You can use the Veritas Storage Foundation for DB2 Java GUI for setting up a database.
To access DB2 database wizards in the Java GUI
Click the DB2 Instances icon in the object tree. (You may need to expand the tree view to find the icon.)
Select one of the following methods to start the instance.
Select the appropriate wizard from the list presented.
See Creating a DB2 snapshot database.
See Unmounting a DB2 snapshot database.