The migration of data to an OES 11 server running DSfW is similar to any other data migration to OES 11:
You should use the OES 11 migration tools.
When the source and destination servers are in the same eDirectory tree, only the data and trustee rights are migrated.
When the source and destination servers are in different eDirectory trees, the data and associated users are migrated.
For information on how to use the OES 11 migration tools for migrating data, see the OES 11 SP1: Migration Tool Administration Guide.