The image shows two customer data centers and an OCI region. The customer data centers are almost identical. The second data center is for disaster recovery. The first data center has a production environment and non-production environment, while the disaster recovery data center is configured with a disaster recovery environment.

All customer data centers have environments with two private subnets. One subnet contains the applications and middleware, while the other is a database subnet with Oracle Exadata Database Service on Cloud@Customer. The applications and middleware subnet contains Oracle Compute Cloud@Customer.

The database subnets connect to storage (Oracle Zero Data Loss Recovery Appliance and a local network file system backup destination). A remote backup connects the database subnets to the service gateway in the OCI region. Oracle Data Guard synchronizes the production and disaster recovery databases.

Oracle Exadata Database Service on Cloud@Customer includes a Control Plane Server (CPS) infrastructure that connects to the OCI region for cloud automation and administration. The CPS is shown to connect to a switch or router, which directs traffic to and from the CPS, network time protocol (NTP) server, and domain name system (DNS) server.

The customer premises equipment (or CPE) connects to customer edge via OCI FastConnect and Oracle Edge, which connects to the dynamic routing gateway in the OCI region.

The OCI region contains an OCI Services Network where the service gateway is configured. The OCI Services Network includes the following services: