DB2 Version 9.7 for Linux, UNIX, and Windows

Instance owner

The instance owner user ID is used to start and stop the DB2® Text Search instance services on the DB2 server. Note that the DB2 instance and the DB2 Text Search services must be processes of the same user ID.

In Version 9.7, the instance owner must hold DBADM with DATAACCESS authority.

In addition to performing its primary task of controlling the instance services, the DB2 instance owner user ID acts as a central point of control for all database changes triggered by DB2 Text Search. Another primary task is cleaning up any unused text search indexes.

The instance owner is determined differently on UNIX and Windows operating systems:

On UNIX operating systems, the instance owner user is the name and user ID of the instance specified for the db2icrt command.
On Windows operating systems, the instance owner is the user ID running the DB2 instance service.