Introduction to z/OS

Description

This class introduces the newcomer to the world of z/OS. After explaining the organization of mainframe hardware, it examines how work is performed and how programs run in the z/OS environment. Concepts, terminology and acronyms associated with z/OS, OS/390 and MVS/ESA are explained, as is the relationship of z/OS to the world of PCs, and UNIX. The student will be introduced to the features and functions commonly used in MVS, including:* The purpose of MVS* The operating system structure* Virtual storage and paging* Disk, tape and dataset organization* TSO* JCL* Related software productsThe structure and features of JES2 are also presented, including:* The purpose of JES2* Job flow in JES2* Job and report classesThe impact of SMS on MVS processing is detailed by reviewing its effect on a typical dataset during its life cycle. The benefits of SMS are presented, as well as the impact of SMS on MVS JCL.

Audience:

• This course is designed for programmers, analysts, technical support personnel, operators and managers working in a z/OS environment.

Objectives By the end of this course, students will be able to:

• Describe the concepts underlying IBM zSeries computer systems in general (hardware: processors, memory, tape, disk, devices in general; software: operating systems, application environment, application programs)
• Correctly use terms related to mainframe computer systems: such as data set / file, fields, records, data set organization
• Understand terms specifically related to z/OS, such as DDname, data set name, PDS, PDSE, VSAM, label, VTOC, directory, catalog, TSO, ISPF, JCL
• Describe the role SMS (System Managed Storage) plays in z/OS
• Describe the roles played in application development of CLIST, REXX, JCL, and TSO/ISPF
• Describe the role of Unicode in the mainframe world, and the support for Unicode provided in z/OS
• Describe capabilities of the latest IBM compilers for COBOL, PL/I, and C as well as the Assembler, the binder, and Language Environment
• Describe the capabilities of DB2, in broad, general terms, and understand the salient features of the latest version of DB2
• Compare and contrast the two major transaction processing environments CICS/TS and IMS, and the role of MQSeries
• Describe the facilities available under z/OS for running UNIX applications, including a web server and email
• Navigate through ISPF and use ISPF Utilities • Navigate between UNIX and MVS in TSO and ISPF