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z/OS System Services Structure

Price
4,075 USD
36 Hours
ES20G
Classroom Training, Online Training
IBM Business Partner

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  • Date: 13-Feb-2023 to 17-Feb-2023
    Time: 9AM - 5PM US Eastern
    Location: Virtual
    Language: English
    Delivered by: LearnQuest
    Price: 4,075 USD
  • Date: 13-Mar-2023 to 17-Mar-2023
    Time: 9AM - 5PM US Eastern
    Location: Virtual
    Language: English
    Delivered by: LearnQuest
    Price: 4,075 USD
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Course Description

Overview

This course presents the structure and control blocks of the z/OS BCP and system services. It prepares the new z/OS system programmer to identify potential bottlenecks and performance problems, perform initial error symptom gathering, and identify opportunities and requirements for tailoring a z/OS system. This course also provides prerequisite information needed for further training in specialized areas such as system measurement and tuning and system problem determination.

This course is one step in the following Learning Journey:

  1. z/OS System Programmer

Objectives

  • 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

Audience

The primary audience for this intermediate course are z/OS system programmers who are new to z/OS installation, customization, measurement and tuning, or problem determination. Subsystem programmers will also benefit from this class.

Prerequisites

    You should be able to:

    • Describe the following z/OS BCP (MVS) characteristics:
      • multiprocessing
      • multiprogramming
      • virtual storage and paging
      • and multiple address space/data space architecture
    • Explain how paging and swapping are accomplished through the interaction of real/central, expanded, auxiliary, and virtual storage in a z/OS system
    • Explain the role of the dispatcher, interrupts, SVCs, the program manager, and serialization in managing work in a z/OS system
    • State the role of z/OS software and hardware components in handling an I/O request for data on a direct access storage device

    These prerequisites can be met through on the job training or completion of z/OS Facilities.

    Note: A fundamental knowledge of hexadecimal notation, assembler language, and z/Architecture instruction execution will enhance your understanding of the course material. Completion of Assembler Language Coding Workshop or Assembler Language Series is recommended.

Topics

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)
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Self-Paced Training Info

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  • Same in-demand topics as instructor-led public and private classes.
  • Standalone learning or supplemental reinforcement.
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