Using High Availability Monitors (June 2003)
Monitoring Database Resources
Rules for Using the HA Database Monitor with ServiceGuard
Chapter 370
Sample File Settings
The following is an example of how you might set up an ServiceGuard
cluster, mycluster, with two nodes, nestle and whitman, to monitor the
availability of a database, db_1, that is defined on a volume group, VG01,
that can be accessed in exclusive mode by either nestle or whitman.
Figure 3-2 shows the sample cluster setup.
Figure 3-2 Two Node Cluster with HA Database Monitor Failover
This sample illustrates a single database failover situation. You can also
configure failover for multiple databases, for example:
• Configure two different packages where each has a dependency on
the status of two different databases
• Configure one package with multiple dependencies
In the above scenario, ServiceGuard handles the activation and
mounting of the Oracle database, as well as starting the database
instance for you.
Setting Up the ServiceGuard Package
This section provides an example, based on Figure 3-2, of setting the
parameters in the ServiceGuard package configuration file. The sample
lists the parameters for the HA Database Monitor, not all the