Building Disaster Recovery Serviceguard Solutions Using Metrocluster with Continuous Access for P9000 and XP A.11.00

between the sites in the primary cluster. A Site Controller Package is created in the recovery cluster
to manage the RAC database configured in the recovery cluster.
A recovery group is configured in Continentalclusters with the Site Controller Package in the primary
cluster as a primary package and the Site Controller Package in the recovery cluster as a recovery
package. Figure 44 (page 129) illustrates a sample Oracle RAC configuration in the 3DC solution.
Figure 44 Sample Oracle RAC configuration with SADTA in 3DC
Figure 44 (page 129) illustrates a RAC database with 3DC replication in a Multi-Hop Bi-Link
configuration. You can also have the 3DC replication in Multi-Target Bi-Link or Tri-Link configuration.
Multiple RAC databases can be configured using a separate Site Controller Package infrastructure
for each RAC database. Each RAC database must have its own Site Controller Package, Site Safety
Latch, RAC MNP package stack, and replication disk groups in the 3DC solution.
NOTE: You can have other complex workloads or applications configured and running along
with the RAC database in the recovery cluster.
Configuring Oracle RAC in a 3DC Solution using SADTA
This section describes the procedures required to configure Oracle RAC in a 3DC solution using
SADTA. A sample RAC database with name hrdb is used in this section to elaborate on the
procedure to configure the RAC database in the 3DC solution.
Complete the following procedure to configure Oracle RAC in a 3DC solution using SADTA:
1. Configure the primary cluster.
A primary cluster in a 3DC environment is a Metrocluster with two sites configured.
2. Configure the recovery cluster.
A recovery cluster in a 3DC environment is a Serviceguard cluster configured with one site.
3. Configure RAID Manager in the primary and recovery cluster.
4. Create Device Group Pairs.
5. Configure Oracle RAC and the Site Controller Package in the primary cluster.
a. Set up the Oracle RAC database redundantly in the primary cluster.
b. Configure the Site Controller Package in the primary cluster.
c. Configure the Site Safety Latch Dependencies in the primary cluster.
6. Configure Oracle RAC and the Site Controller Package in the recovery cluster.
Deploying a Complex Workload in Three Data Center Solution using SADTA 129