I need to setup a backup solution for about 10 Mac users in our office. I have a 2014 Mac Mini with 4 GB RAM (not user upgradable....) and I am looking to buy a 12 TB external RAID thunderbolt 2 backup drive. I am new to OS X server and Time Machine in general. A few questions: 1) Will a 2015 Mac mini with 4 GB RAM be capable of doing Time Machine backups for about 10 users on the network? The backend are all gig port switches so local network bandwidth is not an issue. 2) Should my "enterprise" hardware aka mac mini die, can I swap in another mac mini with os x and reconnect it to the external RAID device and have Time Machine backups available? Or will the replacement mac mini not be able to access the Time Machine backups and will I have to wipe the external and start new backups. Bonus question: Does OS X server offer some type of printer management? Currently when we have a mac user needing to connect to a network printer, we have to manually install the drivers from a network share or web site.