Hi, I’m not sure this is the correct place for this post but here goes. I’m going to purchasing a 2017 MacBook Pro either 13 inch or 15inch. I currently have a MacBook Air 2013 with 256gig drive. Currently, I have about 160 gigabytes free. I use Time Machine to back up. I have almost a terabyte photos and business information stored in a separate hard drive. I back that up monthly to a second separate hard drive. Here is the meat of the question. When, I move to the new MacBook Pro I will likely increase the hard drive to 512 gigabytes. It will clearly still not be large enough for all the data I need. Would this be a good time to look into a small Raid array? Would it be better to stay with my current system of 2 different external hard drives? If a Raid array could you point me in a direction? Thanks.