What happened to Oracle Parallel Fail Safe in Oracle9i?
Oracle Parallel Fail Safe is an enhanced configuration that integrates Oracle’s best HA features with those of our systems vendor partners, providing the best possible availability. In Oracle9i this feature is fully integrated into Real Application Clusters. Oracle Parallel Fail Safe continues to be offered for Oracle8i but has been renamed to Oracle9i Real Application Clusters Guard to reflect this new packaging. The functionality is consistent between the two products.