I think that 15TB hard drive will last me a while, since I don't even have 5TB of data.,(reply>), @kifla Forza Motosport 7 is over 100GB.,(reply>), Got a 10TB Seagate Ironwolf Pro and it has an annoying initial fan spin sound that goes off every 4 to 10 seconds whenever S.M.A.R.T is triggered as the drove sleeps and wakes constantly, nothing to prevent it from sleeping, and turning s.m.a.r.t off or on is no longer an option in current gen mobos, all WD and Seagate models above 8TB has these noises, drove me nuts, so I brought two 6TB drives to replace it.,(reply>), I have a 120gb ssd with 70gb free,(reply>), Due to my design specs, I buy 2 HDDs for RAID1 array. As mine is the 3TB HGST, they are pretty pricey, but since I have critical documents and some other project things in addition to a 4TB backup, about 1.7TB is already filled. I will think about much larger capacities once that is at near full capacity, then prep them for wipe and reuse as parts for other computers.,(reply>), @Nate Dunn Yes, "like more protection" indeed because "REAL more protection" doesn't work that way.