Use the following guidelines when you set up the repository on IBM DB2:
To optimize repository performance, set up the database with the tablespace on a single node. When the tablespace is on one node, PowerCenter Client and PowerCenter Integration Service access the repository faster than if the repository tables exist on different database nodes.
Specify the single-node tablespace name when you create, copy, or restore a repository. If you do not specify the tablespace name, DB2 uses the default tablespace.
Informatica does not support IBM DB2 table aliases for repository tables. Verify that table aliases have not been created for any tables in the database.