In summary:
Database Server Name = DDF Location Name
Catalog Qualifier = The SQL Catalog Qualifier is the name of the DB2 system catalog in which packages are bound. SYSIBM or SYSIBM.<AUTHID> - SYSIBM will return all tables in DB2; SYSIBM.<AUTHID> will return tables created by AUTHID. If you enter a value in the SQL Catalog Qualifier field, StarSQL uses that value instead of SYSIBM. If you leave the SQL Catalog Qualifier field blank, StarSQL expects to find system catalogs under SYSIBM.
Package Collection = When packages are bound on DB2 MVS, they are recorded in COLLID in the SYSPACKAGE table. Obtain a valid collection name from your database administrator to use for StarSQL to create and bind its packages. If the package doesn't exist, the driver will try to bind it.