I know this is an older topic but wanted to add since I had to move some stuff from and older box server to a new quickbox I used FXP via FTP transfer.
As I had to transfer quite a lot of files and folders.
You will need to enable FXP on vsftp by editing the vsftpd.conf to allow for this.
and then restaring vsftpd
You will have to do this on both servers.