PATA can reach 133MBps 9 that's 133 megabytes per second. SATA does 3Gbps, and as you say, 6Gbps, that's 3 gigabits per second and 6 gigabits per second, roughly 375megabytes per second and 750 megabytes per second. Modern high-speed desktop drives are barely breaking 80megabytes per second.
It seems only the high-end SSDs that cost $100 for 80GB can start to reach the limit of even SATA 3Gbps (I think they started hitting 200megabytes...).
No, the drive interface was never the limiting factor in speed - the interface speed jumped faster than drives can pull data off the media.
How does seek time relate with RPM? I thought rpm just revolved around how fast the drive spins and seek time gave the average seek time it takes to move from one cylinder of data to another? I know together, you can estimate data transfer rate, but I am still confused how a faster RPM leads to lower seek time. I could see it leading to faster transfer rates, but not lower seek times.
They aren't just for enterprises anymore. The ASUS P6T motherboard that I just ordered has the controller built-in and I'm going to take advantage of it.
They're pretty much the same price as Raptor drives but they're 15k RPM instead of 10k.
Wait Mr. Buchanan! You did forget to mention one important bit- CACHE SIZE. I know Western Digital sells the same 7200RPM 160GB drive with either a 2, 8 or 16MB buffer.
Does a hard drive with a faster RPM (say, 7200 RPM over 5400 RPM) make your computer faster in general, or only your data transfers faster? Or is that one in the same?
@John_001: I'm actually upgrading my desktop to a 10,000RPM drive next week (one of the few decent Black Friday deals), gonna see how much it changes things on my end, though for gaming, it helps more in a game like WoW where it's constantly pulling stuff from the disk.
Ok, I probably sound stupid to a lot of people here, but why can't they manufacture some sort of super thin - magnetically neutral piece of plastic or something to go in between the platters and the head? Or something along those lines. Will someone please explain why this wouldn't work? Thank you!
@LiviaSnake: I don't know why you would want a thin piece of plastic between both. The space between the head and the platter is smaller than a dust particle. That's why hard drives are vacuum sealed. A dust particle or human hair is wide enough to destroy the contact.
If you were to put something between them, it would be along the lines of a membrane, but due to the thickness you won't have much protection, conductivity, etc.
@1.21Gigawatts: Don't all hard drives have a hole to allow air into them due to pressure? It's usually surrounded by a sticker which says, don't cover this hole.
@SherriffBacon: Well, you jusr broke the rules by telling everyone which rules he broke. You should have just silently kicked his ass and called it a night.
@N@tedog: My points exactly gentlemen. So many people still think their harddrive will never fail and get upset at others when it does and they haven't backed up any info.
My big question is how did I live so long with a 160MB drive, then with a 1.4g, and finally a 6g, and now I carry one flash drive that can hold all three of those drives, and also managed to fill a 80gb hard drive so I had to buy a 500gb drive? Does Moores law apply to the amount of crap I dl, or is it related to my online connection speed?
@Git Em SteveDave loves this guy->★: It is reasonable to assume that as processors are able to perform exponentially more calculations, that the number of tasks requested will rise as well.
As processors *can* do more, programmers will tend to request more. As programs demand more, they will tend to increase in size. As programs increase in size, storage requirements increase...
Development of storage peripherals doesn't increase in lock-step fashion, but the trend tends to be for researchers and manufacturers to increase by orders of magnitude rather than by incremental amounts. Since numbers of platters or heads are doubled or tripled, storage space ramps up dramatically.
With the tendency for people to collect, hoard, save and create things, this generally means we will usually approach the storage capacity of our media. With the advent of the internet, streaming media, digitalization of art, books, music, television, movies and more, the possibilities for *what* we store become incredibly large. Not long ago there were few media options besides text files, small, grainy GIF images, and the occasional VOC or MID files, aside from the executables and command files we ran.
There is probably a formula to be extrapolated from all of this, but I am too lazy and poor at math to discover it!
(I have similar theories about closet sizes, lingerie-drawer sizes and numbers of shoes and panties, but that belongs on Fleshbot!) ;)
@ILikeMacsWhatAboutIT: If I learned nothing else from watching I Am Legend, it's that you're not thorough unless you're making six redundant copies -- even if there's nobody else alive to use your data.
@RacecarBoobTat: If the good doctor was really concerned about retaining his important research data, he wouldn't have used a string of LaCie Porsche bricks. C'mon man, get some G-techs at least!
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It seems only the high-end SSDs that cost $100 for 80GB can start to reach the limit of even SATA 3Gbps (I think they started hitting 200megabytes...).
No, the drive interface was never the limiting factor in speed - the interface speed jumped faster than drives can pull data off the media.
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They aren't just for enterprises anymore. The ASUS P6T motherboard that I just ordered has the controller built-in and I'm going to take advantage of it.
They're pretty much the same price as Raptor drives but they're 15k RPM instead of 10k.
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If you were to put something between them, it would be along the lines of a membrane, but due to the thickness you won't have much protection, conductivity, etc.
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Ultimately as does man.
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As processors *can* do more, programmers will tend to request more. As programs demand more, they will tend to increase in size. As programs increase in size, storage requirements increase...
Development of storage peripherals doesn't increase in lock-step fashion, but the trend tends to be for researchers and manufacturers to increase by orders of magnitude rather than by incremental amounts. Since numbers of platters or heads are doubled or tripled, storage space ramps up dramatically.
With the tendency for people to collect, hoard, save and create things, this generally means we will usually approach the storage capacity of our media. With the advent of the internet, streaming media, digitalization of art, books, music, television, movies and more, the possibilities for *what* we store become incredibly large. Not long ago there were few media options besides text files, small, grainy GIF images, and the occasional VOC or MID files, aside from the executables and command files we ran.
There is probably a formula to be extrapolated from all of this, but I am too lazy and poor at math to discover it!
(I have similar theories about closet sizes, lingerie-drawer sizes and numbers of shoes and panties, but that belongs on Fleshbot!) ;)
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.....
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I have everything double, sometimes triple backed up.
Shake and Bake! That JUST happened!
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[odeo.com]