Online 390 Version eLearning

OS 390 Intro to Parallel Sysplex This course introduces the OS/390 Parallel Sysplex environment. It discusses the evolution of OS/390, the software and hardware requirements that support Parallel Sysplex, workload balancing, and automation. In addition, it discusses the advantages that Parallel Sysplex provides to different environments. This course is written to OS/390 version 2.x. This course is designed for professionals  more...

OS 390 Introduction This course is an introduction to the IBM OS/390 integrated network operational environment. OS/390 presents all the elements of the S/390 system in one integrated package. This course provides a brief background to mainframe systems, and describes the basic functional areas of the OS/390 environment. The course describes the evolution of OS/390 from IBM's original MVS system and provides a  more...

OS 390 MVS JCL Introduction This course provides detailed information about Job Control Language and methods for coding it to perform data processing jobs in an MVS environment. The course reviews the overall structure and purpose of JCL and introduces the three main JCL statements. The course then covers the coding of the JOB and the Execute (EXEC) statements in detail. It also describes how to analyze job output listings,  more...

OS 390 MVS ESA Fundamentals of VSAM Part I This course covers the concepts needed to design, or code, applications that use the Virtual Access Storage Method (VSAM). It begins with an overview of VSAM, describes what VSAM does for application programs that request its services, the four types of VSAM datasets, followed by a detailed explanation of the VSAM entry-sequenced dataset. The course then examines the physical organization of a  more...

OS 390 Designing DB2 Data Warehouse This course is an overview of IBM's DB2 mainframe relational database management system. It explains basic functions, features and elements of DB2 for OS/390 (known simply as DB2) and its interactions with the MVS environment. The course briefly reviews the development of DB2, including enhancements to Version 6, DB2 Universal Database for OS/390. It then familiarizes the student with the basic  more...

OS 390 ISPF Programming Dialogs This course builds on the concepts introduced in OS/390 ISPF Dialog Management Services (38081), which provided an overview of the possibilities when using ISPF dialogs. This course shows how to code a sample dialog in ISPF, based on an extended real-world example. At the end of the course, the student has coded a complete dialog, including panels, menus, help panels, functions, variables, tables,  more...

OS/390 CICS/ESA Concepts This course explains the basics of the Customer Information Control System (CICS). It focuses on the single-system environment but also discusses CICSplex and other CICS intercommunication facilities. CICS is IBM's general purpose online transaction processing (OLTP) software, which is used by many organizations to handle transaction processing needs. Some topics discussed in this course are  more...