The Administration Server responds to requests from the DB2 Administration Tools and the Client Configuration Assistant (CCA). The DB2 Administration Tools allow you to start, stop, and set database manager configuration parameters for servers. The Administration Server is used by the CCA to catalog databases for a client.
The Administration Server (DAS) must reside on every server that you want to administer and detect. By default the DAS is DB2AS, which is the default user ID that is created using the db2setup utility.