Perpendicular storage gives 2.5" HDD better capacity...
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Perpendicular storage gives 2.5" HDD better capacity...
I thought this would be some nice news for many here. I know I'm stoked about it! The current capacity of 2.5" drives is what keeps many people from changing over, but this should help out a bunch (no word yet on pricing, or how these drives will compare to current parallel storage 3.5" drives, in terms of GB/$). Although it's true, there's nothing stopping them from making 3.5" drives on this same technology...
-Ed
-Ed
they are developing this for 3.5 inch, this has been known for a few months now, it's all explained in this wonderfully bizarre hitachi flash animation, enjoy (:
http://hitachigst.com/hdd/research/reco ... ation.html
http://hitachigst.com/hdd/research/reco ... ation.html
Actually, storage capacity is only part of what's keeping me from switching to 2.5" drives. It's also price per GB (currently about 4x that of 3.5") and (to a lesser extent) speed.
I'm not sure what makes notebook drives more expensive currently - perhaps because they're targeted towards notebooks. Just read somewhere that notebooks outsold desktops for the first time, so hopefully price of 2.5" drives will drop as volume increases. The 5.25" HDD was replaced by 3.5" devices, so it's not inconceivable that 3.5" will be replaced by 2.5".
Off topic : reportedly heard on a home shopping channel in another country - "This laptop is really light, but of course the hard disk is currently mostly empty."
Edit : that flash animation is really funny I read about this earlier in a couple of places too. Usually mentioned in the same breath as "terabyte 3.5" drive".
I'm not sure what makes notebook drives more expensive currently - perhaps because they're targeted towards notebooks. Just read somewhere that notebooks outsold desktops for the first time, so hopefully price of 2.5" drives will drop as volume increases. The 5.25" HDD was replaced by 3.5" devices, so it's not inconceivable that 3.5" will be replaced by 2.5".
Off topic : reportedly heard on a home shopping channel in another country - "This laptop is really light, but of course the hard disk is currently mostly empty."
Edit : that flash animation is really funny I read about this earlier in a couple of places too. Usually mentioned in the same breath as "terabyte 3.5" drive".
Last edited by lenny on Wed Jun 08, 2005 1:28 pm, edited 1 time in total.
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LOL - My hard drive is half full... but my battery is almost empty, so they cancel out.
I wonder if a hard drive eats up more power to spin when its full cause its so much heavier... LOL
Ok, enough of that...
My guess for the price is the fact that notebook drives have to be smaller, have to endure much more extremes, and have to endure those extremes much faster than a 3.5". Also, because the platters are smaller, and have to fit in much more of a strict tolerance, they need to use high-precision parts in order to be within parameters.
Its not easy running 5400 RPM in a space that's almost 1/4 the size of 3.5" disks. That's just my thoughts though...
I wonder if a hard drive eats up more power to spin when its full cause its so much heavier... LOL
Ok, enough of that...
My guess for the price is the fact that notebook drives have to be smaller, have to endure much more extremes, and have to endure those extremes much faster than a 3.5". Also, because the platters are smaller, and have to fit in much more of a strict tolerance, they need to use high-precision parts in order to be within parameters.
Its not easy running 5400 RPM in a space that's almost 1/4 the size of 3.5" disks. That's just my thoughts though...
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Re: Perpendicular storage gives 2.5" HDD better capacit
So far it is a 60% density increase over current technology. I'm sure many people expected more (myself included) but as with all technology, the 1000% higher density figure is probably the theoretical limit.Edward Ng wrote:I thought this would be some nice news for many here. I know I'm stoked about it! The current capacity of 2.5" drives is what keeps many people from changing over, but this should help out a bunch (no word yet on pricing, or how these drives will compare to current parallel storage 3.5" drives, in terms of GB/$). Although it's true, there's nothing stopping them from making 3.5" drives on this same technology...
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Seagate announced the availability of their 160gb 2.5" Perpendicular storage hard drive: 160gb in the 2.5" form factor is pretty cool. I assume then that the perpendicular stuff allowed Seagate to increase their 2.5" platter density from 50gb to 80gb judging from their previous 2-platter high of 100gb.
EDIT: On second reading, it's a paper announcement with availability in the winter:
"The Seagate 500GB DB35 Series will ship this summer. The Seagate EE25 Series will ship this fall. The Seagate Barracuda 7200.9 and the Seagate 120GB Portable External Hard Drive will start shipping later this summer. The Seagate 500GB External Hard Drive will ship this fall. The Seagate Momentus 5400 FDE and the Momentus 5400.3 will ship this winter."
http://www.hexus.net/content/press_rele ... Q9MTcxOA==
Let's get Perpendicular!!
btw, Hitachi's little perpendicular music video is great!! Fits into the "Schoolhouse Rock" style perfectly (In fact, the intro looks and sounds a lot like the "I'm just a Bill, on Capital Hill" song)
EDIT: On second reading, it's a paper announcement with availability in the winter:
"The Seagate 500GB DB35 Series will ship this summer. The Seagate EE25 Series will ship this fall. The Seagate Barracuda 7200.9 and the Seagate 120GB Portable External Hard Drive will start shipping later this summer. The Seagate 500GB External Hard Drive will ship this fall. The Seagate Momentus 5400 FDE and the Momentus 5400.3 will ship this winter."
http://www.hexus.net/content/press_rele ... Q9MTcxOA==
Let's get Perpendicular!!
btw, Hitachi's little perpendicular music video is great!! Fits into the "Schoolhouse Rock" style perfectly (In fact, the intro looks and sounds a lot like the "I'm just a Bill, on Capital Hill" song)
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final bit : a 5"1/4 30MB hdd is really small, a 3"1/2 1GB is much bigger than it, and a 2"1/2 40GB hdd is much bigger than the preceding 3"1/2 onethetoad30 wrote:LOL - My hard drive is half full... but my battery is almost empty, so they cancel out.
I wonder if a hard drive eats up more power to spin when its full cause its so much heavier... LOL
Ok, enough of that...
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We buy notebook hard drives because they offer low noise, low vibration, and low heat, not because we enjoy paying more for less storage.
For those who have the money to burn, perpendicular technology in laptop drives should make it possible to obtain all three of the above, and still have a descent amount of storage space.
For those who have the money to burn, perpendicular technology in laptop drives should make it possible to obtain all three of the above, and still have a descent amount of storage space.