Building Disaster Recovery Serviceguard Solutions Using Metrocluster with EMC SRDF

8. Mount the clustered file system on the site CFS sub-cluster.
# cfsmount /cfs/sfo_crs
9. Create the Clusterware OCR directory in the clustered file system.
# mkdir /cfs/sfo_crs/OCR
# chmod 755 /sfo_cfs/crs/OCR
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, you can install Oracle Clusterware.
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.
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. Log in 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. On the Specify Cluster Configuration screen, do the following:
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 Site A 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
108 Configuring Oracle RAC in SADTA