You can set up a new database to be a "mirror"
of an existing database, meaning that all eligible objects created
in one are DCM replicated to the other.
You
can duplicate a DCM database in the following ways..
Copying a DCM database using pack and unpack
You can use the pack and unpack commands
to duplicate an existing DCM database. The database that is to be
packed must be initialized to use DCM.
Transferring all DCM members of a database
You can use a built-in transfer set named Entire
database to copy all eligible objects from one DCM database
to another. The destination database does not need to be new or empty.