Network Administration - Oracle Exadata Recipes: A Problem-Solution Approach - page 304

How It Works
Grid Infrastructure network resources on Exadata are no different from those on non-Exadata 11gR2 Grid
Infrastructure environments. Your Grid Infrastructure network is defined with the ora.net1.network Oracle Cluster
resource and provides the network used for each client access network on your compute nodes.
The VIP addresses and SCAN addresses are added to DNS and used during the Grid Infrastructure installation to
enable network connectivity on the NET1-2 Exadata client access network.
On Exadata, like all Oracle 11gR2 installations, there is a single Grid Infrastructure installation per compute
node. As such, there is a single set of network configurations per node. The virtual IPs, SCAN network, SCAN
listener, and database listeners all share a common network framework and utilize and enable IP addresses on the
bondeth0 interface.

10-6. Configuring the Storage Server Ethernet Network
Problem
You wish to validate and configure the network on your Exadata storage cells.

Solution
In this recipe, we will show you how to identify the Exadata storage cell Ethernet network configuration, discuss
Oracle's use of the cell.conf configuration file and how it's used with the ipconf utility, and provide some
introductory guidance on how to modify your storage cell Ethernet networking.

■ recipe 10-7 discusses the steps required to modify your storage cell ethernet network in detail. please refer
to this recipe for a comprehensive discussion on the topic.

Note

To display the Ethernet network configuration on your storage cells, log in to one of your storage cells and run the
following ifconfig command:

[root@cm01cel02 ~]# ifconfig eth0
eth0 Link encap:Ethernet HWaddr 00:21:28:B2:83:74
inet addr:172.16.1.13 Bcast:172.16.1.255 Mask:255.255.255.0
inet6 addr: fe80::221:28ff:feb2:8374/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2193649 errors:0 dropped:0 overruns:0 frame:0
TX packets:2904578 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:307325546 (293.0 MiB) TX bytes:1153819741 (1.0 GiB)
Memory:ddb60000-ddb80000
[root@cm01cel02 ~]#

The eth0 interface is connected to the internal Cisco Catalyst switch. Exadata's storage cells also have three
additional interfaces, eth1 , eth2 , and eth3 , all of which are unconfigured and not connected to the Cisco switch or
data center network.