Oracle EXADATA X6-2 Installation And Configuration Manual page 90

Oracle Exadata Database Machine. It connects the servers, ILOM, and switches
connected to the Ethernet switch in the rack. There is one uplink from the Ethernet
switch in the rack to your management network, one uplink from the KVM switch in
the rack to your management network, and one uplink for each power distribution
unit (PDU).
Notes:
– Network connectivity to the PDUs is only required if the electric current is
monitored remotely.
– A properly secured configuration requires the management network to be
fully isolated from all other networks.
Each database server and Exadata Storage Server has two network interfaces for
management. One provides management access to the operating system through
the embedded NET0 Ethernet port on Oracle Exadata Database Machine Two-
Socket systems, or the NEM0/NET1 Ethernet port on Oracle Exadata Database
Machine Eight-Socket systems. The other network interface provides access to
the ILOM through the NET MGT Ethernet port. Oracle Exadata Database
Machines are delivered with the NET MGT and NET0 or NEM0/NET0 ports
connected to the Ethernet switch in the rack. The NET0 or NEM0/NET0 port on
the database servers should not be used for client or application network traffic.
Cabling or configuration changes to these interfaces on Exadata Storage Servers
is not permitted.
• Client access network: This required network connects the database servers to
your existing client network and is used for client access to the database servers.
Applications access the database through this network using Single Client Access
Name (SCAN) and Oracle RAC Virtual IP (VIP) addresses. Database servers
support channel bonding to provide higher bandwidth or availability for client
connections to the database. Oracle recommends channel bonding for the client
access network.
The following list describes the channel bonding configurations:
– Oracle Exadata Database Machine Two-Socket systems, use either:
* The embedded NET1 and NET2 ports
* The two 10 GbE ports or two 10/25GbE ports on Oracle Exadata
Database Machine X7-2
– Oracle Exadata Database Machine Eight-Socket systems, X4-8 or higher
* Use two ports, with each port on a different PCIe card
– Oracle Exadata Database Machine X3-8 Full Rack and Oracle Exadata
Database Machine X2-8 Full Rack
* Use ports from each Network Express Module (NEM)
For the Oracle Exadata Database Machine X3-8 Full Rack and Oracle
Exadata Database Machine X2-8 Full Rack database servers, using the
same ports on the Network Express Modules, such as NEM0/NET1 and
NEM0/NET2, works but does not provide for high availability.
Chapter 2
Overview of Network Requirements
2-2