This image shows the subnets, ports, and data flows of the secondary,
stand-by environment on Oracle Cloud
Infrastructure (OCI).
The OCI Region has a VCN and a single Availability Domain. There is one
public subnet and 3 private subnets. The following are located in the secondary data
center:
- Subnet 1 (public web tier): Load balancer (100.100.100.10), WEBHOST1,
and WEBHOST2. WEBHOST1 and WEBHOST2 are running on an OCI VM.
- Subnet 2 (private mid-tier): APPHOST1 (Oracle WebLogic Server for OCI VM) is hydrwls1.midtiersubnet.hydrvcn.oraclevcn.com, 100.70.10.13.
APPHOST2 (Oracle WebLogic Server for OCI VM) is hydrwls2.midtiersubnet.hydrvcn.oraclevcn.com, 100.70.10.14. Both
hosts are running on an OCI VM.
- Subnet 3 (private FSS-tier): Oracle Cloud Infrastructure File
Storage: products1, products2, config runtime
- Subnet 4 (private db-tier): DB System (Oracle RAC) with DBHOST1
(hydrdb1.dbtiersubnet.hydrvcn.oraclevcn.com, 100.80.10.15) and DBHOST2
(hydrdb2.dbtiersubnet.hydrvcn.oraclevcn.com, 100.80.10.16) and PDB1
The following port connections link the primary and secondary data
centers:
- Traffic enters the VCN on Ports 443 (HTTPS) and 7001 (HTTP Console) on
Subnet 1.
- Content flows from Subnet 1 to Subnet 2 using ports 7001 (HTTP Admin),
8001 (WLS Cluster 1), and 9001 (WLS Cluster 2).
- A two-way connection uses NFS to link Subnet 2 with Subnet 3.
- Content flows from Subnet 2 to Subnet 3 using ports 1521 (SQL*NET) and
6200 (ONS) to connect to the db-tier.
