Disabling a database connection in Cognos 8

Get on to the ‘Content Administration’ in the ‘Launch’ drop down. Select the ‘Configuration’, this by default one will be in the database section. Click on the database connection, it will take you to the 2nd level of databases, where we can have n number of database connections.

Now click the ‘set properties’ button in the properties of the database you want to disable. On the ‘set properties’ click the ‘general’ and you will find a ‘check box’ for disabling the database. Just check the ‘Check Box’ and you have done it.
The image shown below should give you a better idea of how he database connection should look like when it is disabled.(One with ‘Hour Glass’ is disabled)