The image shows an architecture diagram of the process to migrate a database from on-premises to the cloud using Oracle Data Pump to export the data from on-premises to Oracle Cloud Infrastructure File Storage service in an Oracle Cloud Region.

The Oracle Cloud Region has a VCN, a Dynamic Routing Gateway, a Service Gateway and Object Storage for RMAN backup and restore. The region has one availability domain with a Private Subnet that contains application servers, a Public Subnet (Client), a Private Subnet (Backup), and an Oracle Database Exadata Cloud Service instance. The subnets have route tables and security lists. The Public Subnet contains the Oracle Cloud Infrastructure File Storage service. RMAN restore pulls from the Object Store through the Service Gateway to the Exadata DB System.

On-premises is Customer Premises Equipment (CPE), an Oracle Database Enterprise Edition (16 cores), storage, Data Pump, and Oracle Instant Client. There's a private connection between on-premises and the cloud that uses IPSec VPN and Oracle FastConnect.

In the on-premises data center, Oracle Instant client and the Oracle Data Pump import process use SQL*Net to send data both directions to the Exadata DB System. Backups are stored in Object Storage in the Oracle Cloud Region. Oracle Data Pump Export uses an scp connection to transfer data to Oracle Cloud Infrastructure File Storage, and then to the Exadata DB System.

Oracle RMAN Restore information flows both directions, through the service gateway, between Object Storage (Backup) and the Exadata DB System.