Getting Started Guide

16 Preparing Nodes for Oracle Installation

eth2:1 Link encap:Ethernet HWaddr

00:1E:C9:4B:71:24

inet addr:169.254.167.164

Bcast:169.254.255.255 Mask:255.255.0.0

UP BROADCAST RUNNING MULTICAST MTU:1500

Metric:1

For more information on Redundant Interconnect and

ora.cluster_interconnect.haip, see metalink note: 1210883.1 at

support.oracle.com.

IP Address and Name Resolution Requirements

The steps below show how to set up your cluster nodes for using Domain

Name System (DNS). For information on how to set up cluster nodes using

GNS, see the wiki article http://en.community.dell.com/dell-

groups/enterprise_solutions/w/oracle_solutions/1416.aspx.

For a Cluster Using DNS

To set up an Oracle 11g R2 RAC using Oracle DNS (without GNS):

Configure at least two interfaces on each node, one for the private IP

address and one for the public IP address.

Configure the SCAN NAME on the DNS for Round Robin resolution to

three addresses (recommended) or at least one address. The SCAN

addresses must be on the same subnet as virtual IP addresses and public IP

addresses.

NOTE: For high availability and scalability, it is recommended that you

configure the SCAN to use Round Robin resolution to three IP addresses.

The name for the SCAN cannot begin with a numeral. For installation to

succeed, the SCAN must resolve to at least one address.