This image shows a multicloud architecture featuring Oracle Cloud
Infrastructure (OCI), Microsoft Azure, a third-party cloud with financial systems, and the internet used by Gas South customers.
Microsoft Azure provides a self-service portal for customers, an SQL database, Microsoft Business Intelligence, and an Attunity
connector.
The OCI region has 1 availability domain and 1 VCN. The region has access to Oracle Utilities Customer Cloud Service (CCS)
and its generalized data export (GDE). The region provides the following services:
- Oracle Cloud
Infrastructure Backup and Restore
- Oracle Cloud Infrastructure
Monitoring
- Oracle Cloud
Infrastructure Object Storage
- Oracle Cloud Infrastructure Vault
The VCN provides the following gateways:
- Internet gateway: Provides communications between public subnets and internet hosts. In this architecture, it handles the
communication traffic between OCI, Azure, and the financial systems cloud.
- Service gateway: VCNs communicate with services such as object storage over the Oracle network fabric without traversing the
internet.
The VCN provides the following subnets:
- Load balancer public subnet: Provides load balancing for SOA integration traffic from the financial cloud and from Microsoft
Business Intelligence and passes it to SOA managed servers in the SOA subnet.
- SOA private subnet: Provides Oracle SOA Cloud
Service with virtual machine (VM) instances for managed file transfer (MFT), SOA Suite admin server, and multiple SOA Suite managed
servers. Data from the managed servers is stored in a database in the database subnet.
- Database private subnet: Provides 2 Oracle Base Database Service instances: one for SOA data and one for staging GDE data. The staging database accepts data from object storage which originates
from GDE. The Attunity connector pulls log change data from the staging database.