After nearly losing 3.6TB worth of data last night I'm looking to move from MHDDFS to a RAID 6 solution for my storage. Thankfully I got the drive that took a dump working in read only long enough to copy everything off it but it was quite a wake up call. Many years ago I was running RAID 5 in a previous system but that appear to have gone out of fashion now with larger arrays. So here I am, now in need of a RAID 6 storage solution that can run on Ubuntu 18.04 while still allow growth of the array one drive at a time as and when needed. The storage is mainly UHD rips that are streamed to Nvidia Shields around the house. The current MHDDFS array consisted of 2 x 10TB Ironwolfs and 5 x 4TB WD Blues, it was one of the WD's that died so they will all be retired. Instead I plan on getting another 4 x 10TB Ironwolfs. The end result is the same ~40TB of usable storage but way more robust in case of drive issues. I have been eyeing up the Highpoint RocketRaid 2840A which looks decent but there are hardly any reviews to be found. Is there a better option at the same price point when it comes to a RAID controller? I'm not looking for a pure software RAID option as that will require custom kernels.