New 11.2 Features Common to Redo Apply and SQL Apply
- As of Oracle Database 11g Release 2 (188.8.131.52), Oracle Data Guard is fully integrated with Oracle Real Application Clusters One Node (Oracle RAC One Node).
- A Data Guard configuration can now consist of a primary database and up to 30 standby databases.
FAL_CLIENTdatabase initialization parameter is no longer required.
- The default archive destination used by the Oracle Automatic Storage Management (Oracle ASM) feature and the fast recovery area feature has changed from
- Redo transport compression is no longer limited to compressing redo data only when a redo gap is being resolved. When compression is enabled for a destination, all redo data sent to that destination is compressed.
- The new
ALTER SYSTEM FLUSH REDOSQL statement can be used at failover time to flush unsent redo from a mounted primary database to a standby database, thereby allowing a zero data loss failover to be performed even if the primary database is not running in a zero data loss data protection mode. See Section 8.2.2 for more information.