Description of the illustration architecture-single-domain.png

The illustration is an annotated diagram depicting a typical single domain Oracle Cloud Infrastructure deployment, connected to a customer data center and containing one data availability domain and one Oracle Cloud Infrastructure instance.

There are seven numbered callouts in the illustration:

  1. Availability Domain
  2. Fault Domain (FD)
  3. Bastion Host
  4. Load Balancer Tier
  5. Application Tier
  6. Database Tier
  7. Backup and Recovery

Each callout is described in the surrounding text.

At the top of the image an icon represents the Customer Datacenter. Below is a large box labeled Oracle Cloud Infrastructure (Region). The Customer Datacenter is connected to a Dynamic Routing Gateway (DRG) within the region by two arrows, labeled VPN and FastConnect. The DRG is on the border of a dotted-line box within the Oracle Cloud Infrastructure region, labeled Virtual Cloud Network (10.0.0.0/16). Adjacent to the gateway is a cloud icon, also on the border of the dotted-line box, labeled Internet Gateway.

Within the VCN is a large blue box labeled Availability Domain 1. Four solid lines, each labeled Security List, cut across the diagram within the VCN, and extend out to the side of the diagram, beyond the border of the Oracle Cloud Infrastructure region. The first Security List line separates the DRG from the Availability Domain.

Within the Availability Domain 1 are three boxes representing subnets: first, Public Subnet A on top, then a second Security List line, then Private Subnet B, then the third Security List line, and finally Private Subnet C, followed by the fourth Security List line.

Within the Public Subnet A are three components: a Bastion Host component, containing an icon representing Fault Domain (FD) 1; a Load Balancer component; and a Web Servers component, containing two icons labeled Fault Domain 1 and Fault Domain 2. The Load Balancer is connected to the Web Servers component by a double-ended arrow.

Within Private Subnet B are two components: an Admin Server component, containing an icon labeled Fault Domain 1; and a WebLogic Servers - Cluster 1 (Managed Servers) component, containing two icons labeled Fault Domain 1 and Fault Domain 2. The Web Servers component from the Availability Domain 1 is connected across the Security List line to the WebLogic Servers - Cluster 1 component of Private Subnet B.

Within Private Subnet C is a single icon labeled Managed Database System. Private Subnet C is connected across the Security List line to the WebLogic Servers - Cluster 1 component of Private Subnet B by a double-ended arrow.

Below the fourth Security List line is an icon on the bottom border of the VCN, labeled Service Gateway.

Below the Service Gateway, and outside the VCN, is a box labeled Oracle Cloud Infrastructure Service. Within the box are five icons labeled ID and Access Management, Object Storage, Auditing, Telemetry Alerting, and Healthcheck. A double-ended arrow labeled RMAN Backup connects the Object Storage icon to the Managed Database System, through the Service Gateway and across the lowest Security List line, to the Managed Database System in the Private Subnet C component.