Seagate's breakthrough HAMR HDDs on track to ship this year.
Seagate: We Are On Track with 20TB HAMR HDDs in December : Read more
Seagate: We Are On Track with 20TB HAMR HDDs in December : Read more
Long-term hard drive timelines rarely pan out. Look at this Tom's article about Seagate's HAMR from 2010. It sounds like this was just speculation on the writer's part based on the suggested density increase, but they wrote...We need to mark our calenders down for Dec 2026 and see if Seagate kept their promises
https://www.tomshardware.com/uk/news/hdd-ssd-harddrive,11048.htmlWith roughly 50x the potential of PMR, HAMR should lead the way beyond 100 TB drives and possibly into the region of 200 – 300 TB in the 2020 to 2025 time frame.
Is it just me or does the math on hard drives just not add up to anyone else? I have been thinking about this for several years and I must be missing something. Lets just assume for simplicity that each platter in a 3.5" HDD has a radius of 1", in reality it is problably close to 1.5", but I'm just going for simple numbers here. With a radius of 1" you have a surface area of a little over 3 sq in. per platter face, multiply that by 2 for a platter surface area of 6 square inches. Multiply that by the 9 platters, the typical amount in leading high capacity disks and you get 54 sq inches of surface area. Leading edge tech is getting about 1TB per sq inch now so that leaves me figuring 54 TB in a drive available today. Now I know you couldn't use every bit of area perfectly, but I find it strange drives are only approaching a third that capacity and I estimated on the low side. Where is my logic breaking down?
Leading edge tech is getting about 1TB per sq inch now so that leaves me figuring 54 TB in a drive available today. Now I know you couldn't use every bit of area perfectly, but I find it strange drives are only approaching a third that capacity and I estimated on the low side. Where is my logic breaking down?