Data Guard
Active Data Guard

Real-time Oracle data protection, availability, and disaster recovery.

Data Guard Architecture Overview

Data Guard provides the management, monitoring, and automation software to create and maintain one or more synchronized copies of a production database to protect Oracle data from failures, disasters, human error, and data corruptions while providing high availability for mission critical applications. Data Guard is included with Oracle Database Enterprise Edition.

Active Data Guard Functionality

Active Data Guard is an option license for Oracle Database Enterprise Edition. Active Data Guard enables advanced capabilities that that extend basic Data Guard functionality. These include:

  • Real-Time Query - offload read-only workloads to an up-to-date standby database
  • Automatic Block Repair - automatic repair of physical corruption transparent to the user
  • Far Sync - zero data loss protection across any distance
  • Standby Block Change Tracking - enable incremental backups on an active standby
  • Active Data Guard Rolling Upgrade - make it simple to reduce planned downtime
  • Global Database Services - load balancing and service management across replicated databases. See Global Data Services
  • Application Continuity - make outages transparent to users. See Application Continuity