IBM GC20-1800-0 VM370 Introduction Jul72 free download

File name GC20-1800-0_VM370_Introduction_Jul72.pdf

GC20-1800-0 IBM Virtual Machine Facility/370 : Systems Introduction The IBM Virtual Machine Facility/370 (VM/370) is a System Control Program (SCP) that has been designed specifically for the IBM System/370. VM/370 manages the IBM System/370 in such a way that mUltiple remote terminal users appear to have a dedicated computing system at their disposal. Within this "virtual machine" the user may run the operaHng system of his choice, subject to the restrictions noted in "Appendix C: VM/370 Restrictions" of this manual. The design of VM/370 is based on the IBM Control Program-67/Cam- bridge Monitor System (CP-67/CMS) which is executed on an IBM System/360 Model 67. The Conversational Monitor System (CMS) is the major subsystem ofVM/370. CMS provides problem solving and program development services to the user, as well as supporting facilities for a remote user who chooses to run some other operating system in his virtual machine. This manual provides introductory information about the facilities provided by VM/370, and defines the min- imum equipment configuration necessary for execution. Preface This manual provides introductory information on the IBM Virtual Machine Facility/370 (VM/370) and its associated subsystem, the Conversational Monitor Sys- tem (CMS), as well as an overview of the purpose and functions of VM/370. It is assumed that the user has a prior knowledge of virtual storage concepts as implemented on the IBM System/370 via dynamic address translation. The reader is referred to Part I of the student text publication Introduction to Virtual Storage in System/370, Order No. GR20-4260, for an introduction to the concepts and advantages of virtual storage. A basic knowledge of data processing systems, such as that given in the Introduction to IBM Data Processing Systems, Order No. GC20-1684, is assumed. More detailed information about System/370 is available in the publication IBM System/370 Principles of Opera- tion, Order No. GA22-7000, and the associated publica- tion IBM System/360 Principles of Operation, Order No. GA22-6821. For more information about any individual System/370 model, see the functional charac- teristics manual and the guide manual for that model. When the term 3330 is used in this publication, it refers to the IBM 3330 Disk Storage, Modell or the IBM 3333 Disk Storage, Modell. First Edition (July 1972) Changes are periodically made to the specifications herein; before using this publica- tion in connection with the operation of IBM systems, refer to the latest IBM System/360 and System/370 SRL Newsletter, Order No. GN20-3060, for the editions that are applicable and current. Requests for copies of IBM publications should be made to your IBM representative o