z/OS Systems Programming Fundamentals

Duration: 5.0 days

Method: Instructor led, Hands-on workshops.

Price: $2950.00

Course Code: MF1070

Audience

New z/OS system programmers that need an understanding of the z/OS environment and the subsystems supported. Workstations will be used to illustrate concepts and provide basic exposure to the elements of the z/OS environment.

Description

This course provides an examination of z/OS for new systems programmers. Topics include an introduction to the z/series systems hardware and an exploration of z/OS architecture, system services and functions, subsystems, and communications. In particular, the focus will be to explore the operation of the z/OS environment with an objective of understanding its setup, configuration, and management.

Prerequisites

The student should have a basic understanding of TSO/ISPF, JCL and basic utility programs.

Topics

I. 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
II. Programs
- Examine basic program structure
- Introduction to Linkage Editor functions
- Illustrate connection between data, JCL and programs
III. History and Overview of z/OS
- Evolution of operating systems from MVT/MFT to z/OS
- Examining LPARs and parallel sysplex configurations
IV. The IPL Process
- Review the IPL process
- Steps in systems initialization
V. System Services and PARMLIB
- Interrupts and interrupt handling
- PARMLIB definitions related to system functions
- System Address spaces
VI. Hardware Configuration Dialogues (HCD)
- Introduction to the Hardware Configuration Dialogues (HCD)
- Review of Hardware Structures and Understanding I/O Configuration Definitions
VII. 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)
- Systems catalog
VIII. 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
IX. System Managed Storage
- Introduce DFSMS concepts
- Review SMS components
  - SMS Control data sets
- ISMF Panels and Storage Administration Functions
  - Storage Groups
  - Data Class
  - Management Class
  - Storage Class
X. Introduction to JES2
- Introduction to JES2 Concepts
  - Introduction to JES2 Checkpoint and Spool operations
  - Examine JES2 job execution phases
  - JES2 and Workload Manager (WLM)
  - JES2 system configuration options (including Poly-JES)
- JES2 Initialization
  - JES2 start-up options
  - JES2 procedure and specification requirements
  - Dynamic allocation of PROCLIB and PARMLIB specifications
  - Introduction to JES2 initialization statements
- Controlling JES2 Processes
  - JES2 device assignments
  - Internal reader facility
  - Job selection criteria and job initiation
  - Member affinity and initiator management
  - Output management
  - Print/Punch phase and output routine
- Spool Volumes and Operation
  - Spool volume allocation
  - Spool management
  - Spool Offload Facility
- JES2 Checkpoint Processing
  - Checkpoint sizing and placement
  - Checkpoint configuration considerations
  - Checkpoint reconfiguration dialogues
  - Recovering from Multi-Access Spool (MAS) failures
  - JES2 Checkpoint and coupling facility
- Remote JES2 Configurations: RJE/NJE
- Network Job Entry (NJE) definitions
- Networking considerations and topology
- Remote Job Entry (RJE) definitions
XI. Introduction to Unix System Services (USS)
- USS File systems
- USS Setup, commands, and definitions
XII. Introduction to Basic Communication Services
- Basic networking and configurations
- VTAM/SNA overview and function
  - Examine terminology associated with SNA networks
  - Review VTAM/SNA networking concepts and configurations
  - VTAM JCL and data sets
  - VTAM initialization parameters (ATCSTR00 and ATCCONxx)
- TCP/IP overview and function
  - Examine terminology associated with TCP/IP networks
  - Review TCP/IP networking concepts and packet delivery
  - Examine architecture and standards
  - Review TCP/IP protocols
  - Describe various TCP/IP applications and their uses
XIII. SYSTEM Installation and Maintenance
- SMP/E Overview and Methodology
  - SMP/E data sets and their role in maintaining system information
  - Introduction to SMP/E dialogues
  - Introduction to the SMP/E zones; Global, Target, and Distribution
  - Establishing the SMP/E environment and its definitions
- SYSMODS
  - Introduction to SYSMOD types; PTF, APAR, FUNCTION, and USERMODS
  - Review HOLDDATA
  - Examine MCS statements and how utility functions are performed within SMP/E
  - RECEIVE, APPLY, and ACCEPT processing
  - Examine the SMP/E process for introducing change into the z/OS environment
  - RECEIVE processing
  - APPLY CHECK and APPLY processing
  - ACCEPT CHECK and ACCEPT processing
- RESTORE and REJECT processing
  - Examine SMP/E process for restoring and removing changes from z/OS
  - RESTORE CHECK and RESTORE processing
  - REJECT processing
- SMP/E Reporting
  - SMP/E logging functions to trace activity
  - SMP/E LIST command to report on managed elements
  - SMP/E Report functions