Multi data sources provide failover and load balancing for connection
requests between two or more data sources. Before you create a multi
data source, you should create the data sources that the multi data
source will manage, and deploy them to same targets that you want to
deploy the multi data source to. Note that the underlying databases must
have some kind of data synchronization or replication. WebLogic Server
does not handle that replication.
The main steps for
configuring JDBC multi data sources are: