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Figure 3. Basic Three-Tier Deployment Topology

With three OracleAS servers, the components in the three-tier model can be distributed

for improved performance. An example is illustrated in Figure 4. The first middle tier

server hosts the Portal/Wireless components and the second middle tier server hosts the

Business Intelligence/Forms components. J2EE and Web Cache components are also

installed on both middle tier servers. The Infrastructure tier is implemented on the third

server. Splitting the components across three servers minimizes contention for server

resources, while still allowing coordination between the components. This topology

provides reasonable performance with a minimal server count, and this is the topology

utilized in the installation example below.

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Dell PowerEdge Web Server Guía de instalación Pagina 15