Oracle Active Data Guard enhances the Quality of Service (QoS) for production databases by off-loading resource-intensive operations to one or more standby databases, which are synchronized copies of the production database.

 

With Oracle Active Data Guard, a physical standby database can be used for real-time reporting, with minimal latency between reporting and production data. Additionally, Oracle Active Data Guard continues to provide the benefit of high availability and disaster protection by failing over to the standby database in a planned or an unplanned outage at the production site.

 

Active Data Guard provides a number of benefits

  • Read-only reporting, ad-hoc queries, and read-mostly applications can be offloaded to standby databases that are also used for disaster recovery thereby increasing available capacity

  • Improves response time by isolating competing workloads, and it increases return on investment (ROI) in standby systems while using the simplicity of physical replication

  • Physical block corruptions are repaired automatically wherever they occur, at either the primary or standby, preventing any interruption in service to users and eliminating manual intervention by administrators

  • Zero Data Loss protection can be implemented in configurations where primary and standby databases are separated by thousands of miles, without impacting primary database performance or requiring added complexity or high-cost proprietary storage or network devices. There is no longer a requirement to trade performance for data protection

  • Planned downtime is minimized and the risk of introducing many types of change to a production database environment is reduced using new automation that makes it much simpler and more reliable to perform database rolling upgrades

 

Active Data Guard is a licensed option for Oracle Database Enterprise Edition

 

More information on Oracle Data Guard can be found here.

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