List of Figures

1-1 Typical Data Guard Configuration

2-1 Possible Standby Configurations

5-1 Archiving Redo Logs

5-2 Redo Log Reception Options

5-3 Data Guard Configuration with Dependent Destinations

5-4 Primary Database Archiving When There Is No Standby Database

5-5 Basic Data Guard Configuration

5-6 Archiving to a Physical Standby Destination Using the Logwriter Process

5-7 Archiving to a Logical Standby Destination Using the Logwriter Process

6-1 Automatic Updating of a Physical Standby Database

6-2 Automatic Updating of a Logical Standby Database

7-1 Role Transition Decision Tree

7-2 Data Guard Configuration Before a Switchover Operation

7-3 Standby Databases Before Switchover to the New Primary Database

7-4 Data Guard Environment After Switchover

7-5 Failover to a Standby Database

8-1 Standby Database Open for Read-Only Access

12-1 Archiving Operation to an Alternate Destination Device

12-2 Specifying Disk Quota for a Destination

B-1 Standby Database in Manual Recovery Mode

B-2 Manual Recovery of Archived Logs in an Archive Gap

C-1 Archiving Redo Logs from a Multi-instance Primary Database

C-2 Standby Database in Real Application Clusters

D-1 Cascaded Redo Log Destination Configuration Example