I have a base model mac mini with the 4GB memory and 500GB HD. I also have a 2015 13" MBPr that's the base model with 8GB memory and 128GB HD. I'll go ahead and say it now just so people know. As a day-to-day user of internet, video watching, MS word/excel and some PDF work I literally cannot tell the difference in speed between the two. I don't do anything intensive on the mini but was shocked at how well it runs. The mini is connected to my TV and I use it for media/internet. I have sling/netflix and the HDhomerun tuner card for my local TV which all works great. I just attached a 4TB external storage drive to the mini. I've had the drive for about two years and it is simply a drive in an enclosure. The Mac Mini is always on and connected wirelessly to my network. What I'd like to do is make the 4TB drive accessible to anyone that is connected to the network. I'd like to have it setup on my macbook so that it just looks like another folder I can access. We have dropbox at work which I've realized I love but A)they are canceling it and B)it still keeps copies of everything on my laptop which with the smaller drive can cause issues. I'd also like to have my laptop make backups of itself to the network drive if possible. I'm completely willing to buy whatever software I need to make this happen. Can someone help me out on what I should do?