I have an Alienware 13r2. My original set up consists of one 512gb ssd. I want to buy another 128gb ssd to use as a boot drive. The ssd I already have in my computer is used for my OS, apps and storage. I want to set up my computer so that the 128gb ssd will have my OS and apps and the 512gb ssd will be used for storage. How would I go about doing this?