NAS for video editors

[Adam Kendzior]

Hello! I need some advice.

I'm working as a video editor and my company is going to move out it's postproduction process to our own building(now we are renting workstation and storege space from the bigest TV station in the country). We are at the point that we have to gather some info about setting up infrastruture for the postproduction. We are planing to set up 4-6 workstations connected to a 60 TB(some kind of raid) usable space NAS. The big problem is that all of these workstations will work off this server at the same time. What kind of connection should we go for in these circumstances(fiber channel/10gbe)? What server? Sata or sas drives? How to organise it?

Ideas for the servers: https://www.synology.com/pl-pl/products/RS18017xs+ 
https://www.synology.com/pl-pl/products/RS3617xs+

All of the 6 editors rarely work on better quality material than 1080p. But we expect to be working with 4K in the future. Projects that we work on are kind of big. The raw video material weights around 6TB per project.

If you know of any LTT video about their server please link it here too.