Friday, June 26th 2009

Hard Rectangular Drive Could be the Hard Disk Answer to SSDs

A company called DataSlide has decided its not time for mechanical disk drives also known as hard disk drives (HDD) to roll over and die with SSDs beating them in just about every aspect other than price. The key aspect of the new technology is that it does not require the data platter to be spun like conventional hard disk drives do. For a start this provides savings in power consumption and due to the use of magnetic recording media as found in hard disk drives should allow the hard rectanguar drive (HRD) to be cheaper than an SSD or at least provide significantly more usable space for your money. A diagram explaining the technology and the manufacturers details and specifications follow.


DataSlide's Hard Rectangular Drive (HRD) capitalizes on standard base process technologies to create a dramatically new way to store and retrieve data with magnetic media:

1. Leverage LCD process
2. Use standard HDD sputtering/plating MEMS process
3. Use HDD perpendicular media DSSC/Oerlikon-Balzers coatings

DataSlide applies technology in new, patented ways to achieve unprecedented high performance
160,000 IOPS & 500MB/sec and low power <4 Watts for a magnetic storage device:

1. A piezoelectric actuator keeps the rectangular media in precise motion
2. A diamond solid lubricant coating protects the surfaces for years of worry free service
3. A massively parallel 2D array of magnetic heads reads from or writes to up to 64 embedded heads at a timeSource: DataSlide
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70 Comments on Hard Rectangular Drive Could be the Hard Disk Answer to SSDs

#2
InnocentCriminal
Resident Grammar Amender
Now that is interesting, if these are slightly more expensive than regular HDDs but far cheaper than SSDs, then these could prove successful. I look forward to seeing reviews.
Posted on Reply
#3

+1 on that criminal. This seems promising, cracking bit of news there alex :toast:
#4
alexp999
Staff
by: InnocentCriminal
Now that is interesting, if these are slightly more expensive than regular HDDs but far cheaper than SSDs, then these could prove successful. I look forward to seeing reviews.
According to a slide on the site, thats the market they are aiming at as they make a point SSDs are expensive.

Fingers crossed.
Posted on Reply
#5
human_error
ooo this looks very interesting - this seems to have come out of nowhere and could be a very nice stopgap tech until SSDs become super capacity and relatively low price.

Plus 500MB/sec is amazing from a single drive - raid 0 a couple for 1GB/sec read speeds *faints from thought of those speeds*

Of course SSDs will still have better latencies but we could now see these with faster speeds vs. the better latencies of SSDs - decisions, decisions...

Thanks for the info Alexp :toast:
Posted on Reply
#6
Papahyooie
Im not quite sure I understand the tech just right... but wouldnt this also eliminate the drive spinning, and cut down on drive death from vibration / movement, making them good for netbooks, etc, just like SSD?
Posted on Reply
#7
Black Hades
Well I guess you CAN reinvent the wheel after all:)

EDIT:
by: Papahyooie
Im not quite sure I understand the tech just right... but wouldnt this also eliminate the drive spinning, and cut down on drive death from vibration / movement, making them good for netbooks, etc, just like SSD?
It still vibrates, the media platter moves, and more than before it's in direct contact with lubricant solid matter...that concerns me because there is no such thing as 0% friction and heat and wear and tear could still occur. But what do I know I'm not an engineer.

I hope it doesnt hum or even worse buzz :p
Posted on Reply
#8
Bundy
by: Black Hades
Well I guess you CAN reinvent the wheel after all:)

EDIT:


It still vibrates, the media platter moves, and more than before it's in direct contact with lubricant solid matter...that concerns me because there is no such thing as 0% friction and heat and wear and tear could still occur. But what do I know I'm not an engineer.

