lurched666

I have been looking into purchasing a RAID for a long, long time to store my ridiculous DVD/BD/UHD collection for backup purposes. What always stops me is calculating my space needs and seeing the cost of drives to do this right. Then I have had DVDs with bitrot (nothing I can't rebuy or upgrade to BD/UHDBD) and I get back to thinking about finally doing this thing... Anyway. In looking into Unraid, if I understand this correctly, I could buy 1 current "max size available" 16 TB drive. I then set this is my parity drive. I can then add a 1-11 (depending on license) less expensive 10TB drives (or 12-14 depending on price at the time) and be protected from a single drive failure while retaining full 10 TB capacity on each. Is this right? As I understand it, by using the 16 TB as my parity drive I can put any size drive < 16TB into my array and it will be full capacity. If prices drop, as they inevitably do, I can then put a 20 TB parity drive in, drop the 16 TB parity drive out and into the array and enjoy the full 16 TB on this drive. Is this right? From a configuration perspective, what would an ideal CPU be? I would want to potentially stream MKV rips over my network without transcoding, so I assume a modest Core i5 or equivalent processor would be good enough? Then ensure I have a gibt network connection or better? What would RAM "requirements" look like to allow for this? 8 GB enough? 16? 4? Thanks in advance for any and all advice. If anything I said is stupid, please tell me so as I really want to understand as much as I can before cannon ball jumping into Unraid.