Posts

Showing posts with the label Alternate

Dataguard: Redoroutes for Alternate Destinations Redo data Transport failover

Using the RedoRoutes Property for Remote Alternate Destinations within a Dataguard environments. The RedoRoutes property can be used to set up a remote alternate destination so that a terminal Standby Database ( Standby DB, Cascade Standby DB, FarSync DB) can still receive redo data even if the Standby Database from which it was receiving the redo data fails. In this example below we have a primary cdb1 who send his redo data to the farsync instance. The farsync cdb1fs send the redo data to the standby database cdb2. See the instructions for building the dataguard environnment " MaxAvailability DataGuard environment : Adding a far sync instance to the environment ". Is it possible to configure a setup, when the primary database, cdb1, send the redo data directly to standby database CDB2 in a case that the farsync csb1fs is not available.  And when the FAR SYNC instance cdb1fs is operational again the configuration is operational again as designed.