The image shows an OCI (Frankfurt) region and an Azure Germany West Central (Frankfurt) region connected through Oracle Database Service for Azure.

The OCI (Frankfurt) region consists of Key Vault, IAM, Object Storage and an Availability Domain with a VCN - Prod containing Private Subnet 1 and Private Subnet 2.

Private Subnet 1 contains a Primary ExaDB-D connected to the Application inside VNet - Prod in Azure Germany West Central (Frankfurt) region via FastConnect on the OCI side and Azure ExpressRoute through VNet Peering on the Azure side.

The Azure Germany West Central (Frankfurt) region also contains Active Directory, Application Insights, and Log Analytics.

The same setup is replicated for disaster recovery with OCI (Amsterdam) region and Azure West Europe (Amsterdam) region below.

The VCN - Prod in OCI (Frankfurt) region connects to the VCN - DR in OCI (Amsterdam) region DRG via Remote VCN Peering. The Primary ExaDB-D in OCI (Frankfurt) region is connected to the Remote Standby ExaDB-D in OCI (Amsterdam) region via Data Guard.

The application in Azure Germany West Central (Frankfurt) region is connected to the application in the Azure West Europe (Amsterdam) region via Azure Site Recovery. The VNet - Prod in Azure Germany West Central (Frankfurt) region is connected to VNet - DR in Azure West Europe (Amsterdam) region via Remote VNet Peering.

An On-Premises Datacenter is connected to the two Azure regions with Active On-Premise Connection for Azure Germany West Central (Frankfurt) region and Standby On-Premise Connection for Azure West Europe (Amsterdam) region.