Installation guide

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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.