This image shows an on-premises university campus network connected to 2 Oracle Cloud
Infrastructure (OCI) regions: an active region in Ashburn and a disaster recovery (DR) region in Phoenix connected by remote peering. The
on-premises network includes a load balancer for faculty and student traffic and uses site-to-site VPN to connect to each
region.
Each region provides 3 availability domains (AD) and the following services:
- Oracle Cloud Infrastructure File
Storage
- Oracle Cloud
Infrastructure Database Management
- Oracle Cloud Infrastructure
Monitoring
- Oracle Cloud
Infrastructure Object Storage
Each region provides 1 VCN with the following gateways:
- Dynamic routing gateway (DRG): Provides private connectivity between on-premises networks and VCNs by using Site-to-Site
VPN or FastConnect. A DRG can also route traffic between VCNs for remote peering.
- Service gateway: VCNs communicate with services such as object storage over the Oracle network fabric without traversing the
internet.
Active region VCN: Provides 3 subnets, each with its own security list and route table:
- App production private subnet: Provides compute instances distributed across availability domains with application data replicated
to the production subnet in the disaster recovery region:
- AD1: Banner Admin, Job Submission, and Degree Works instances
- AD2: Banner Admin, Banner 8 SSB, and Ethos API instances
- AD3: Banner Admin, Banner 9 SSB, and Banner Events Publisher instances
- App non-production private subnet: Provides a similar topology to the production subnet but without a Degree Works instance.
- Database private subnet: Provides production and non-production instances of Oracle Base Database Service for Banner in AD1 and for Degree Works in AD3. Oracle Active Data Guard is used in conjunction with the database in the disaster
recovery region.
Disaster recovery region VCN: Provides 2 subnets, each with its own security list and route table:
- App production private subnet: Provides a similar topology to the production subnet in the active region but with the addition
of a RackWare instance in AD3.
- Database private subnet: Provides production instances of Oracle Base Database Service across availability domains:
- AD1: Banner and JobStub
- AD2: Foundation Banner and data warehouse instances
- AD3: Degree Works
