Metalink Note 380489.1, Using Load-Balancers with Oracle E-Business Suite Release 12 Section 2.2: Using Hardware Load Balancers with Multiple Web Entry Points.
Sharing The Application Tier File System in Oracle E-Business Suite Release 12 [ID 384248.1] - Section 4: Adding a Node to a Shared Application Tier File System.
Using AutoConfig to Manage System Configurations in Oracle E-Business Suite Release 12 [ID 387859.1]
3.12 Configure Parallel Concurrent Processing section - (Doc ID 388577.1)