Objectives

The Multiple Virtual Storage (MVS) operating system is well known as the IBM flagship of operating systems. It was first included in the OS/390 family, and actually it is part of the z/OS product.

During this course, participants:

• get an insight in the meaning of MVS as operating system;
• understand the basic concepts of z/OS and its subsystems;
• learn to interpret the MVS features in the context of z/OS;
• become familiar with the z/OS environment;
• get an insight in the evolution of MVS to z/OS.

Main topics

• Hardware:

CPU • storage • channel subsystem • peripheral devices • network • multi-processing • LPAR • sysplex

• Concept of MVS:

virtual and real storage • paging • address spaces • system initialisation (IPL)

Evolution of MVS to z/OS

• Task management • storage management • resource and workload management
• Data management:

access methods • data organisation • the catalog • storage management subsystem (SMS)

• JES and job management
• Recovery and monitoring
• z/OS subsystems:

user interaction (TSO and ISPF, UNIX shell) • security (RACF) • data communication monitors • database management systems • SDSF • Web based access (HTTP, WebSphere Application Server, MQ) • ...