By default, in a HA environment, all the databases run on the Primary active server in a High Availability (HA) pair. None of the databases are running on the secondary. You can configure databases to run on the databases if needed. To configure:
1 - Log on to Web Admin and select the High Availability link on the left.
2 - for the HA link you want to manage, click the manage button.
3 - Expand the Databases object.
4 - Click the manage button to create a new database configuration set.
5 - Give the configuration set a name and enter the database name in the next box and click Add.
6 -Click Save to Save the new config set
7 - Click Save Changes to save changes and the database will start running on the secondary server
