The Data Domain appliance connects to the Oracle database server within the MX7000 infrastructure chassis of this reference architecture via four front-end 10 GbE interfaces spread across two NICs installed in the DD9300 system. These four front-end 10 GbE interfaces within the DD9300 connect to the same spine switches to which the MX9116n network IOMs within the MX7000 chassis connect.
Within the DD9300, we created a new network interface group and added these four front-end interfaces to this group as shown in the following figure. So that the Oracle database server could communicate with the backup appliance, we configured these DD9300 front-end interfaces within the same IP network address range as the Oracle database public network IP addresses.
Figure 17. DD9300: IP network setup using interface groups
To register and connect the database server as a client with the Data Domain system, we selected the static IP address assigned to one of the interfaces on the Data Domain. By internally enabling load balance and failover capability among the network interfaces configured within a group, the interface group configuration provided a robust network bandwidth and a highly available backup network between the database servers and the Data Domain system.