Tranfering NX Data from one Windchill Server to un other

I have transfer/migrate NX data from one Windchill Server to an other. Sorce and Target System are exactly on same Windchill Version. The Systems are slighty different IBA's, lifcycle states, Revision scheme. All data are located on in the same library. I would like to transfer the complete history, all iterations. No linkage to wtparts or other non nx data.

Did anyone do something similar. Any suggestion ore appriciated

Thank you very much

Klaus