Reviewing the Quality of Service Requirements
The logical architecture identifies the Java ES components that provide the services named in the requirements, but does not tell you how you should install the components on your network. In a typical production deployment you satisfy quality of service requirements such as response time, service availability, and service reliability by installing and configuring multiple instances of the components and distributing the components among several computers. For example, you could provide failover capability for your portal service by configuring multiple instances of Portal Server on multiple computers behind a load balancer.
To review the quality of service requirements for the SunWeb deployment, see the following sections in Chapter 2:
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