Course Overview
On completion of the course delegates will be able to understand the role of systems programmers, and be familiar with the technical set-up of z/OS or OS/390 systems. They will be able to understand the basic tailoring to the system at IPL time and be able to establish from PARMLIB, HCD or via operator commands, the configuration of the system.
Audience
This course is for new systems programmers, storage administrators, hardware planners and senior operations staff responsible for planning and controlling the I/O configuration of z/OS or OS/390 systems.
Prerequisites
Persons attending this course should be familiar with z/OS and TSO. This knowledge can be obtained from our z/OS for Beginners and TSO/ISPF Workshop courses.
Course Outline
Introduction to the Role of Systems Programming
Identifying the tasks of a system programmer with special emphasis on tailoring of the system
The IPL Process and Associated Parameters
Parmlib members covered:
LOADxx
NUCLSTxx
IEASYSxx
COMMNDxx
IEACMD00
CONSOLxx
IMSI with suggestions for use
Logical parmlib
CSA and SQA
Use and size
Paging
How many page data sets
Placing and sizing page data sets
Console set up
Commands include:
D IPLINFO
D U,IPLVOL
D SYMBOLS
D PARMLIB
D ASM
Programs and Virtual Storage layout
Parmlib members covered for general programs:
MSTJCLxx
PROGxx (LNKLSTxx IEAAPFxx)
IEAFIXxx
IEALPAxx
LPALSTxx
IEASVCxx
IFAPRDxx
Commands for dynamic changes
SETPROG
SET PROG
Parmlib members covered for special programs and subsystems:
IEFSSNxx
SCHEDxx
JES2
Locating the JESPARM data
Reviewing the JESPARM data, especially:
SPOOL and Checkpoint data set size, number and location
BUFSIZE, TGSIZE and TRKCELL
JES2 display commands, including variations of:
$D SPL
JES2 commands for reconfiguring the checkpoint data set
use of CF for checkpoint
Sysplex Considerations
SYSPLEX, overview
Policy
Parmlib members covered for SYSPLEX:
COUPLExx
System symbols and filtering within LOADxx
IEASYMxx
D SYMBOLS
Parmlib members covered for GRS:
IEASYSxx GRS
GRSCNFxx
GRSRNLxx
Data in Memory
Use of Coupling Facility
Use of Virtual Storage
Parmlib members covered for LLA and VLF:
CSVLLAxx
COFVLFxx
SMF and GTF
Overview of SMF
Description
of important SMF record types
The SMF Header
Parmlib members covered for SMF:
SMFPRMxx
Parmlib members covered for GTF:
GTFPARM
General System Recovery, Diagnostic Facilities and SMP/E
Recovery flow
system recovery
task recovery
User dumps, system dumps, DAE
ADYSETxx
User dump tailoring
System Dump Data Sets
SMP/E overview
Devices and Related Parameters
Parmlib members covered:
VATLSTxx
CONFIGxx
IECIOSxx
ALLOCxx
DEVSUPxx
IGDSMSxx
Device information and HCD
PAV
The role of the Workload Manager in PAV
Configuration and device display commands
D M
D CONFIG=xx
Channels: ESCON, FICON CF links and OSA
Comparison of channel types
Terminology - ESCON/FICON
Cabling rules cascading configurations
ESCON Directors
HCD and ESCON/FICON
ESCON manager
OSA connections
