Dang, just as I licked Pos

Dang, just as I licked Post, one last question, lol….

On my secondary hard drive, do I need it to be an internal drive or could I get by with an external? I’m assuming I could just dump all my footage from the camera on an external and then transfer it over to my internal to edit on it, but Adobe’s reccomendations leave my wondering if that will work smoothly. Any advice?