ABCs of System Programming Volume 5

An IBM Redbooks publication

Note: This is publication is now archived. For reference only.

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Published on 25 April 2000

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ISBN-10: 0738416215
ISBN-13: 9780738416212
IBM Form #: SG24-5655-00


Authors: Paul Rogers

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    Abstract

    This IBM Redbooks publication is Volume 5 of a five-volume set that is designed to

    introduce the structure of an OS/390 and S/390 operating environment.

    The set will help you install, tailor, and configure an OS/390 operating

    system, and is intended for system programmers who are new to an OS/390

    environment.

    In this Volume, Chapter 1 provides an description of a base and

    Parallel Sysplex. A sysplex is a collection of OS/390 systems that

    cooperate, using certain hardware and software products, to process

    work.

    Chapter 2 describes the MVS System Logger. System logger is a set of

    services that allows an application to write, browse, and delete log

    data. You can use system logger services to merge data from multiple

    instances of an application, including merging data from different

    systems across a sysplex.

    Chapter 3 describes Global resource serialization (GRS) which offers

    the control needed to ensure the integrity of resources in a multisystem

    environment. Combining the systems that access shared resources into a

    global resource serialization complex enables you to serialize resources

    across multiple systems.

    Chapter 4 describes the operation of an MVS system which involves

    console operations or how operators interact with MVS to monitor or

    control the hardware and software and message and command processing

    that forms the basis of operator interaction with MVS and the basis of

    MVS automation.

    Chapter 5 describes Automatic Restart Management (ARM) which is the

    key to automating the restarting of subsystems and applications

    (referred to collectively as applications) so they can recover work they

    were doing at the time of an application or system failure and release

    resources, such as locks, that they were holding. With an automatic

    restart management policy, you can optionally control the way restarts

    are done.

    Chapter 6 describes the hardware management console (HMC) which provides

    a single point of control to manage your central processor complex (CPC).

    Chapter 7 describes workload management which provides a way to

    define MVS externals and tune MVS without having to specify low-level

    parameters. The focus is on setting performance goals for work, and

    letting the Workload Manager handle processing to meet the goals.

    Chapter 8 describes problem diagnosis. MVS supplies many tools and

    service aids that assist with problem diagnosis. These tools includes

    dumps and traces, while service aids includes the other facilities

    provided for diagnosis.

    Table of Contents

     

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