SFRAC 5.1P3 is the first version supporting 11gR2 RAC, including full cluster membership and coordination with Oracle Clusterware.
Currently SFRAC on Linux is certified for use only
with 11gR2 RAC. We continue to support Oracle 10gR2 & 11gR1 RAC on Linux with our SFCFRAC 5.0 & 5.1 products.
Resources:
Hardware Compatibility List
Comprehensive Oracle RAC Certification Matrix
Download P3 patch