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

Building a Continental Cluster
Preparing the Clusters
Chapter 5206
5. Configure and test each primary package according to the
instructions in chapters 6 and 7 of Managing MC/ServiceGuard
manual. Use the cmapplyconf command to apply the package
configuration.
6. Be sure that AUTO_RUN (PKG_SWITCHING_ENABLED) is set to NO in the
package ASCII configuration file for any package that is in a
recovery group, and therefore might at some time be a candidate for
recovery. This is to ensure that the package will not be automatically
started if the primary site tries to come up again following a primary
site disaster.
If you change the setting of the PKG_SWITCHING_ENABLED parameter
to NO in the ASCII configuration file for an existing package, you
must re-apply the configuration using the cmapplyconf command.
NOTE When package switching is disabled, a package does not
automatically start at cluster startup time. Therefore, setting
AUTO_RUN (PKG_SWITCHING_ENABLED) to NO means that primary
packages in recovery groups must be started manually on the
primary cluster. They also must be manually enabled for local
switching, if that is desired, using the cmmodpkg -e <packagename>
command.
7. Test local failover of the packages. In our sample case, this would
mean enabling package switching for salespkg (cmmodpkg -e
salespkg) and then testing that salespkg fails over from LAnode1 to
LAnode2 .
8. If you are using logical data replication, configure and test the data
sender package if one is needed.