Introduction to NonStop Operations Management

Performance Management
Introduction to NonStop Operations Management–125507
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Step 5—Reporting Results
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Each change made to the system affects a number of different system resources.
Introducing change in a gradual, planned manner allows you to observe the system-
wide effect of a change before trying more changes.
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If multiple measurements are performed concurrently, the measurements should be
coordinated through a single group at each site. If several people want to measure
the same resources at the same time, it is most efficient to perform one all-inclusive
measurement and have the people share the data.
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If the performance problem continues, the problem might be caused by a lack of
capacity or by an application that is poorly designed. Applications should be
tunable. An application is tunable if you can move application processes from one
processor to another and if the application can expand linearly. Linear expansion
allows you to create additional processes to handle increased activity.
Step 5—Reporting Results
Weekly performance-analysis-and-tuning reports help track problems and resource
usage. It is helpful to have reports that:
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Summarize the data collected during the week
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List service goals and how well the goals were met
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Summarize actions taken (if any) to improve performance
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Summarize how the resources were used (for planning and accounting purposes)
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Summarize outstanding issues