z/OS for System Programmers

This course covers the major components of z/OS and its Architecture.

This course is aimed at:

• z/OS System Programmers
• Trainee z/OS System Programmers

Attendees should have a minimum of 2 years supporting a z/OS operating system.

Attendees should have completed an introduction to z/OS.

Upon completion, attendees will be able to describe the major components of z/OS and its Architecture. Storage Management, Program Management and Data Management are explained. Serialization and Supervisor Services are also explained. How to build a z/OS system in selecting the correct parameters for initialization. The IPL Process is fully explained. The attendee will understand in detail how z/OS Dumps are created. SMF, WLM, GRS and the Recovery components function. Understanding and Defining a Parallel Sysplex is also covered. A number of Workshops are included to reinforce topics covered.

MVS Architecture
PSW – Program Status Word
General Purpose Registers
24, 31 and 64 bit processing
Layout of an Address Space
System Address Spaces

Storage Management
Virtual, Real and Auxiliary Storage
Dynamic Address Translation

Program Management
Loadlibs
The makeup of a Load module
Establishing z/OS Authorization
Link Edit/ Program Binder
Linklist
Amode and Rmode

Data Management
Dataset Structures
Record formats
Introduction to VSAM
Device Characteristics
VTOC
Dataset Allocation

TCB, SRB and the Dispatcher
What is a Task Control Block
What is an System Request Block
PRB – Program Request Block
JSCB – Job Step Control Block
TIOT – Task Input/Output Table
CDE – Contents Directory Element
How Tasks are Dispatched

Dump Management
Different types of dumps
• SVC
• Standalone
Introduction to IPCS
Defining and Dump selection
Dump Commands
Setting Slips
GTF
SYS1.DAE
Workshop

Supervisor Services
SVCs
Interrupt handlers
Abend Handling
Types of Program Checks
USS

Serialization
GRS
ENQ/DEQ
RESERVEs
GRSRNLs

Defining and Building z/OS Parmlib
Defining Page datasets
Defining Logrec, STGIndex
CLPA
MLPA
FLPA
The major z/OS members:
• IEFSSNxx
• SCHEDxx
• PROG
• LPALST
• BPXPRMxx
• SMFPRMxx
• IEASYSxx
• IEASYMxx
• COUPLExx
• CLOCKxx
Defining and specifying JES2Parms
LLA
VLF

Understanding SMF, RMF, WLM
Workshop

The IPL Process
IPL Selection
Defining the LOAD member
IEASYS00
IEASYM00
Understanding Wait States
Operating the z/OS Environment
Dynamically adding APF and Linklist Datasets

Understanding the Parallel Sysplex
The Elements of a Parallel Sysplex
Loosely Coupled
Base Sysplex
Parallel Sysplex
The XCF Utilities IXCL1DSU and IXCMIAPU
Defining and Building the COUPLE Datasets
What are Structures and how to define them
XCF Messaging
Specifying the Coupling Facility Resource Manager
LOGR, WLM, SFM. ARM, BPX Resource Managers
Operating the Parallel Sysplex