Technical data

Recommended Topologies
1-2 Advanced Topologies for Enterprise Deployments
■ Introduce Oracle Enterprise Manager as a one-stop management tool for
managing an enterprise.
To learn more about
Oracle Application Server concepts, see Oracle Application
Server 10g Concepts.
For requirements and installation information for each of the topologies, see Chapter
11 of the Oracle Application Server 10g Installation Guide.
1.2 Recommended Topologies
The following sections describe several configurations in an enterprise topology:
■ Enterprise Data Center Topology: J2EE Applications
■ Departmental Topology
■ Development Life Cycle Topology
1.3 Enterprise Data Center Topology: J2EE Applications
This deployment topology is optimized to support J2EE applications. It contains the
components required to run J2EE applications in a secure, high availability
environment.
If you have applications that use components from the Portal and Wireless or the
Business Intelligence and Forms middle tier types, see Section 1.4, "Enterprise Data
Center Topology: Portal, Wireless, and Business Intelligence Applications".
Target Users
This topology is intended for enterprises who have users internal as well as external to
the organization. Requests from external users go through firewalls.
Description
This topology (Figure 1–1) distributes Oracle Application Server components over
multiple computers and tiers. Access to the computers in each tier is guarded by
firewalls. Generally, you do not want Web servers, which are high risk components for
Internet attacks, to have direct access to other computers in the enterprise. You want
the requests to go through firewalls.
The distributed topology enables you to scale the number of computers in each tier (to
increase performance and availability) without affecting computers in other tiers. For
example, if you discover a bottleneck in the computers running OracleAS Web Cache
and Oracle HTTP Server, you can add more computers to run those components.