Great detailed step by step to build a good RAC cluster from commodity hardware
Build Your Own Oracle RAC Cluster on Oracle Enterprise Linux and iSCSI: "Build Your Own Oracle RAC Cluster on Oracle Enterprise Linux and iSCSI
by Jeffrey Hunter
Learn how to set up and configure an Oracle RAC 10g Release 2 development cluster on Oracle Enterprise Linux for less than US$2,700.
The information in this guide is not validated by Oracle, is not supported by Oracle, and should only be used at your own risk; it is for educational purposes only.