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 5282
Failover of Oracle 9i RAC Instances to the Recovery
Site
Upon a disaster that disables the primary cluster, use the following
command to start up a ContinentalClusters recovery process:
# cmrecovercl
NOTE Make sure that the primary site is unavailable and all of the Oracel 9i
RAC instance packages are not running on the primary cluster before
triggering the recovery process.
The ContinentalClusters command, cmrecovercl prepares the
configured storage for Oracle 9i RAC instances shared access only when
the file /etc/cmconcl/ccrac/ccrac.config exists. If this file does not
exist, the configured storage will not be prepared for shared access before
recovering the Oracle 9i RAC instance packages. If ContinentalClusters
recovery group configuration includes Oracle 9i RAC instance packages,
these packages will not be able to start or operate successfully.
The recovery process will startup the configured Oracle 9i RAC instance
packages as well as other application packages configured in the
ContinentalClusters environment.
If the ContinentalClusters Oracle 9i RAC support is enabled
(/etc/cmconcl/ccrac/ccrac.config file exists), the following messages will be
prompted to the user when the command cmrecovercl is invoked and
confirmations are needed for the process to proceed:
“WARNING: This command will take over for the primary cluster
Primary_Cluster_Name by starting the recovery package on the recovery
cluster Recovery_Cluster_Name. You must follow your site disaster
recovery procedure to ensure that the primary packages on
Primary_Cluster_Name are not running and that recovery on
Recovery_Cluster_Name is necessary. Continuing with this command
while the applications are running on the primary cluster may result in
data corruption. Are you sure that the primary packages are not running
and will not come back, and are you certain that you want to start the
recovery packages [y/n]?
The configuration file /etc/cmconcl/ccrac/ccrac.config for Oracle 9i
RAC instances support exists. Data storage specified in the file will be
prepared for this recovery process. Is this what you intend to do [y/n]?