Since 2006, I have used a ReadyNAS NV from Netgear (formerly Infrant). It's a 4-bay enclosure. For the past several years, I've only used one bay, to house a 2TB drive. I have media on there, as well as TM backups for my 2011 mini, and my wife's 2012 Air. I'm pretty sure 10.9.3 broke Time Machine backups to my NAS, and I have been considering for at least a year to go to a DAS. My media collection is not really growing, so even a single HDD enclosure would probably be OK, two discs at max. I'll probably stick a 3TB or 4TB drive in there and be good for another 5 years. My plan was to upgrade from 10.9.3 to OS X Server, and add this docking station. That would take care of my local media, and backing up my wife's Air. But what to do about backing up my machine? Should I get two of them? One for local storage, and the other for TM backups? How to best make a backup of my Time Machine image to keep off-site? In my current setup, I attached an external HDD to my NAS, hit a button, and it backs up everything. It is a bit of a pain, because it's manual, and slow as molasses via USB 2.0. Attached to my mini is the CalDigit Thunderbolt Station, so I have 3 USB 3.0 ports at my disposal, plus a couple of spare USB 2.0 ports on the mini. The FW800 is taken up by an external BD enclosure.