Advertisements I am getting ready to upgrade my Roamio pro from it's original 3tb drive to 6tb wd red drive. Looking for some advice from people that have done this. I have Mfstools 3.3 installed in parallels on my Mac and it seems to work fine I also have a standalone dock. The drive is about 40% full would it be faster to use the dock to clone the drive and then do the mfsadd and mfsaddflx using MFstools or to do the entire process using Mfstools? The drives will be connected using usb 3.0.