Owner's Manual

Adding and Removing Nodes

This section describes the steps to add a node to an existing cluster and the steps to

remove a node from a cluster.

NOTE: The new node must have the same hardware and operating system

configuration as the existing node(s).

To add a node to an existing cluster:

• Add the node to the network layer.

• Configure shared storage.

• Add the node to Oracle Clusterware, database, and the database instance

layers.

To remove a node from an existing cluster, reverse the process by removing the node

from the database instance, the database, and the Oracle Clusterware layers.

For more information about adding an additional node to an existing cluster,

see the

Oracle Real Application Clusters 11g Administration

document on the

Oracle website at

www.oracle.com

Adding a New Node to the Network Layer

To add a new node to the network layer:

Install the Enterprise Linux operating system on the new node. See the

Operating System and Hardware Installation, Linux Guide

for more

information.

Configure the public and private networks on the new node. See the

Storage and Networking Guide

Verify that each node can detect the storage LUNs or logical disks. See the

Storage and Networking Guide

Configuring Shared Storage on the New Node Using ASM

To extend an existing RAC database to your new nodes, configure storage for the

new nodes so that the storage is the same as on the existing nodes. If you are using

ASM, ensure that the new nodes can access the ASM disks with the same

permissions as the existing nodes. This section provides the appropriate procedure

for ASM.