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z/OS System Operation and Facilities
Mainframe Training Overview

This course provides an examination of z/OS for systems programmers, operators and application programmers. Topics include an introduction to the z/series systems hardware and an exploration of z/OS architecture, system services and functions, storage management mechanisms, and I/O processes. In particular the focus will be to explore the operation of the z/OS environment with an objective of understanding its performance and exploitation opportunities.

Mainframe Training Audience

System programmers, operators, and application programmers that need an understanding of the z/OS environment and the subsystems supported.

Mainframe Training Course duration

5 days

Mainframe Training Course outline

System Basics

  Examine how data is represented in computers, using binary, hexadecimal, and decimal

Introduction to memory addresses and basic instruction operation

Explore the role of the PSW in machine operations

Introduce basic computer hardware inventory: CPU, Memory, and I/O devices

Programs

  Examine basic program structure.

Introduction to Linkage Editor functions

Illustrate connection between data, JCL and programs

Introduction to basic TSO/ISPF and SDSF

History and Overview of z/OS

  Evolution of operating systems from MVT/MFT to OS/390 and z/OS.

Examining LPARs and parallel sysplex configurations.

The IPL Process

  Review the IPL process

Steps in systems initialization

System Services and PARMLIB

  Interrupts and interrupt handling

PARMLIB definitions related to system functions

System Address spaces

Storage Management Mechanisms

  Real storage management:

          Central and expanded storage usage

Virtual storage management:

          Paging/Swapping mechanisms

Auxiliary storage management

Task Management

  Review of initiator/terminator functions

Address spaces and task control

I/O Processing

  Introduction to DASD hardware functions:

          CKD, ECKD, and FBA devices

          Parallel Access Volumes (PAV)

          Volume Affinity

Components of I/O operation:

          Introduction to channel command processing

Access method services

Caching mechanisms

Access Methods and Data Bases

  Data set organization and access methods:

          Sequential access (SAM)

          Basic Partitioned Access (BPAM)

          Basic Direct Access (BDAM)

          VSAM processing (ESDS, KSDS, RRDS)

Introduction to data base processing concepts

Resource Management

  Examine basic objectives in managing system resources

Explore the process of defining objectives

Discuss the process WLM uses to make decisions and monitoring requirements

Scheduling environments

Intelligent Resource Director

System Managed Storage

  Introduce DFSMS concepts

Review SMS components

Introduction to Basic Communication Services

  Basic networking and configurations

TCP/IP overview and function

VTAM/SNA overview and function

Introduction to z/OS Subsystems and Services

  Overview of JES2 operation and function

Introduction and overview to CICS and IMS

Additional subsystems including:

          Unix System Services (USS)

          Security

          Performance Management Software

          Diagnostics and Debugging Software


Workstations will be used to illustrate concepts and provide basic exposure to the elements of the z/OS environment.

 
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