended for individuals new to WLM and the z/OS performance area.

• 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)

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 impact 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 performance topic
• Unit 7 - Tuning processor storage
• Unit 8 - Miscellaneous performance topics

You should:

• Understand basic MVS / z/OS operation, such as job flow through JES, job scheduling paging, swapping, dispatching controls, 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