Perfomance center Moving from 9.0 to 9.51

Hi all

we have two envirnoments one is th PC.9.0 which we have been using for the last two years, and all the users,projects,etc infomration is there,and the other enivrnoment is new built that is PC 9.51, and we have two different database,Going forward we want to close all the activities in PC 9.0 and use only 9.51.PC 9.51 envirnoment is completely built, and my question is what is the procedure to move the fileserver?Do i need to move the DB also, the one with 9.51 is new installtion.

Appreciate you answers