Audience

System programmers responsible for the performance of a large-scale IMS DB/DC system.

Prerequisites

You should have:

• IMS Transaction Manager experience
• Data Communications experience

Duration

3 days. Hands on.

Course Objectives

This course teaches a methodology to tune a large-scale z/OS IMS/TM data communication system. Specifically, this course explains the impact of user-specified options on IMS performance, how to determine performance bottlenecks by interpreting information from certain performance reports, and how to implement a plan to improve the performance of an IMS system.

Course objectives include:

• Create and implement a performance improvement plan based on the methodology presented
• Discuss the performance options available to the IMS user
• Describe the performance impact of the IMS storage pools and data sets and their interrelationships
• Interpret the information contained in performance reports
• Analyze the performance reports to determine performance bottlenecks in the IMS system

Course Content

Unit 1: Monitoring and Tuning Overview
Unit 2: IMS Structure and Major Control Blocks
Unit 3: The IMS Logger and Pool Management
Unit 4: IMS Communication Component
Unit 5: IMS OTMA Communication Component
Unit 6: z/OS Considerations for IMS
Unit 7: IMS Scheduling
Unit 8: IMS Program Loading Options
Unit 9 : IMS Program Elapsed Time
Unit 10: IMS Database Buffering