573 research outputs found

    High Availability and Scalability of Mainframe Environments using System z and z/OS as example

    Get PDF
    Mainframe computers are the backbone of industrial and commercial computing, hosting the most relevant and critical data of businesses. One of the most important mainframe environments is IBM System z with the operating system z/OS. This book introduces mainframe technology of System z and z/OS with respect to high availability and scalability. It highlights their presence on different levels within the hardware and software stack to satisfy the needs for large IT organizations

    Database machines in support of very large databases

    Get PDF
    Software database management systems were developed in response to the needs of early data processing applications. Database machine research developed as a result of certain performance deficiencies of these software systems. This thesis discusses the history of database machines designed to improve the performance of database processing and focuses primarily on the Teradata DBC/1012, the only successfully marketed database machine that supports very large databases today. Also reviewed is the response of IBM to the performance needs of its database customers; this response has been in terms of improvements in both software and hardware support for database processing. In conclusion, an analysis is made of the future of database machines, in particular the DBC/1012, in light of recent IBM enhancements and its immense customer base

    Enterprise storage report for the 1990's

    Get PDF
    Data processing has become an increasingly vital function, if not the most vital function, in most businesses today. No longer only a mainframe domain, the data processing enterprise also includes the midrange and workstation platforms, either local or remote. This expanded view of the enterprise has encouraged more and more businesses to take a strategic, long-range view of information management rather than the short-term tactical approaches of the past. Some of the significant aspects of data storage in the enterprise for the 1990's are highlighted

    Development of information systems in Zastava and the future with Fiat

    Get PDF
    Necessitate for information technology in business is undeniable. The company "Zastava" from Kragujevac realized this fact at the very beginning of its development and has improved business in the direction of continuous progress in the field of information technology. Following the progress of IT sector, "Zastava", we can practically follow the development of information technology. The IT development in “Zastava” has started in early 1960 by establishing the Office for the organization and systematization. The first IT organizational unit in the factory "Zastava" was Electromechanical department. The first computer for automatic data processing ever installed in an industrial company in Yugoslavia, was in that department. End of sixties and the seventies were characterized by remote and automatic data processing, while the eighties introduced distributed data processing. Nineties followed the idea of information system based on the principles of integrity and data distribution. Today IS in "Zastava" relays on the integral PC and network technology. This segment of company, unfortunately, has suffered great damage during the bombing in 1999, but then it continued development and now are based on a modern technological solutions. The Memorandum of strategic cooperation between FIAT and “Zastava” has been signed on May 2008. According to estimates of leaders in the Zastava’s IT sector, the main direction of development will continue, and they expect further investment in the IT. They also expect that FIAT will probably apply the model they already used in the similar arrangements - a separation of IT department and forming a new company whose services will be used by the factory (outsourcing model)

    BS News November/December

    Get PDF

    BS News

    Get PDF

    An evaluation of integrity control facilities in an AS/400 environment

    Get PDF
    M.Com. (Computer Auditing)Both the auditor, faced with the task of determining an effective and efficient audit approach, as well as management, charged with implementing and monitoring need purer security, need to evaluate integrity controls. This need to evaluate integrity controls is increasing, due to the growing complexity of computer environments, the breakdown of the paper audit trail, and the replacement of application controls by integrity controls. By applying the Access Path and Path Context Models, an evaluation was performed of integrity controls and risks in an AS/400 environment. The operating system (08/400) was delineated into functional categories to assist in the evaluation, in a manner consistent with that outlined in the Access Path Model. It was found that sufficient integrity control facilities exist in an AS/400 environment to meet the control objectives, although several risks were identified which could only be addressed by application controls

    Proceedings of the NSSDC Conference on Mass Storage Systems and Technologies for Space and Earth Science Applications

    Get PDF
    The proceedings of the National Space Science Data Center Conference on Mass Storage Systems and Technologies for Space and Earth Science Applications held July 23 through 25, 1991 at the NASA/Goddard Space Flight Center are presented. The program includes a keynote address, invited technical papers, and selected technical presentations to provide a broad forum for the discussion of a number of important issues in the field of mass storage systems. Topics include magnetic disk and tape technologies, optical disk and tape, software storage and file management systems, and experiences with the use of a large, distributed storage system. The technical presentations describe integrated mass storage systems that are expected to be available commercially. Also included is a series of presentations from Federal Government organizations and research institutions covering their mass storage requirements for the 1990's
    corecore