Showa Denko develops HAMR dishes to achieve 80 TB HDD

Showa Denko develops HAMR dishes to achieve 80 TB HDD

As we have seen in other articles, the two main companies in the world have placed their strong bets on different technologies that aim to achieve the same goal. HAMR vs MAMR vs ePMR It is the news in which we are immersed since the end of last year and the first HDD have reached the business market with great criticism.

But this is not enough due to the high volume of data that large companies handle, so they require higher capacity units to face a lower cost in energy and space. Showa Denko has found the solution and presents its new HAMR dishes.

Up to 80 TB with higher performance and lower consumption thanks to HAMR

The dishes are the fundamental unit of any modern HDD. The recording technology they implement will have an impact on two primary factors and a third party in discord, but just as important. These factors are density per inch or mm2, speed in MB / s and durability.

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Based on technology HAMR Next-generation for HDD, Showa Denko (SDK) has presented its new plates with heat-assisted magnetic recording, which use a very thin and magnetic film with an extremely small glass bead size, which maximizes the area and its density

The objective according to the company is to offer HDD of up to 80 TB in just a few years thanks to these new plates, which are made of aluminum with a layer of Fe-Pt alloy. This allows that when producing the discs the company could implement a new form of control as far as the temperature of the means of production is concerned.

More density means greater reading and writing difficulty for the heads

The problem with HDD is that the miniaturization of the areas available on each plate implies a giant leap in the reading and writing heads. Writing in less space and with more precision implies that the so-called effect of magnetic interference between tracks becomes more acute and that the heads are less accurate when reading the data.

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In addition, they have to do it at extreme temperatures during recording. SDK says that their dishes overcome all these challenges and contrary to what one might think, the density they will achieve will be more than 5 times the current one, achieving almost 6 TB per square inch.

This will result in some HDD that at the same dishes as current hard drives will achieve capacities of 80 TB on average. This means that in a few years we will multiply at least four times the capacity of the most advanced HDDs like the ones Seagate presented at the end of 2019 with 20 TB and that will arrive, in theory, later this year.

In terms of performance, the company has not specified the MB / s rates that it expects with these new dishes, it simply ensures that it will be higher than what we currently have in the market.


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