10.Create the Clusterware VOTE directory in the clustered file system. mkdir /cfs/sfo_crs/VOTE

chmod 755 /cfs/sfo_crs/VOTE

11.Set oracle as the owner for the Clusterware directories. chown –R oracle:oinstall /cfs/sfo_crs

After setting owners for the OCR and Voting directories, Oracle Clusterware can be installed.

Installing and Configuring Oracle Clusterware

This section describes the procedure to install and configure Oracle Clusterware. Use the Oracle Universal Installer to install Oracle Clusterware. For information on installing Oracle Clusterware using the Oracle Universal Installer, see the Oracle Real Application Clusters Installation and Configuration Guide available at the Oracle documentation site. When selecting the nodes for the Clusterware sub-cluster on a site, select only the nodes configured in this site in the Serviceguard cluster.

The following procedure describes how to install Oracle Clusterware with the Universal Installer in the sample environment.

1.Ensure that the appropriate host equivalence for the oracle user is configured.

When installing Oracle Clusterware, the host equivalence for oracle user must be configured only among the nodes in the same site.

2.Login with the Oracle credentials on a node in the site.

3.Copy the Oracle Clusterware installation software to this node.

4.Run the following command to start the Oracle Universal Installer:

<Oracle Clusterware Installation bits directory>\ /clusterware/runInstaller

This command starts the Oracle Universal Installer graphical user interface. Ensure that the DISPLAY environment variable is set appropriately.

5.Provide appropriate values at each screen till you reach the Specify Cluster Configuration screen.

6.At the Specify Cluster Configuration screen, complete the following steps:

a.Select only nodes that belong to the current site.

b.Specify the site-specific Clusterware name as the Cluster Name.

In this example, for the SFO Clusterware sub-cluster, select only the San Francisco site nodes SFO_1 and SFO_2. Do not include any other nodes. Specify the Clusterware sub-cluster name as sfo_crs.

7.In the Specify Oracle Cluster Registry (OCR) Location screen, select External Redundancy and specify the CFS file system directory if you have an independent backup mechanism for the OCR.

To use the internal redundancy feature of Oracle, select Normal Redundancy and specify additional locations.

In this example, for the SFO Clusterware sub-cluster, the location is specified as:

/cfs/sfo_crs/OCR/ocr

8.In the Specify Voting Disk Location screen, select External Redundancy and specify the CFS file system directory if you have an independent backup mechanism for the Voting Disk.

To use the internal redundancy feature of Oracle, select Normal Redundancy and specify additional locations.

In this example, for the SFO Clusterware sub-cluster, the location is specified as:

Configuring Oracle RAC Database in a Site Aware Disaster Tolerant Architecture 371