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IBM Systems Journal

Issue 1 • 1989

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Displaying Results 1 - 12 of 12
  • Preface

    Publication Year: 1989, Page(s):2 - 3
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (798 KB)

    This issue of the IBM Systems Journal focuses on the role of large systems and the evolution of the architectural enhancements used to meet present application requirements. Those enhancements provide the capabilities to allow expansion to meet the demands anticipated in the 1990s. View full abstract»

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  • Large systems and Enterprise Systems Architecture

    Publication Year: 1989, Page(s):4 - 14
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1849 KB)

    A number of diverse factors have influenced the development of IBM's Enterprise Systems Architecture. They range from the compatibility and migration considerations so important for preserving customer investments in existing applications and data, to new functional and capacity requirements of our customers, to the implications of emerging technologies and the projection of these into the systems... View full abstract»

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  • Enterprise Systems Architecture/370: An architecture for multiple virtual space access and authorization

    Publication Year: 1989, Page(s):15 - 38
    Cited by:  Patents (4)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (2792 KB)

    The Enterprise Systems Architecture/370™ provides a significant step in the IBM System/370 evolution by providing new capabilities for virtual addressing and program linkage across multiple address spaces. This paper reviews the evolution that led to this advance and illuminates the goals, such as eliminating growth constraints and improving security, integrity, reliability, and performance... View full abstract»

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  • Concepts of Enterprise Systems Architecture/370

    Publication Year: 1989, Page(s):39 - 61
    Cited by:  Patents (4)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (2439 KB)

    Enterprise Systems Architecture/370™ (ESA/370™) is the next step in the architectural evolution of IBM's large processors from System/360 to System/370 to System/370 Extended Architecture (370-XA). ESA/370 includes all of the facilities of 370-XA and also significant new facilities. It greatly increases the amount of apparent main storage that is readily available for use. It provide... View full abstract»

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  • Storage hierarchies

    Publication Year: 1989, Page(s):62 - 76
    Cited by:  Papers (10)  |  Patents (19)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1927 KB)

    The storage hierarchy is a natural structure, given the set of available technologies and their price and performance characteristics. The physical structure of the storage subsystem is described, and the flow of data through the system is traced. The concept of a storage hierarchy is discussed, and the specific components of the IBM storage hierarchy from the processor high-speed buffer (HSB) to ... View full abstract»

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  • System-managed storage

    Publication Year: 1989, Page(s):77 - 103
    Cited by:  Papers (11)  |  Patents (36)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (2693 KB)

    In early 1988, IBM announced the Data Facility Storage Management Subsystem (DFSMS™), comprising functions in MVS/DFP™, other products in the Data Facility family, and RACF. This announcement constituted a major step in the realization of system-managed storage. The need for system-managed storage was established in the late 1970s and early 1980s, through growing customer requirement... View full abstract»

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  • Multiple operating systems on one processor complex

    Publication Year: 1989, Page(s):104 - 123
    Cited by:  Papers (11)  |  Patents (44)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (3882 KB)

    As large computing systems continue to grow in capacity and to offer improved price/performance, there is an increasing requirement to consolidate systems onto one processor complex. This paper describes the reasons why users need to run multiple operating systems today, provides a brief history of IBM's partitioning products, and introduces the Processor Resource/Systems Manager™, a machin... View full abstract»

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  • The facilities and evolution of MVS/ESA

    Publication Year: 1989, Page(s):124 - 150
    Cited by:  Patents (5)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (2487 KB)

    As new processors were developed with new capabilities, the Multiple Virtual Storage (MVS) operating system was modified and enhanced to utilize the latest advances. The most recently available processors are structured on Enterprise Systems Architecture, and MVS has evolved to be a part of this architecture as MVS/ESA™. This paper describes the changes that occurred in MVS and the faciliti... View full abstract»

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  • MVS data services

    Publication Year: 1989, Page(s):151 - 164
    Cited by:  Papers (1)  |  Patents (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1870 KB)

    The IBM Enterprise Systems Architecture/370™ vastly increases the potential virtual addressability available to both system and application programs. The I/O model and the application model of permanent data are discussed to illustrate how large virtual addressability can be used to simplify application programs and improve performance. New MVS services that exploit the architecture are des... View full abstract»

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  • VM/XA SP2 minidisk cache

    Publication Year: 1989, Page(s):165 - 174
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1527 KB)

    Given the growing disparity between CPU power and the speed of secondary storage, a data cache exploiting large processor storage has the potential to improve response time dramatically in many situations. The VM/XA SP2 minidisk cache facility, the result of research activity on the characteristics of interactive file-system activity, uses expanded storage to cache input/output to minidisks on the... View full abstract»

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  • VM/XA storage management

    Publication Year: 1989, Page(s):175 - 191
    Cited by:  Patents (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (2593 KB)

    The VM/XA System Product manages the vast amounts of real and expanded storage available on the new Enterprise Systems Architecture/370™ processors for both guest use and support of internal operating system functions. The management algorithms are examined, and the rationale for their selection is presented. View full abstract»

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  • Books

    Publication Year: 1989, Page(s): 192
    IEEE is not the copyright holder of this material | PDF file iconPDF (977 KB)
    Freely Available from IEEE

Aims & Scope

Throughout its history, the IBM Systems Journal has been devoted to software, software systems, and services, focusing on concepts, architectures, and the uses of software.

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Meet Our Editors

Editor-in-Chief
John J. Ritsko
IBM T. J. Watson Research Center5