Basic z/OS Tuning Using the Workload Manager
Schedule
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Course Details
Basic z/OS Tuning Using the Workload Manager
Course code: ES54G
Duration: 4.5 Days
Prerequisite:
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
Course Description:
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.
Course Objectives:
After taking this course, you should be able 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 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
Intended Audience:
• This is an intermediate course for people who need to write and maintain Rexx programs in the z/OS system environment.
Course Outlines:
• Day 1
o Welcome
o Unit 1 - Tuning methodology
o Unit 2 - Using SMF and RMF to monitor performance
o Lab 1 - Introduction to your system
o Lab 2 - Using RMF Monitor I and Monitor II
• Day 2
o Unit 3 - Performance impacts when running in a shared LPAR environment
o Unit 4 - Basic system workload management (part 1)
o Lab 3 - Implementing a WLM environment on z/OS (part 1)
• Day 3
o Unit 4 - Basic system workload management (part 2)
o Lab 3 - Implementing a WLM environment on z/OS (part 2)
• Day 4
o Unit 5 - WLM commands, internals, and service
o Lab 4 - Using RMF Monitor III to solve performance problems
• Day 5
o Unit 6 - z/OS DASD performance topics
o Unit 7 - Tuning processor storage
o Unit 8 - Miscellaneous performance topics
o Lab 5 - z/OSMF and performance management