File servers are the bane of the network administrator as the overall size gets bigger and old files are never accessed over time.
Way, way back in the day my file sever of choice was Novell NetWare. It was a good network operating system that had a robust file system with commands that Windows still can’t match. But, as you know, NetWare has moved on from mainstream roles and Windows Servers are the most popular file server platform. A lot of administrators go the Linux route for file servers, and some even use storage processors or the cloud for housing general purpose data. With all of these options, there are positives and negatives to each.