The sections in this help topic provide procedures for configuring clusters, cluster databases, and discovering instances. Before proceeding, note that you must discover or manually add a cluster target before you can add a cluster database target.
To add a cluster target that was installed but not discovered as a target automatically during installation, perform the following steps:
Click All Targets from the Targets page.
Select Cluster from the Add menu and click Go. The Add Target: Cluster page appears.
Optional: Specify the cluster name and provide the Clusterware home path if it is installed on the cluster.
To add hosts to the cluster, use the arrow buttons to move items from Available Hosts to Selected Hosts. The hosts you select must not already belong to a cluster.
Click Add to save the cluster target to the targets.xml
file on every selected host.
Click Help on any of the pages referenced in these steps for more information.
After you have added the cluster target, you can add a cluster database target either from the Databases page or from the All Targets page.
To add a cluster database target, perform the following steps:
In Enterprise Manager Grid Control, select one of the following entry locations:
From the Databases page, click Add. The Add Database Instance Target: Specify Host page appears.
From the All Targets page, select Database Instance from the Add drop-down menu, then click Go. The Add Database Instance Target: Specify Host page appears.
Specify any host member of the cluster target where the cluster
databases reside, then click Continue. The Add Database:
Specify Source page appears.
After target discovery completes, the newly discovered Oracle RAC databases appear in the Targets Discovered on Cluster page. If the databases do not appear, see the Troubleshooting section below.
If the desired targets do not appear in the Cluster Databases table, or if the discovered targets are not configured appropriately, click Manually Add. The Properties page of the Configure Cluster Database wizard appears.
Provide the required values for the Properties table.
You must specify at least one instance in the Instances table. If no instances appear in the table, click Add. The Properties: Add Instance page appears. Provide the required values, then click OK. The Properties page of the Configure Cluster Database wizard reappears.
Click Next. For versions 10.1 and above, Enterprise Manager bypasses the Install Packages, Credentials, and Parameters steps, and goes directly to the Review page.
Click Help on any of the pages referenced in these steps for more information.
If you need to configure additional instances, follow these steps:
In Enterprise Manager, click Databases in the Targets page, and navigate to the desired Cluster Database Home page.
Click Monitoring Configuration in the Related Links section. The Properties page of the Configure Cluster Database wizard appears.
Provide the required information in the Properties table at the top of the page.
Examine the Instances table. One or more additional instances may exist, but may not appear in the Instances table. If this is the case, click Add to discover the instance in the cluster database. The Properties: Add Instance page appears.
Provide the required information, then click OK. The wizard Properties page reappears, and displays the added instance view.
Click Check Connection to ensure that the connection is working.
Click Help on any of the pages referenced in these steps for more information.
If you encounter configuration issues, check the following required conditions to ensure that automatic discovery is able to function correctly:
The host user running the agent is able to run the SRVCTL utility in the
Oracle home and retrieve the database configuration.
The host user running the agent is able to connect to the database
through SQLPLUS using OS authentication.
The Oratab (Unix) or Registry (Windows) contains information about the database.
If automatic discovery still does not resolve your configuration issues after you have ensured the conditions listed above, you can manually configure cluster databases.
About Real Application Clusters
Viewing All Targets of a Cluster
Enterprise Manager Information Roadmap
Copyright © 1996, 2011, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its affiliates.
Other names may be trademarks of their respective owners.