New development: 3.5 inch hard disk 20TB will switch to glass disc production capacity hard disk

Date: 2017-09-07

 In recent years, the development trend of traditional hard disk in the disk capacity density gradual, when such as Seagate and western digital hard drive brand, we have more large capacity hard disk storage capacity of a single disc density is not increased significantly.When two big hard disk brands started to develop TB capacity products at the same time, the glass discs will become the large capacity of 3.5 -inch hard disk of the important components.

 Glass disc drive now is mainly used in traditional laptop using 2.5 inch hard drive products, compared with traditional aluminum discs, glass discs with light, thin, low noise and low thermal features, in addition, because the smooth characteristic of glass, also make glass disc drive at work than aluminum substrate discs save some energy consumption.

 According to the nikkei report, HOYA corporation from Japan recently published a new generation of glass disc type work, two new generation glass disc thickness is only 0.5 mm and 0.5 mm, and existing products more than 40% less than 0.635 mm size, that is to say the same space of hard disk, will be able to load more discs, provide higher capacity.

 Glass discs also can be used for HAMR (hot auxiliary Magnetic record writing Heat - Assisted Magnetic Recording) technology of hard disk.Seagate is planning to launch in 2018 the HAMR technology products, and expects to have 2020 20 terabytes of large capacity hard disk.

 SSD, on the other hand, with the development of the NAND, 3.5 -inch hard disk will also help to glass disc become mainstream.The reason is that when the NAND technology development is more and more advanced, the hard disk vendors, high prices NAND, let them not intend to launch to overtake NAND technology products, relatively cheap glass disc products against can make hard disk vendors have more profit space, for procurement staff, also can control the budget.

 In the long run, though the glass disc drive or need higher cost than traditional aluminum disc drive, but compared with SSD or NAND, with large capacity storage requirements of users, or more acceptable option.Thus, although SSD and NAND is market wave, but it is conceivable that new glass disc technology will become the main large capacity storage with the hard disk.

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