10.Edit the tnsnames.ora file on the nodes at the target disk site and modify the HOST = keywords to suit the target disk site environment.

In this example, you must edit the tnsnames.ora file on each node in this site.

11.Register the database with the CRS sub-cluster on remote site.

srvctl add database -d hrdb -o /opt/app/oracle/product/11.1.0/db_1/ srvctl add instance -d hrdb -i hrdb1 -n <site2_node1>

srvctl add instance -d hrdb -i hrdb2 -n <site2_node2>

After registering the database with the CRS sub-cluster on the remote site, you can run the srvctl status command to view the health of the database.

Configuring the Site Controller Package

The procedure to configure the Site Controller Package is identical to the procedure in configuring Oracle RAC in SADTA. For more information on configuring the Site Controller Package for Oracle RAC database with ASM in SADTA, see “Configuring the Site Controller Package for the Complex Workload” (page 355).

Configuring the Site Safety Latch Dependencies

After the Site Controller Package configuration is applied, the corresponding Site Safety Latch is also configured automatically in the cluster. This section describes the procedure to configure the Site Safety Latch dependencies.

Complete the following procedure to configure the Site Safety Latch dependencies:

1.Add the EMS resource details in ASM DG package configuration file.

RESOURCE_NAME /dts/mcsc/hrdb_sc

RESOURCE_POLLING_INTERVAL 120 RESOURCE_UP_VALUE != DOWN RESOURCE_START automatic

You must apply the modified ASM DG package configuration using the cmapplyconf command.

2.Verify the Site Safety Latch resource configuration at both sites. Run the following command to view the EMS resource details:

#cmviewcl -v –p <ASM_DG_pkg_name>

3.Configure the Site Controller Package with the RAC MNP stack packages of both sites. site site1

critical_package <site1_RAC_DB_pkg_name> managed_package <site1_ASM_DG_pkg_name> site site2

critical_package <site2_RAC_DB_pkg_name> managed_package <site2_ASM_DG_pkg_name>

NOTE: Do not add any comments after specifying the critical and managed packages.

4.Re-apply the Site Controller Package configuration.

#cmapplyconf -v -P <site_controller_configuration_file>

After applying the Site Controller Package configuration, run the cmviewcl command to view the packages that are configured.

390 Designing a Disaster Recovery Solution Using Site Aware Disaster Tolerant Architecture