Introduction to NonStop Operations Management

Introduction to NonStop Operations Management–125507
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Performance Management
Overview
Performance management helps you ensure that you get the best return from your
systems and that the systems meet your business needs. This section provides guidelines
for performance management tasks. In particular, this section covers:
•
How service-level agreements influence performance management
•
The applications-sizing, capacity-planning, and performance-analysis-and-tuning
functions
•
Tandem tools that help you in performance management
This section ends with a check list that summarizes the main points of performance
management.
What Is Performance Management?
Performance management is the process of managing the performance of your system
and network environment to ensure that you get the best return from your systems and
that the systems meet your business needs defined by your service-level agreements.
Performance management includes the following functions:
•
Application sizing is the process of forecasting the effects of new applications on
your system through the use of models to determine how well new applications will
handle their intended workloads. Application sizing helps you:
•
Plan for growth in system workloads caused by new applications
•
Determine how much capacity a new application will require
Note. The Availability Guide for Performance Management defines performance management
in detail. It explains how to measure system performance, analyze system performance
information, and optimize the performance of Tandem NonStop systems. It also defines key
performance terms, defines a framework for capacity planning and application sizing, and
describes the performance management tools provided by Tandem.
Note. Operations functions in areas such as security, disaster recovery, source and change
control, and organization and staffing might be affected when a new application is moved from
a development system to a production system. Section 11, “Application Management,”
discusses the operations functions that should be reviewed when an application moves from a
development environment to a production environment.