The new features of Oracle 10g Data Guard were developed with the following goals in mind:
Ease of use
Improved manageability and flexibility
Improved degree of high availability
Tight integration of other 10g high-availability features such as Flashback
Low infrastructure cost
The general improvements to the Data Guard environment include the introduction of Real Time Apply, integration of the latest flashback support, advanced security support with authentication and encryption, specifying role-based destinations, and improved Data Guard configuration management. New features with 10g Release 2 include Automatic Failover Flashback Database support across switchovers, and improved asynchronous redo ...