Yeah, I went a little more overkill. I got a rack for free, and I have a Dell CS24 (that’s probably due to upgrade just for power savings at this point) that connects to a Rackable 3016. This runs unRAID, so I end up with the same thing roughly you have - JBOD with parity that I can bring any disk to, and 16 bays to fill before I have to start cycling drives out. So I check disk prices, when something tickles my fancy, I buy a new disk and shove it in there and it just keeps growing. If I had to do it today, I’d probably do it a bit differently just because the drive density, but it’s been going strong for 7-8 years now.