One of the DataGuard broker: an introduction to DataGuard broker

After taking a look at DataGuard broker, it feels good, and after testing it, consider whether to configure it in a production environment. [@ more@] The Data Guard broker is a distributed management architecture for automatically creating, maintaining, and monitoring dataguard configurations.

You can use OEM (graphical interface) or DGMGRL (command line) to do the following:

one. Create and activate dataguard configurations, including setting up redo transport services and log apply services

two. The entire dataguard configuration (all primary and standby libraries) in this configuration can be managed on any system.

three. Manage and monitor dataguard configurations that contain RAC primary or standby databases

four. Simplify the role switching operation, as long as a command from DGMGRL or a button from OEM can perform switchover or failover

five. Fast-start failover can be activated to automatically failover when the main library is not available.

When this feature is activated, Data Guard broker determines whether failover is required

And start automatically failover to the specified target standby database without DBA interference and data loss.