High Available Architectures and Capacity Planning with WebSphere Remote Server V6

136 HA Architectures & Capacity Planning with WebSphere Remote Server V6

7.1 Overview of capacity planning

Capacity planning is the process by which you determine which hardware

configuration meets the needs of your store adequately. When a middleware or

an application is released into production, you should be confident that the

chosen hardware configuration will help it function effectively and meet the

performance requirement goals.

Performance requirement goals are often referred to as

service goals or

service-level agreements. While these are usually defined by the management,

they are most likely to reflect the users’ expectations. Two simple, but key

performance requirements are:

򐂰 No single request should take more that eight seconds ...