OK, just ordered a DS212J and one 2tb hdd. I will be using it for file storage and streaming music and movies. I have only bought one hdd for now, as I already have and external hard drive which I plan to use for back up purposes. Am I correct that I can do this for now without any problems and add a second 2tb hdd at a later date to configure RAID when I reach capacity on my external drive? Seems to make sense to use the external one for now and save some money on the initial purchase. I'm new to this so excuse basic question.
Cheers


