Designing Disaster Tolerant High Availability Clusters, 10th Edition, March 2003 (B7660-90013)

Building a Continental Cluster
Support for Oracle 9i RAC Instances in a ContinentialClusters Environment
Chapter 5276
As shown in the above example, Oracle 9i RAC instances are configured
to run in ServiceGuard packages. The instance packages are running on
the primary cluster and will be recovered on the recovery cluster upon a
primary cluster failure. Figure 5-11 shows a recovery using an Oracle 9i
RAC configuration after failover.
The Oracle 9i RAC instances is only supported in the
ContinentalClusters environment using HP StorageWorks Continuous
Access XP (XP/CA) for data replication and SLVM for volume
management. This feature is targeted for the customers who use HP
StorageWorks XP disk arrays to store the Oracle database and use XP/
CA to replicate the data changes between two clusters. To enable this
feature, you should have HP MetroCluster with Continous Access XP
version A.04.20 installed on all of the nodes in the Continental cluster.
Figure 5-11 Sample Oracle 9i RAC Instances in a ContinentalClusters
Environment After Failover
NYnode1 NYnode2
LAnode1 LAnode2
Running Oracle 9i RAC
ServiceGuard Cluster
WAN
Highly Available
Network
Disk
Disk
Array
Array
RAC RAC
New York Secondary
XP/CA Data Replication Links
Instance1 Instance2
ServiceGuard Cluster
Los Angeles Primary