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ABCs of System Programming Volume 5

IBM Redbooks

ABCs of System Programming Volume 5

This redbook 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.
Price: $60.00
Pages: 426
Date Published: April 25, 2000
ISBN: 0738416215
Author: IBM Redbooks
Product Number: SG24-5655-00
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