This image shows a warm standby deployment in the cloud. There is an on-premises customer data center and an Oracle Cloud Infrastructure Region, with an external DNS, a VPN, and FastConnect connecting them.

The on-premises data center has 2 web servers connected to a database. The database has SAN storage and a storage gateway that uses Oracle Cloud Infrastructure FastConnect to connect to the Oracle Cloud Infrastructure Region. The region has a VCN with 3 Availability Domains (AD1, AD2, and AD3). Object Storage with 2 buckets resides outside the VCN.

AD1 and AD2 each contain a Load Balancer, Web Server, Database, and Block Storage. AD2 is empty.