Each Oracle Exadata Database Service on Dedicated Infrastructure instance consists of one or more virtual machine (VM) clusters. The infrastructure resides on Exadata database and storage server racks in an Oracle Cloud Infrastructure (OCI) region.
Note: For clarity, the diagram displays only one VM, one database server, and one storage server.
The client and backup networks provide access to your VM clusters on dedicated (single-tenant) database servers. These networks use dedicated virtual cloud network (VCN) hardware and connect to your VMs through bonded virtual network interface cards (VNICs).
Your VMs access your dedicated Exadata storage servers through a private, nonrouted interconnect network with SR-IOV mapped interfaces. Each physical Exadata database server and storage server has a highly available (HA) (active/standby) connection to a pair of redundant storage networking switches.
The storage networking switches are shared (multitenant).
The database and storage servers are interconnected through a layer 2 management network. There is no direct access from the management network to your client and backup networks. A subset of Oracle cloud automation functionality accesses your VMs through the management network by using a VNIC interface and a network address translation (NAT) address.
The Oracle-managed admin VCN connects to the management network through shared VCN hardware and management network switches.
The following interfaces connect the various networks to the VM:
- bondeth0 for the client network
- bondeth1 for the backup network
- eth0 for the admin network
- re0 for a storage/Real Application Clusters (RAC) interconnect (isolated through VLAN)
- re1 for a storage/RAC interconnect (isolated through VLAN)