I have an external G Raid HDD and it's a 4TB, so 2 4TB drives inside. I was wondering if I take out one of the 4TB drives can I replace it with say an 8TB drive and once the remaining 4TB clones itself onto the 8TB could I remove said other 4TB and put in an 8TB thus turning my 4TB G Raid into an 8TB G Raid?