Oracle University has a large number of free recorded webcasts for Oracle E-Business Suite.  Here’s an excellent webcast for a wide range of architectural options for more-complex deployment requirements:

• Advanced Architectures for Oracle E-Business Suite (27 mins)

Elke Phelps, Senior Principal Product Manager shares how to build on the three-tier logical Oracle E-Business Suite architecture to meet your business requirements for high availability, scalability, and performance. Topics include load-balancing and clustering. Understand how to securely deploy Oracle E-Business Suite for internet access with a demilitarized zone (DMZ). Apply various topics covered in the session to assist you with planning a disaster recovery project for your environment. Learn about new tools that automate scale-out and other advanced architectures when deploying E-Business Suite to the Oracle Cloud. This material was presented at Oracle OpenWorld 2016.