The ins and outs of planning and building your own home NAS

Recently I began outgrowing my home file server. It’s an older Mac Mini with 1TB of storage space, and though it has worked well enough for several years (and through more than one OS X Server review), it’s not a great choice for someone who primarily uses it as a file server. It’s not as expandable as I’d like it to be, its Fusion Drive setup offers no redundancy, and as a general-purpose computer it is rendered unnecessary by the 27-inch 2012 iMac on my desk that’s still happily humming away.