Seagate plans to dramatically increase the capacity of hard drives. Namely, the plan assumes the use of HAMR technology (Heat-assisted magnetic recording), which would increase the density of hard disk write.
Thanks to this method, it is possible to achieve a much higher registration density in relation to the current and dominant PMR (perpendicular magnetic record) technology. This is achieved due to the dramatic increase in heat in some segments of the disk. The end result should be to increase disk capacity or increase the input density.
This will increase the overall density and capacity of the disks. Heat is used to target certain areas of the disk, which increases the density of registration in a specific area. This increases the logging density in the main disk sectors, and the effect is similar to the periphery, even though performance is higher when targeting the sectors in the center of the hard drives.
Competition is not asleep, so Western Digital plans to do something similar, using the MAMR method (Microwave-assisted magnetic recording), which in effect will bring a similar effect when increasing the density of the disk on a given disk.
Seagate has announced that it expects to deliver the first drives based on HAMR technology in 2020. Initially announced is a capacity of 20 TB, which does not sound appealing, considering that 12 TB drives are daily, and Western Digital has recently announced a 15 TB hard drive model! But after this, this method should have hard drives with a capacity of up to 36 TB to 2022, while in 2023 and 48 TB can become a standard.
Finally, if everything goes smoothly, in 2025 we should see the first hard drives with a capacity of 100 TB! Ambitious plans, no doubt – we will see if they will come true. Seagate does not offer any price discs. Of course, there is always the possibility that hard drives will replace flash memory, even though they have been written so long to become seriously skeptical …
Source: PC Press