Evaluate hardware resource needs according to your migration approach. For example, if you plan to use the parallel-with-replication method. you may need additional disk space to install a secondary system, a Replication Server for the high availability environment, a disk farm for backout strategies, and more memory.
The Release Bulletin for your platform contains information about any hardware requirements.
See the installation guide for your platform for basic RAM requirements. See Chapter 6, “Implement: Making Database Administration Changes” for more information on memory requirements.
See the System Administration Guide or information on memory and backups.