Database Server Identification Parameters

Use the SERVERNUM and DBSERVERNAME parameters to provide unique identification for each instance of the database server.

Configuration
Parameter

Description

DBSERVERALIASES

Specifies an alternate name or names for an instance of the database server.

For information about using DBSERVERALIASES to create multiple listen endpoints to which clients can connect, see Listen and Poll Threads for the Client/Server Connection.

DBSERVERNAME

Specifies the unique name of an instance of the database server. Use the DBSERVERNAME for your INFORMIXSERVER environment variable and in the sqlhosts information. The maximum length of DBSERVERNAME is 128 characters.

On Extended Parallel Server, multiple coservers can exist within a single database server. The database server uniquely identifies each coserver by appending the coserver number to the DBSERVERNAME.

Use DBSERVERNAME with the coserver number for client connections. For more information about client connections, see Coserver Client Connections.

SERVERNUM

Specifies a unique integer for the database server instance. The database server uses SERVERNUM to determine the shared-memory segment addresses within each coserver.

Specify SERVERNUM only once for the entire instance of the database server (not for each coserver).