Preconfiguration for Data Guard

The Data Guard configuration contains a primary database that transmits redo data to a standby database. The standby database is remotely located from the primary database for disaster recovery and backup operations. You can also configure the standby database at the same location as the primary database. However, for disaster-recovery purposes and to make it highly available, it's strongly recommended to configure standby in a geographically remote location.

Before implementing a Data Guard configuration, take into account concepts such as high data availability, efficient systems utilization, and data protection.

• Availability: Outages should be tolerated transparently and should be recovered quickly in case of server failures or any network failures

• Protection: Ensure minimum data loss; standby data should be isolated from production faults such as storage failures, site failures, data corruptions, or operator errors

• Utilization: Standby resources should...