z/OS IPCS & Diagnostics

 LENGTH OF COURSE:
 5 Days

DESCRIPTION: This course is designed to provide systems programmers with the skills required to isolate and solve operating system problems. Students will learn advanced techniques necessary to solve SVC and Stand-alone dumps, LOGREC records, TRACE records, and IOS subsystem analysis.
PREREQUISITES: Knowledge of some OS/390 internals is required.

INSTRUCTION TECHNIQUES: A combination of Lecture and Hand-On Labs (when/where available).

AUDIENCE

Experienced OS/390 Systems Programmers responsible for installing and maintaining OS/390 operating systems.
KEY HIGHLIGHTS:
  • Proper environment required to use IPCS
    • Browse Dump Functions
    • Analyze Dump Contents
    • Batch Problem Analysis
    • Utility Functions
    • Dump Inventory
    • IPCS Dialogs
  • Recovery/termination manager overview
    • ESTAE Routines
    • FRR Routines
  • OS/390 Interrupt Handlers overview
  • Process and Auxiliary storage manager
  • Lock and Serialization manager
  • Debugging paths used to identify component problems
    • Component Traces
    • System Traces
    • Master Traces
    • GTF Traces
    • AR Mode
    • SRB Mode
    • Cross-Memory Mode
    • WAIT Mode


  • Systematic approach to solve SVC and Stand-along dumps
  • OS/390 dispatching mechanism
  • SRB, cross-memory mode and access register mode service
  • Data spaces and hiperspaces
  • LOGREC, IOS, and TRACE records
  • Actions taken by the recovery manager
  • Debugging OS/390 and IOS subsystem SVC and SA dumps
    • IOQ Concepts
    • Queue Lengths
    • I/O Buffer Pools


FROM OUR STUDENT EVALUATIONS...
"Great instructor -- informative and knowledgeable."

Jay Berg
Social Security Administration

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