5.6 Reorganizing the LANSA Internal Database
LANSA stores a great deal of information about fields, files and processes. This information is kept in a set of approximately 80 IBM i database files that reside in the LANSA 'data' library. This is normally called DC@DTALIB, but may be different at your installation. These files begin with the prefix 'DC@F', 'DC@W'or 'DC@X' which identify them as 'internal' LANSA files.
Also see
5.6.1 Why Does it Have to Be Reorganized?
5.6.2 When Should It Be Reorganized?
5.6.3 Steps to Reorganize the Database