You can set up the Oracle database to be managed by one of the following clusterwares:
Veritas Cluster Server
When the database is configured under VCS:
You can choose to configure the service group in a way that insulates all the databases from failure in any of the databases in the group.
VCS manages the start and stop sequence of the applications and the database.
See Sample service group configurations with the VCS Oracle agent.
Oracle Clusterware/Grid Infrastructure
See Sample service group configurations without the VCS Oracle agent.