Omschrijving
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
Objective
- 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
Course 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
