The image shows a single-instance Oracle Database on Oracle Base Database Service with Oracle Data Guard across a Primary OCI Region and Standby OCI Region. The Primary and Standby regions are set up for Full Stack Disaster Recovery and data protection with Oracle Data Guard. The components are described in the surrounding text.

The OCI Region hosts an Availability Domain and OCI Managed Services.

The OCI Managed Services include OCI Vault, Oracle Database Autonomous Recovery Service, and OCI Object Storage.

The Availability Domain hosts a VCN with a Service Gateway and two subnets: Application subnet, and Database backup subnet.

The Database subnet hosts Oracle Database on Oracle Base Database Service which connects to OCI Managed Services through the Service Gateway.