Yeah no kidding, paying for unraid?

TrueNAS (formerly FreeNAS) keeps getting better, for free. It does most of the same tricks that the big boy appliances do, but with your commodity hardware, at no cost.

And it does all this exceedingly well. AND if you want… you can buy support. At your discretion.

Hard disks, WD/HGST.

I’ve had good luck with EMC and NetApp for enterprise solutions, Synology for SMB class NAS storage, and rely on TrueNAS/ZFS on supermicro hardware at home, which has been rock solid for years and years.