Backup Reconfiguration from one library to another.

Hi All,

Right now we have one TSM server 6.2 with two library and name is TSM3200_U3 and TSM3200_U5.

one of the my server "FILESRV" all backup configured on TSM3200_U3 and i want to move to TSM3200_U5.

How can i reconfigure please provide me the best solution and procedure.