I have DIY All in One server made of desktop components. 250GB SSD for OS and container volumes, 500GB SSD for nextcloud and 12TB HDD (toshiba refurbished from Amazon) for media. At some point Ill make a raid, but for now sticking with the cheapest option with no issues (or just lucky). I backup nextcloud and docker volumes to HDD and to backblaze daily, but I dont need backup or redundancy for media (read: I dont see myself spending a lot of money for files that can be redownloaded anytime)