CICS/TS Application Dump Reading (Logic & Debugging)

 LENGTH OF COURSE:
 2-3 Days

DESCRIPTION: Students will learn how to quickly identify and resolve most application problems. The techniques taught in this course are easy to follow and well documented in the accompanying course guide. A "cook-book" approach is used during the class. Using these techniques, the student will be able to find and solve problems in the CICS/TS environment.

PREREQUISITES: Understanding of CICS/TS programming concepts and facilities. Students should review their HEX calculation skills or bring a HEX calculator to the class.

INSTRUCTION TECHNIQUES: A combination of Lecture, Exercises, and Labs (when/where available).

AUDIENCE

This course is designed for individuals that are Application Programmers, Analyst and Systems Personnel that need to quickly identify application program problems and use proven techniques to solve these problems.
KEY HIGHLIGHTS:
  • Review of Control Programs
    • Task Control
    • Program Control
    • Terminal Control
    • Storage Control
    • File Control
    • Dump Control
    • Temporary Storage Control
    • Transient Data Control
    • Trace Management
    • Journal Control
  • Evaluate the format of the CICS/TS Dump
    • Locate key control blocks
    • Find "Eye Catchers"
    • Evaluate the Memory Map
  • Program/Transaction Abends
    • Find the Symptom Strings
    • Locate failing instruction
    • Find instruction in program
    • Locate Data / Buffers in the Linkage Section and Working Storage.
    • Use the BLL & BLW cells for problem determination.


  • Identify key " Eye Catchers " in a dump and identify how to use for problem determination
  • Storage Violation Diagnosis
    • Review what is a violation
    • How CICS/TS detects violations
    • Evaluate the cause
    • Finding them in dumps
  • Storage Overlays
    • Application Impact
    • How they occur
    • Working Storage Overlays
    • Linkage Section Overlays
  • Detailed Trace Table Evaluation
    • Evaluate trace entries
    • Use Old and New Style Entries
    • Match trace entries to the application program
    • Find the point of failure
  • Storage Areas, Chains and Blocks
    • Find all data involved in the program
    • Evaluate field by field the content
    • Find key control areas quickly


  • Using control blocks for problem determination
  • PSW and Registers relevant to Dump
    • Find Register & PSW
    • Match the PSW to program code
    • Identify problem programs

FROM OUR STUDENT EVALUATIONS...
"Instructor was very well organized and presented information clearly. Did good reviews of material covered."

J. Brown
Social Security Administration

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