WEBVTT

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if you're going to be in the market for a hard drive in the next couple years then you're going to experience Hammer

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Time and no I'm not talking about a hard drive that plays rap music and wears

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parachute pants today's video is about heat assisted magnetic recording or

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Hammer which will greatly increase Drive capacities you might already know that

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data on a hard drive is stored by tiny magnetic grains that sit on the dis

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platters a group of these grains can store one bit that's a zero or a one

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depending on which way it is turned when you write something onto your hard drive

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the drive's head will apply a magnetic field to turn the Grain in a certain way

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that's what stored data is but as hard drives have gotten more and more

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spacious over the years manufacturers have gotten into the problem where

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magnetic grains can only be made so small before they become unstable and

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start flipping randomly limiting the amount of data that you could fit onto

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one hard drive but as it turns out heating the disc can make the bits more

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stable by decre inreasing the platter's coercivity what this means in Practical

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terms is that the heat makes it easier for the drive head to turn the grain

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correctly so that data is recorded accurately Hammer drives do this by

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using a tiny laser smaller than a grain of salt on the Reed right head but

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because you can't focus a laser down to the size of a bit on the platter the

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laser instead is absorbed by something called a nearfield transducer or nft a

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technology that's only been around since the 1990s the nft can converts the laser

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light into something called surface plasmons which are basically small

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electrical currents that travel down the nft and heat a small area of the disc up

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to 400 to 500° C however the disc cools

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as soon as the right is complete so you won't have to worry about some sort of

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catastrophic Drive meltdown so this means another thing you probably won't

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have to worry about is running out of space after Hammer's introduction in

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2018 or 2019 it's projected to provide

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20 terabytes of storage on one drive starting at around 2020 and increased

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this capacity to about 30 to 40% year

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after year all the way up to 100 terabytes on a single drive when it's

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combined with bit patterned media which is a technology that allows a bit to be

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stored on just one single grain rather than a group of grains which will

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increase data density all right Luke that sounds like quite a bit of space

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for all my junk but won't that hit my wallet quite hard actually Hammer drives

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aren't projected to be more expensive than current drives when you take

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capacity into account as you wouldn't need as many platters to hold the amount

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of data that you would want which would reduce the cost since Hammer is a

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technology for spinning hard drives Hammer discs won't exactly be as fast as

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ssds but you could see a 10 to 15% performance increase simply due to the

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higher data density since the read WR head can access more data in one

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rotation of the disc so keep an eye out for Hammer drives the next couple years

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if you keep running out of space and although this episode was not sponsored

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we'd like to thank our friends over at Seagate for giving us some help with the

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information on this edition of Techquickie freshbooks is on a mission to

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quickie and entering Techquickie in the how did You Hear About Us section if you

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like the video like it if you dislike the video dislike it let me know in the comment section down below if there's

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ideas I'm leaving