Hi Guys, My Internal drive is almost full, and am going to buy a 1TB WD My book to use as my new Time Machine drive whilst using the old 500GB WD My Book as extra storage. My question is, if after a while the internal drive fails (which it has in the past) what is the correct procedure to restore from the TM backup once the new internal drive is in place? I ask this as the TM backup will be copying files from both the internal and external drives. Is it smart enough to ignore backing up to the external drive because the data is still there, or will the external backup need to be disconnected whilst I restore from TM. Or, is there something else that I've not thought of?? Thanks for your time!