It is now possible to integrate the E-Business Suite Release 11i with OracleAS 10g, for the use of Single Sign-On, Oracle Internet Directory, Portal, Discoverer, Web Cache and Oracle Integration.
Integrated, Not Upgraded
The key concept is that Release 11i may be integrated with OracleAS 10g. The existing E-Business Suite application server, Oracle9i Application Server 1.0.2.2.2, is not upgraded to OracleAS 10g; the two instances are integrated together in a loosely-coupled architecture like this
Remember that if you want to upgrade your existing E-Business Suite 9iAS application server to OracleAS 10g, you'll be able to do that in Release 12. For Release 11i, it's always going to be an integration-based architecture.
One Server or Two?
The diagram above shows the existing E-Business Suite 9iAS services and the new external OracleAS 10g services running on two different physical servers. That's our recommended configuration, particularly if you're planning to upgrade from Discoverer 4i to 10g (due to the former's obsolescence in Oct 2006).
It's possible to install OracleAS 10g on the same physical server where 9iAS is installed... if you have sufficient resources available on that box. You must install OracleAS 10g in a separate ORACLE_HOME. OracleAS 10g cannot be installed into the existing E-Business Suite 9iAS ORACLE_HOME.
What Are The Main OracleAS 10g Components?
This is something new to E-Business Suite sysadmins, so you may have to review this a few times to let it sink in.
Architecturally, you should think of OracleAS 10g as being comprised of middle-tier (application tier) products and infrastructure services. Middle-tier products include Portal, Discoverer, and Oracle Integration.
The OracleAS 10g Infrastructure includes Single Sign-On, Oracle Internet Directory, and the actual LDAP database where user credentials are stored. In general, all of the OracleAS 10g middle-tier products share the same OracleAS 10g Infrastructure.
Middle-tier products like Portal have content such as portal page definitions, pictures, downloadable files, and so on. This content has metadata, too, which determines how content is displayed and accessed. All of this product-specific content and metadata is stored in a database called the OracleAS 10g Metadata Repository.
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