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Portal Sizing
Chapter 4 Pre-Deployment Considerations 71
Use a trial deployment to determine your final sizing estimates. A trial deployment
helps you to size back-end integration, to avoid potential bottlenecks with Portal
Server operations.
Refine Baseline Sizing Figures
Your next step is to refine your sizing figure. In this section, you build in the
appropriate amount of headroom so that you can deploy a portal site that features
scalability, high availability, reliability and good performance.
Because your baseline sizing figure is based on so many estimates, do not use this
figure without refining it.
When you refine your baseline sizing figure:
• Use your baseline sizing figure as a reference point.
• Expect variations from your baseline sizing figure.
• Learn from the experience of others.
• Use your own judgement and knowledge.
• Examine other factors in your deployment.
If the Portal Server deployment involves multiple data centers on several
continents and even traffic, you need a higher final sizing figure than if you
have two single data centers on one continent with heavy traffic.
• Plan for changes.
A portal site is likely to experience various changes after you launch it.
Changes you might encounter include the following:
❍ An increase in the number of channels
❍ Growth in the user base
❍ Modification of the portal site’s purpose
❍ Changes in security needs
❍ Power failures
NOTE Refining baseline sizing requirements for a secure portal
deployment using SRA is covered in “SRA Sizing” on page 72.