History of the Mainframe environment
Presentation of the components of the z / OS
Architecture system
Layers, memory management, registers
Physical implementations of data: fixed-length, variable, blocked, unblocked, spanned records
File management mechanisms: sequential, PDS, sequential indexed
File access methods JES2
catalogs
, Spooling
Dispatcher, jobs, tasks

Workshop: handling of the z / OS environment – access to the file system.

General presentation
Parameter definition
Consultation
Editor
Utilities
TSO
SDSF commands, job monitoring

Workshop: Multiple orders via TSO and manipulation via ISPF.

Introduction to JCL
Notion of resource
Detailed orders: JOB, EXEC, DD and their parameters, rear references
Utilities: IEFBR14, IEBGENER, IEBCOPY, SORT… Conditional JCL
procedures
: IF, THEN, ELSE, ENDIF

Workshop: handling jobs using JCL

Detailed structure of AIX
IDCAMS files Disk space calculations Access optimization

Workshop: File access optimization