Resolution:
1. Create ADB catalog tables such that the authorization id of the tables is the same as the logon id as specified in the repository.
2. DBA should create DB2 DATABASE AND TABLESPACES according to their shop-standard to support new tables (e.g publishing tables) created by ADB.
3. Use DataDirect DB2 wire protocol driver under "bind" tab to create DB2 packages on the very first time. Please see bundled DataDirect ODBC driver document for details.
4. To access OS390, the user must know the LOCATION name of the DB2 subsystem.
5. The default port# for DB2/OS390 is 446.