IBM ES20G - z/OS System Services Structure

Course Outline

Day 1

• Welcome
• Unit 1 - z/OS system introduction

Day 2

• Unit 2 - Operating environment initialization
• Unit 3 - Task management

Day 3

• Unit 4 - Addressability
• Unit 5 - Input/Output supervisor

Day 4

• Unit 6 - Storage management
• Unit 7 - Recovery termination manager

Day 5

• Unit 7 - Recovery termination manager (Continued)

Objective

• Explain the MVS functions and control blocks necessary to support a task in a multitasking and multiprocessing environment
• Describe the software and hardware functions that allow a program to interact with programs running in other address spaces, use data in other address spaces, and use data in data spaces
• Trace the flow of an I/O operation from the initial request in the application program through the completion of data transfer
• Identify the control blocks that describe the current status of an I/O request
• Describe the functions of the z/OS BCP Virtual, Real, and Auxiliary Storage Managers
• Describe the functions performed by the Recovery Termination Manager and recovery management components to minimize failure impact and enhance error correction
• Select the appropriate IBM publication to provide further technical information (SRLs, Technical Bulletins, Self-study and other z/OS courses)
• Describe the services provided by cross system extended services (XES)
• Identify and explain the purpose of the cache, list, and lock structures
• Plan the implementation of the global resource serialization STAR environment.0.2 pref