You can transfer Windchill data to another server by rehosting Windchill. Rehosting can be used to move or clone a Windchill system from one machine to another. Take a look at the Windchill Rehost Utility guide. This guide gives information on the rehosting process as well as instructions for using the rehost utility:
http://support.ptc.com/WCMS/files/162020/en/WCRehostUtil.pdf