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.
A basic understanding of z/OS architecture, TSO/ISPF, JCL and SDSF.
5 days (delivered in 10 half day sessions). Hands on.
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.
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