This section illustrates using the DB2® Control Center to test the database connection.
Invoke the DB2 Control Center,
shown in Figure 1. 
) to the left of the z/OS® system
that is running the DB2 on z/OS subsystem
that owns your Tivoli Data Warehouse repository;
then expand its list of databases. The list should include the database
you're using.
Figure 1. DB2 Control
Center
Select the plus sign () to the left of the z/OS® system
that is running the DB2 on z/OS subsystem
that owns your Tivoli Data Warehouse repository;
then expand its list of databases. The list should include the database
you're using.To again check your database connection, right-click your database
name, and select Connect from the pop-up menu,
as shown in Figure 2.
Figure 2. DB2 Control
Center right-click action menu
The Connect to the database window, shown
in Figure 3, opens.
Figure 3. Connect to named database window
Enter the user ID and password for the remote DB2 on z/OS database,
and press the OK button.