Managing performance on an i5/OS® server can be a complex task that requires a thorough understanding of work management. Resolving performance problems requires the effective use of a large suite of tools, each with its own unique set of requirements and supported functions.
Before you begin your planning tasks, complete these items:
| Before you begin | |
|---|---|
| __ | Identify stress on physical components of the configuration. |
| __ | Document trends and problems with your current performance environment. |
| __ | Identify future performance needs for your environment. |
| Performance planning tasks | |||
|---|---|---|---|
| __ | See the Performance Capabilities
Reference information Use the detailed technical information
in the Performance Capabilities Reference to do complex performance planning.
You can access various release levels of this publication on the Performance
Management |
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| __ | Plan for performance management
services The IBM® Electronic Service Agent™ can capture
performance information that can then be used for performance management.
You can access performance management services as an optional fee-based service.
For information about the Electronic Service Agent, see the Electronic Services |
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| __ | Identify performance considerations
for i5/OS release requirements Refer to the Install, upgrade, or delete the OS/400® and related software topic to identify the disk storage, CPU, memory, and other requirements of the i5/OS release. |
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| __ | Understand that you can upgrade
the capacity of your server Working with Capacity on Demand enables you to activate inactive processors on select models as changing business needs demand more resources. You can activate these processors for a trial period, on a set schedule, or on a permanently activate these processors. For more information on capacity planning see the Planning for Capacity on Demand topic. |
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Web site. When you have completed these tasks, you should have a plan for performance that identifies these elements:
| After you finish | |
|---|---|
| __ | Identify and record any necessary changes to the operating environment of your server, such as adding a large number of users or a significant software product. |
| __ | Identify and record any considerations for upgrading to a new i5/OS release, such as requirements for disk storage, CPU, and memory. |
| __ | Identify and record cache requirements. |
| __ | Identify and record interactive CPU or total processor capacity requirements. |
| __ | Identify and record memory requirements. |
| __ | Identify and record communications performance requirements. |
| __ | Identify and record database accessibility requirements as they relate to disk and disk device requirements. |
| __ | Identify and record performance considerations for replacing hardware or features that are no longer supported by IBM, for example, replacing SPD-based hardware with PCI-based hardware. |
| __ | Record a complete strategy for meeting the performance requirements of projected workloads. |