R12.1 Technical Upgrade Assessment

The technical assessment investigates:

• Future Capacity Requirements
• Tech Stack Version Compatibility and Patch Levels, including CPUs
• Current Issues from Log files
• Current unresolved service requests
• Hardware

If the plan includes buying new hardware, consider migrating from the current 32-bit platform to a 64-bit platform. The following are reasons to migrate to a 64-bit environment:

• Release R12.1 doesn’t support running the Application Tier on a 64-bit hardware platform; however, Release 12 does support 64-bit architectures for the Application Tier.
• Release R12.1, Release 12, and Release 12.1 all support running the database on a 64-bit operating system, in a split or mixed architecture.
• There are five hardware platforms supported for Release 12.1 and all of the platforms support a 64 bit version.
• There are less memory restrictions on a 64-bit machine because of additional addressable memory.
• Because of more addressable memory, more users can be supported on each Application Tier.
• MRP and other programs run much more quickly in a 64-bit database.