Open System Services ODBC/MX Client Driver Manual for SQL/MX Release 3.2.1 (H06.26+, J06.15+)

For more information on connecting to a data source, see the SQL/MX Connectivity Service Manual.
Connection Mapping
MXCS maps the client data source name in an incoming connection request to the server data
source name (names are case sensitive). If the name matches but the server data source is not
started, the connection request is rejected. If the server data source name does not exist, the
Association Server routes the connection to the default data source. If the default data source is
not started, the connection request is rejected. For information on starting and stopping a data
source, see SQL/MX Connectivity Service Administrative Command Reference.
After a data source name is assigned, the Association Server uses any MXCS SQL server that is
previously used by the same userid. If no such server is found, the Association Server assigns the
first available server to the connection and reinitializes the user context to the one defined in the
configuration for the data source name on the server.
Connections 17