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Course Overview 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. Audience CICS Systems and Applications Programmers who are responsible for solving CICS Systems and Transaction dumps. Prerequisites Attendees should have at least three months CICS programming experience. Course Outline 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
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