IBM OS/390 User Manual

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Chapter 30. Systems Management Philosophy and Methodology
Many VSE installations have small staff and have mature systems which are
changed relatively infrequently. As a user migrates from VSE to OS/390, their
entire system -- hardware, software, and connections -- will be subject to more
frequent changes. The workloads supported by their system will grow in
complexity and criticality to their business. At the same time, many of the tools
and methods for managing the VSE environment will become obsolete, and new
techniques and tools will have to be learned and implemented. In this chapter,
we will discuss the opportunities to implement more formal system management
procedures, the IBM products that can support these procedures, and the
benefits that OS/390 users receive from the implementation of these procedures.
It is not the intent of this chapter to describe specific tools, methodologies, or
services in great technical detail. The practice of system management
disciplines can provide great benefits of productivity and time savings during a
migration, especially as all personnel involved are working with new tools and in
new environments.
The VSE/SP and VSE/ESA systems and MVS and OS/390 systems have some
conceptual similarities, but due to the scope of changes that must be made
during a migration, the migration project is an ideal opportunity to introduce
more formal system management disciplines. The following specific disciplines
will be discussed below:
 1. 30.1, The Philosophy of Systems Management
 2. 30.2, Change Management
 3. 30.3, Problem Management
 4. 30.4, Performance Management
 5. 30.5, Operations Management
 6. 30.6, Security Management
 7. 30.7, Configuration Management
 8. 30.8, Asset Management
 9. 30.9, Accounting Management
These topics will be discussed in order within this chapter.
30.1 The Philosophy of Systems Management
30.1.1 Systems Management Overview
System management is responsible for delivering effective and efficient
information technology services, and becomes more critical as the number of
components, workloads, changes, and overall complexity increases.
Systems Management disciplines are aptly named -- through exercise of these
disciplines, we learn to manage our system in a better manner -- with the result
being a system better able to service the needs of all the different classes of
users of the computer system.
 Copyright IBM Corp. 1998 
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