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Z Performance - z/OS I/O Performance and Capacity Planning

Duration

3 hours

Overview

In this course you will examine the I/O process and see how I/O performance problems are detected, and the metrics used to determine where a problem may exist. Methods used to improve I/O performance are also discussed.

Audience

Prerequisites

Completion of the following Interskill courses: IBM (z/OS) - Introduction to the IBM Enterprise environment, z/OS - Concepts and Components, z Performance - Introduction to Mainframe Performance

Objectives

After completing this course the student will be able to:

  • Describe what I/O performance means and what z/OS Administrators can do about it
  • Identify z/OS features used to measure I/O performance and how it can be improved
  • Identify options used to improve I/O performance
  • Explain the role of the capacity planner
  • Identify data used to forecast future resource requirements
  • Describe methods used to reduce resource usage

Course Content

z/OS I/O Performance

Identifying an I/O Performance Problem
Tools Used to Detect I/O Performance Issues
The I/O Process
Determining I/O Response Times
Performance Monitors
Interpreting I/O Related Data From RMF Reports
Channel Performance
Cache Performance
Improving I/O Performance
WLM and I/O Priority

Introduction to z/OS Capacity Planning

SLAs and SLOs
Long-Term Planning
Identifying Data Used to Determine Future Capacity Requirements
Detecting Unused CPU
Processor Capacity Reference for System z Tool
Planning for Coupling Facility Memory
Identifying Future DASD Space Requirements
Methods Used to Reduce Resource Usage
Adding Resources

Z Performance - z/OS I/O Performance and Capacity Planning Mastery Test

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