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Course Catalog » z/OS Curriculum

Performance Monitoring Basics

12 hours



The Performance Monitoring Basics course describes the processes required to identify situations where total system performance is degraded. It also examines the use of RMF and OMEGAMON to identify and resolve individual problem conditions and identify where performance can be improved.


System programmers and operations and performance analysts requiring knowledge of MVS; this material addresses performance and capacity planning issues and can be instrumental in evaluating service level agreements, batch windows, online response times, and other system throughout indicators.


Knowledge of the MVS operating system and TSO/ISPF.


After completing this course, the student will be able to:

  • Identify situations where total system performance is degraded
  • Recognize how RMF and OMEGAMON are utilized

Course Content

Introduction to Performance Management

Basic Work Units

System Degradation Versus Individual Task Degradation

The Role of Various Performance Monitors

Performance Monitor Components

Enqueues and Reserves

Enqueue and Dequeue Processing

  • Enqueue and Reserves
  • Enqueue Serialization Scope
  • Reserve and Release
  • Common Enqueue Types
  • GRS Commands
  • IEF099I Processing
  • GRS Processing
  • Common Enqueue and Reserves

Work Load Manager

Workload Manager vs. IPS/ICS Setup

Goal Types

  • Response Time Goal
  • Average Response Time Goal
  • Percentile Response Time Goal
  • Discretionary Goal
  • Velocity Goal
  • System Goal
  • Importance
  • Performance Index (PI)

SRM - System Resource Manager

System Resource Allocation

Performance Group Versus Domain

Performance Group Selection

Sample PGN Selection

Multi-programming Level

Operator Controls

DASD, Part 1

DASD Subsystem

I/O Flow

  • Interpreting RMF DEV Display

DASD, Part 2

Missing Interrupt Handler

DASD, Part 3

DASD Physical Layout

DASD Performance Aids

  • Caching
  • DASD Fast Write
  • NVS
  • Cache Fast Write
  • Dual Copy

RAID Systems

Storage - PART 1

Introduction to Basic Storage Principles

Storage Types

Storage Hierarchy

Swapping and Paging

Monitoring the Movement of Storage

  • Interpreting Paging Displays

Storage - PART 2

Virtual Storage

Virtual Storage Areas

Storage Problems

  • Swap-Out Reasons
  • Storage Shortages

Methods of Improving Service



HYPER Volumes

High Performance Tape Systems

Performance Monitor Samples


  • RMF III Commands and Displays
  • RMF II Commands and Displays

Course Catalog » z/OS Curriculum
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