I hope it doesnt hum or even worse buzz :p
There is always "something" they don't mention.
Posted on Reply
#10
Papahyooie
ah i see the oscilliating part now. Piezo? Isnt that like tiny little movements caused by electric current? Like a piezo speaker... voltage spike would not be good in that case... im sure they know more than me though lol.
Posted on Reply
#11
Black Hades
by: Bundy
There is always "something" they don't mention.
As long as they state "HDD reliability or better".... :laugh:

Seriously I imagine it's bound to produce more noise than a SSD. The quantification of that "more" remains open to debate & tests.
Posted on Reply
#12
Cuzza
Now the hard part: get it to market before SSDs become properly affordable.

lol, they have reinvented the wheel, and made it square! seems that with those 64 heads one on each sector, the "disk" still has to move quite a long way, about 1cm? or am i getting this wrong?
Posted on Reply
#13
$ReaPeR$
+1 to that cuzza i really like this post it looks very promising for our storage future.
Posted on Reply
#14
Mussels
Moderprator
i have no idea how this works.
Posted on Reply
#15
MopeyMartian
by: Bundy
There is always "something" they don't mention.
AHAHAHAHAHAHAHAHA! :laugh:

It will be louder than any fan you've ever heard and we'll nickname it "The Mosquito".
Posted on Reply
#16
h3llb3nd4
by: Mussels
i have no idea how this works.
Me too,

is it the data which moves to the heads?
Posted on Reply
#17
Mussels
Moderprator
by: h3llb3nd4
Me too,

is it the data which moves to the heads?
magic. just magic.
Posted on Reply
#19
MopeyMartian
I think I get it...

There are read/write heads covering the top and bottom layers while the middle layer moves only at the nano-scale. The data "goes to" the heads but there are so many heads the data layer hardly moves at all.
Posted on Reply
#20
Black Hades
by: MopeyMartian
AHAHAHAHAHAHAHAHA! :laugh:

It will be louder than any fan you've ever heard and we'll nickname it "The Mosquito".
Remember floppy disk write noise? Banish that thought now...


The lubricant is a solid synth diamond coating that "protects the surfaces for years of worry free service". cant we just keep them separated by a nice vacuum that.. ahem... I dont know is in theory frictionless?
I'm not assuming I know better than ppl that actually know what can or cant be done of course.
Posted on Reply
#21
MopeyMartian
If it's nanotech then we're probably referring to diamonds on a molecular level. Perhaps some kind of thin diamond paste, or... something.
Posted on Reply
#22
Mussels
Moderprator
by: MopeyMartian
If it's nanotech then we're probably referring to diamonds on a molecular level. Perhaps some kind of thin diamond paste, or... something.
or as i said, magic.


seriously, i can normally keep up with tech and figure it out fast... this one just makes me :twitch:
Posted on Reply
#23
Cuzza
No i was wrong it only moves a tiny amount. here's the low down.

The rectangle is split into 64 sectors, each with one head. These can all read or write at once. But the head is not fixed. There are 1000s of them on the surface made of semiconductor, but only one of these works at any one time within the sector. Which one is used is addressed by row/column. This allows the "coarse" control over the movement around the "disk".

In conjunction with this the whole "disk" moves by the piezo actuators. This allows the "fine" control over the movement of the deads to the desired location.
Posted on Reply
#24
Black Hades
by: MopeyMartian
If it's nanotech then we're probably referring to diamonds on a molecular level. Perhaps some kind of thin diamond paste, or... something.
It states on their site:
"A diamond solid lubricant coating protects the surfaces for years of worry free service"
It cant be a paste because nothing is more abrasive as loose diamond particles. That's what they coat on power cutting tool blades. Kind of not the effect one would want on a sensitive magnetic media.
Also even if on a molecular level the diamond coating is perfectly plane, heat still occurs because of fast moving tangent surfaces. Where there's heat there's entropy.
Posted on Reply
#25

So then according to the plan view, there is a spring located on the right side that would push against the spring bar on the left side. They then allow this bar to arc positive and negative, controlled somehow,piezeo?, allowing the media to move but the heads remain stationary. This must have some noise factor as you can not vibrate a bar, probably at least several thousand times per second, without noise. On the bright side if they keep it standard size, there are a lot of HDD noise dampening products out there.
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