CICS 3.1 Debugging

Show more IBM Training Courses

About this class

To help solve CICS system and program failures by improving the skills needed to read and analyse dumps. To develop a step by step approach for resolving dumps through debugging the dumps provided in the course. To develop skills necessary for keeping 'up' time to a maximum.

Who will the lesson benefit?

CICS Systems and Applications Programmers who are responsible for solving CICS Systems and Transaction dumps.

What prerequisites are required

Attendees should have at least three months CICS programming experience.

Contents of this class

Architecture

• Domains
• Gates
• Kernel Linkage

Causes

• External symptoms
• Incorrect data displayed
• Transaction ABENDs
• System ABENDs
• No response looping
• No response - waits

Messages

• CICS generated messages
• Relation to Dumps
• Format of CICS generated messages
• Sample DFH messages
• ABCODE interpretation

Dumps

• Identifiers
• Tables
• Transaction
• System

Working with Hexadecimal

• Understanding hex
• Displacements
• Addresses
• Conversions

Tracing

• Where
• What
• Formats
• Recommendations

Significant Application Domain Control Blocks

• Task Control Area (TCA)
• EXEC Interface Block (EIB)
• Task Abnormal Condition Block (TACB)
• Storage Check Zone (SCZ)
• Terminal Control Table Terminal Entry (TCTTE)
• Terminal Input-Output Area (TIOA)
• Storage Accounting Area (SAA)

Transaction Dump Solving

• Understanding the data
• Categorizing the dump
• Relating to Source
• Finding COBOL statements
• Finding Variables
• Key Domain Structures
• Kernel
• Dispatcher
• Transaction Manager
• Program Manager

System Dump Solving

• General Techniques
• Waits
• Storage Violations
• Structure of Storage Manager

CICS 3.1 Debugging / CDA (CDAGB)

(C) AquinasTraining.co.uk - Contact Us