CICS Fundamentals and System Programmers

Description

This intensive course combines CICS Fundamentals and CICS for System Programmers into a 5-day program, and it does so by removing topics overlaps.

Audience

This course is aimed at:

Trainee Programmers moving to online
Anyone wanting a detailed overview of CICS Facilities
CICS Systems Programmers
Technical CICS Programmers needing a better understanding of CICS

Prerequisites

Attendees should be comfortable working with TSO/ISPF, our z/OS TSO/ISPF Workshop is one way to gain this knowledge.

Objectives

This course provides an introduction to CICS/TS for version 6.1 and its Facilities and Functions.

The following are covered; Operator Interface, Intersystem Communication and how Resources are defined and managed. The course introduces the CICS RACF Security interface, Startup/Shutdown and Recovery, the CICS Explorer, CICS Web Services, CICS Utilities and Threadsafe. The course also covers how CICS is installed and how CICS supports Storage Management. CICS support of external Databases such as DB2 and VSAM and the need for Data Integrity is also covered. In addition, the Attendee will learn how CICS Applications are designed and how CICS supplied Transactions assist the Programmer in Testing and Debugging. Upon completion, attendees will have gained a good understanding of the role of CICS and be able to describe and support its basic architecture and its many services.

A CICS/TS 6.1 system will be available for Workshops and to reinforce the topics covered.

Topics

CICS Functions and Terminology

Introduction to CICS Functions and Terminology
How Transactions are created and processed

CICS Application Interface and Designing Applications

Understanding the different types of CICS Application Design
COMMAREAS and Channels and Containers
Basic Mapping Support - 3270 Support
Supplied CICS Transactions to handle Testing and Debugging
Recovery and Restart and Handling Exceptional Conditions

CICS Installation and Customization

Understanding how z/OSMF installs CICS/TS
Understanding the customization of CICS/TS using DFHISTAR
Defining the CICS Datasets - DFHCOMDS & DFHDEFDS
How to define CICS to z/OS
How to define CICS to VTAM and TCPIP
Understanding the CICS Startup JCL

CICS/TS Internal Structure

The Role of the Domains
The Role of the Kernel Domain
The Role of the Transaction Manager Domain
The Role of the Application Domain
The Role of the Dispatcher Domain
The Major Control Blocks

CICS/TS Storage Managery

The Storage Manager Facilities
Storage Protection
The Dynamic Storage Areas
The Transaction Isolation facility

CThe CICS Tables

The Program List Table Post Initialization
The Program List Table Shutdown
The System Initialization Table
The System Recovery Table

Resource Definition Online

The DFHCSD dataset
The CEDA transaction
- CEDB
- CEDC
The Components of RDO
Building the Definitions for CICS
The Batch Facility
- DFHCSDUP
The CICSLOG destinations
- Audit trailing

CICS/VTAM/TCPIP Interface

The major VTAM control blocks
- ACB
- NIB
- RPL
- Bind
The Terminal Control Table
Sequential Terminals
Controlling the VTAM Interface
Defining the TCPIP interface
- The TCPIPSERVICE definition
- The Listener Transaction
- Defining Sockets and Ports
- Incoming Transactions

CICS to MQ Connectivity

CICS / MQ Relationship
SIT Implications
CSD Definitions
The role of the CKTI Transaction
Using the CKQC Transaction

CICS Security Requirements

Sources of threat
What can be secured
Identifying CICS datasets
The RACF Class Descriptors for CICS
How to define the CICS Resources to RACF
Converting CICS and build RACF security

File Control and DB2

Defining the FCT
The VSAM environment
Displaying the FCT online
DB2 components and DB2Conn
The Attachment facility
The DSNC transaction
Defining the CICS/DB2 resources
Preparing a Program - Bind

CICS Operations

The Master Terminal Operation
- CEMT
- CESN
- CESF
Different options to Start CICS
- INITIAL
- COLD
- AUTO
The role of the Global Catalog Warm/Emer start
- Shutting Down the CICS system
- CICS Supplied Transactions
- CEBR
- CECI
- CEDF and CEDX
- CETR
- CMAC

Defining and Controlling MRO & LUTYPE6.2 & IPIC

The MRO environment
Defining MRO/XCF
The Online options needed to define MRO
Connections/Sessions
The LUTYPE6.2 environment
The Online options needed to define LUTYPE6.2
How to Define the TOR, AOR, FOR
What is the CICS Relay
Dynamic Transaction Routing
What is the Mirror
Defining TCPIP IPIC Links
Defining IPCONN and TCPIPSERVICE

CICS Explorer

Establishing/Defining the CICS Explorer TCPIP Connection
TCPIPSERVICE
URIMAP
Connecting to CICS Explorer
Signing on
Choosing Perspectives
The CMCI - CICS Management Client Interface
Understanding the CICSPLEX SM Eclipse/Screen Layout
The Operations View
The Definitions View

Understanding CICS/TS Logging

Defining the System Logger
CEDA Defining the Journal Models
Specifying the Journal name and the Stream name
IXCMIAPU – The XCF Admin Utility
Defining the Structures
The role of DFHLOG and DFHSHUNT
Error Situations
Security and Operations

Recovery and Restart

Dynamic Transaction Backout
Emergency Restart
Exclusive control - Syncpoint
Defining Recoverable Resources
Considerations for Backout

CICS Utilities

DFHSTUP - Tuning and Statistics
DFH0STAT and the STAT Transaction
DFHEISUP
DFHJUP
DFHMNDUP
DFHRMUTL
DFHDUP
DFHTUP

CICS/TS Web Services

Web support overview
Sit implications and definitions
Using TCPIPSERVICE definition
Using DOCTEMPLATE definition
Using URIMAP definition
PIPELINE definition described
Pipeline message handlers
Understanding the Assistant Utilities
Converting the Language Structure to XML/SOAP
Converting the Language Structure to JSON
Building WSDL and WSBIND

Understanding CICS/TS Threadsafe

OTE Overview
Why the need for Threadsafe
Defining Threadsafe programs
Researching which programs can be Threadsafe
System Programmers Tasks
SIT Options that affect Threadsafe
Tracing Threadsafe