Oracle Cloud Infrastructure Documentation

Delegated Subnet Usage and Service Limits

Learn about delegated subnet limits for Oracle Database@Azure.

Oracle Database@Azure infrastructure resources are connected to your Azure virtual network using a virtual NIC from your delegated subnets (delegated to Oracle.Database/networkAttachement). By default, Oracle Database@Azure can use up to 5 delegated subnets. If you need more delegated subnet capacity, you can request a service limit increase.

Networking Considerations for Delegated Subnets

Note the following network considerations:

  • Multiple VM clusters are allowed in one delegated subnet.
  • Two or more clusters from different Exadata infrastructure resources are allowed in one delegated subnet.
  • Two Exadata infrastructure resources (for example, a primary located in availability zone 1, and a secondary located in availability zone 2) aren't allowed in one delegated subnet because this configuration would cause a sub-optimal network path.

Viewing and Increasing Service Limits for Delegated Subnets

For information on viewing and increasing service limits in the OCI Console, see the following topics:

When submitting a service limit increase, note the following:

  • The service name is Multicloud.
  • The resource name is Delegated Subnet Multicloud Links.
  • The OCI service limit name for Oracle Database@Azure delegated subnets is azure-delegated-subnet-count.
  • The limit is applied at the regional level.

More Information on Network Topologies and Constraints

See Network planning for Oracle Database@Azure in the Azure documentation for information about network topologies and constraints for Oracle Database@Azure.