Reporting back after a week in production. It’s running ok, my workload (large video files on/off the server) can’t saturate the drives or a 100Gbps link. With 4 machines at 10Gbps all reading/copying separate video files from the server at once, we’re in the 20-25Gbps range which I’m sure is more about the workstations than the server.
Performance is better than R730XD with HDDs especially under simultaneous load but hard to say if the performance improvement is worth the extra money for SSDs in our case. I’m sure if you had more load and faster workstations, the SSDs would really start to shine.