Kelvarr

I was gifted an old SuperMicro 846 24-bay server with a TQ backplane and some old Opterons. I plan on swapping out the motherboard to something slightly newer (but not a ton), some socket 2011 v2's. I also took advantage of (but have not yet implemented) the Black Friday sale for the Lifetime Pro License of Unraid. In an effort to start populating this beast of a case, I plan on buying some newer, larger hard drives (8TB & up). I have a plethora of 2TB drives (almost enough to fill this case), but that's a lot of electricity for relatively little storage space, considering I can get all of those down into as little as a single drive (should I spend the money). That said, the sweet spot seems to be about 12TB for me right now, and I have two options: SAS 12Gb/s and SATA. I know that SATA speeds are probably more than enough, but I can get SAS for the same price. Does one have benefits over the other? The primary purpose is going to be a storage array for Jellyfin, but will also likely house some central storage for other VM's (yet t be implemented). Also my understanding: I cannot mix SAS and SATA in the same array. I would have to have different arrays for each (which I also assume means different parity drives for each array). From what I can tell, these are some pros and cons, and I'm positive this list is not all-inclusive. Any advice would be appreciated: SATA Pros: Can be used in any system physically Native support for spin-down in Unraid (not sure about this one) Slightly lower power consumption Cons: Slower than SAS Problematic with SAS Expanders SAS Pros: Faster More compatible with SAS Expander (should I go that route) Lower read error rate/more durable Cons: Need a HBA to read in any system Potentially problematic spin-down (?) Slightly higher energy consumption