This class is a lecture-workshop for experienced systems programmers with a focus on using the tools available to narrow down the scope of system problems, identify failed components and debug operating systems problems. Emphasis will be on problem diagnosis and "hands-on" exercises using the available tools.

Mainframe Training Audience

This class is intended for experienced systems programmers with a good understanding of TSO/E, JCL and z/OS functions.

Mainframe Training Course duration

5 days

Mainframe Training Course outline

Problem types and their diagnosis
	Abends System "hangs" or wait states System or component loops Incorrect output or corrupt operation problems Performance/availability problems
Component identification and isolation
Diagnostic tools and their usage
	Abends Tracing mechanisms LOGREC Service Aids IPCS
System failure versus recoverable scenarios
Session Content
I. Problem diagnosis overview
	a. Types of problems b. Component failure isolation approaches c. Assessment d. Specifying symptoms
II. IPCS
	a. Verbs and functions b. CLISTS and customization options
III. Abends and dump processing
	a. Dump types SVC Dumps Stand-alone dumps and their use Abend dumps SNAP dumps Transaction dumps b. System and component reference data
IV. SLIP Traps
V. Tracing tools and procedures
	a. System trace (ST) b. Master trace c. Generalized tracing facility (GTF) d. Component trace (CT) e. Transaction trace f. GETMAIN, FREEMAIN, STORAGE trace
VI. Service Aids
	a. SPZAP b. AMBLIST
VII. Additional diagnostic data
	a. LOGREC data
VIII. Assessing system recovery options
	a. Spin loops b. Performance/availability problems