IBM System z Diagnostics and Architecture

IBM System z Diagnostics and Architecture

Audience

This course is ideal for new Systems Programmers and those who need an understanding of the z/OS System structure and diagnostics, including a look at basic dump reading.

Prerequisites

A basic understanding of z/OS architecture, TSO/ISPF, JCL and SDSF.

Duration

5 days (delivered in 10 half day sessions). Hands on.

Course Objectives

This course is ideal for new Systems Programmers and those who need an understanding of the z/OS System structure and diagnostics, including a look at basic dump reading. It does not seek to train the attendees on in-depth dump diagnostics, but will give them enough knowledge to appreciate when to escalate issues and be able to liaise with IBM support staff in a knowledgeable and efficient manner. Hands on labs are included using IPCS to examine several simple dumps in a z/OS environment.

Course Content

SMP/E - what is it and what are FMIDs/PTFs & Apars?

I/O subsystem and Access methods

Parmlib - understanding a live system
• Understanding the Parmlib concatenation

Using Commands and REXX to analyse a live system

Virtual Storage overview - Paging & Swapping and their effect on a z/OS TASK

z/OS use of Control Blocks - data areas manuals
• PSA, ASCB, TCB, etc
• How are CBs accessed in REXX, COBOL & ASSEMBLER
• CB chasing Practicals using REXX & ASSEMBLER supplied programs
• Wait Post & ECBs

Interrupts - what are they?

System recovery after problems (Logrec, ESTAE & Abend)

Different Dump Types

Difference between Assembler and Machine Code

IPCS Examine some simple dumps on Live system
• 0C7 CEEDUMP in sysout vs 0C7 SYSMDUMP in IPCS
• Look at several different dumps in IPCS
• Look at an IP trace in IPCS

Virtual Courses

ALL of our courses can be delivered virtually. And our Bath public schedule of courses are now available as live virtual sessions, using the popular Zoom Virtual Classroom and remote labs. Delegates can test their access at: www.zoom.us/test

On-Site Courses

Can't attend one of our public classes? Booking for multiple people?

All our courses are available on your site! Delivered for your staff, at your premises.

Contact us to find out more...