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 5284
Failback of Oracle 9i RAC Instances After a Failover
After failover, the configured XP disk array at the old recovery cluster
becomes the primary storage of the database. The Oracle 9i RAC
instances are running at the recovery cluster after a successful recovery.
To failback the Oracle 9i RAC instances to the primary cluster, follow the
procedures listed below:
The following steps describe the failback procedures specific to
ContinentalClusters only. To prepare the storage for a failback refer to
the steps described in Chapter 6, “Physical Data Replication for
ContinentalClusters Using Continuous Access XP” under section
“Failback Scenarios.”
In addition, follow the Oracle database failback procedures. Make sure
the data on the primary cluster is valid before failing back the Oracle 9i
RAC instances.
NOTE Make sure the AUTO_RUN flag for all the configured
ContinentalClusters packages is disabled before restarting the cluster.
1. Fix the problems that caused the primary site failure.
2. Stop the Oracle 9i RAC instance packages running on the recovery
cluster. On any node of the recovery cluster run the command:
#/opt/cmconcl/bin/ccrac_mgmt.ksh stop
3. Synchronize the data between the two participating clusters. Make
sure that the data integrity and data currency are at the expected
level at the primary site.
4. Verify that the primary cluster is up and running. On any node of the
primary cluster run the command:
# cmviewcl
5. Startup the Oracle 9i RAC instance packages on primary cluster. On
any node of the primary cluster run the command:
#/opt/cmconcl/bin/ccrac_mgmt.ksh start