HD154UI 3-Drive RAID0 Benchmarks

[Dr.Pants]

Beware of smiley entanglements and shun the furious bandersnatch!

Ten kinds of LOL. Don't you mean Frumious bandersnatch?

...wouldnt be hard to track those particles though (basically because there are none! )

Well, I personally don't know how measurements are taken... I do know one device that my brother is working on is measuring the Brownian motion of a molecule by the beat frequency of two 50 GHz lasers. I know that there is a slight variation in frequency of the lasers... If not, then its probably measurable from the phase shift [/tangent] And when I say working on, I mean modeling on a CRUNCH4 supercomputer. Takes about an hour to load the libraries

If you have taken chem at all, the electron orbitals are described as places where the electron is "most likely" to occur at - for the reason that measuring the electron will result in a loss of data. One can attempt to measure both, but will lose accuracy at the gain of getting a "mean" figure. Measuring particles that small is do-able, but at the same time the measurements rely on math so obscure that it is mind-numbing - see also beat frequency and phase shift to measure Brownian motion (i.e., temperature).

 

[nanofrog]

no no the other way, the one before PATA....

I'm not sure of which one you're thinking of, so bear with me.
IDE = PATA

But prior to that, you had MFM, RLL, and ESDI in personal computers. (Other than SCSI, and was more common for lower cost systems).

• How HDDs currently work:
  http://www.research.ibm.com/research/gmr.html
  
  
  
• An explanation of quantum photonics is rather involved but basically it's the approximation and interaction (interferometry) of photons from single-photon sources of/by single-photon detection. The miniaturization of logic is possible through "wave-guide" quantum circuits which is basically a way to direct photons and photon streams down a particular "path" on silicon fabrications - umm, like chips now - kinda - but with photons.
  
  http://arxiv.org/pdf/0705.4193v1
  More: http://www.physorg.com/tags/quantum+computing/
  
  Storage for such systems could take any form really - including all current ones but I bet Nanofroggy is talking about holographic based memory systems HDSS or other which typically works via miniature laser arrays reading and writing in 3D to some kind of polymer or something. Maybe HVD (http://www.dailytech.com/article.aspx?newsid=3641) or maybe HVC?
  
  General: http://en.wikipedia.org/wiki/Holographic_memory

♆

Yup.

I'll have to check out the links you gave, as a simple explaination isn't so easy to come by.

 

[DoFoT9]

Well, I personally don't know how measurements are taken... I do know one device that my brother is working on is measuring the Brownian motion of a molecule by the beat frequency of two 50 GHz lasers. I know that there is a slight variation in frequency of the lasers... If not, then its probably measurable from the phase shift [/tangent] And when I say working on, I mean modeling on a CRUNCH4 supercomputer. Takes about an hour to load the libraries

had a google for details on the CRUNCH4 but couldnt find anything that is some intense research, and those libraries!! seeing as though my C++ program loads in a matter of seconds i would hate to see it load those libraries on my weak MBP HA!

If you have taken chem at all, the electron orbitals are described as places where the electron is "most likely" to occur at - for the reason that measuring the electron will result in a loss of data. One can attempt to measure both, but will lose accuracy at the gain of getting a "mean" figure. Measuring particles that small is do-able, but at the same time the measurements rely on math so obscure that it is mind-numbing - see also beat frequency and phase shift to measure Brownian motion (i.e., temperature).

we had a basic science class here in australia, never was into science that much at a young age. we didnt get taught that the electron was "most likely" to occur in the electron orbits - we were just told that they "were" there. dumbing it down for us most likely. this is all so over my head haha!

I'm not sure of which one you're thinking of, so bear with me.
IDE = PATA

But prior to that, you had MFM, RLL, and ESDI in personal computers. (Other than SCSI, and was more common for lower cost systems).

SCSI!!! thats it!!! my mind seems to be getting worse and worse by the day, and i turn 20 next week

 

[Tesselator]

I thought all HDDs even today still incorporated RLL data stream coding. No?

MFM is basically the same kind of thing (a data coding slash encoding format slash technique) but was used for floppies and in some tape systems.

I thought these were one step removed from how the hardware actually works and were more of a data coding/encoding or "formatting" if I may, and didn't care what kind of interface it was pumped through?

ESDI is an actual interface standard - or was. It's like IDE, EIDE, ATA, ATAPI, SATA, SCSI, or even USB and many of the IEEE interface standards in that it's a kind of bus interface.

 

[Dr.Pants]

had a google for details on the CRUNCH4 but couldnt find anything that is some intense research, and those libraries!! seeing as though my C++ program loads in a matter of seconds i would hate to see it load those libraries on my weak MBP HA!

Really? Dang! I'll have to ask my brother the details, but he mainly handles OS-stuff, not actually swapping parts out. Personally, I'd wager on it being IBM or Sun. Still, the libraries have to be enormous - it is a scientific-prediction program, after all, and we scientists are very picky about errors Also, maybe Crunch-4 is an in-house name for the computer It is at the U of Washington, so it could be assembled from parts.

we had a basic science class here in australia, never was into science that much at a young age. we didnt get taught that the electron was "most likely" to occur in the electron orbits - we were just told that they "were" there. dumbing it down for us most likely. this is all so over my head haha!

Yeah. A lot of science gets dumbed down in the early years in the US, too. It sucks [expletive]. However, yes, electrons are in a probability field where they will "most likely" occur, thanks to uncertainty. Not to mention orbitals come in all sorts of weird shapes... <<Science lesson deleted to save precious bytes>> A wikipedia search for orbitals would give better information then I can.

ESDI is an actual interface standard - or was. It's like IDE, EIDE, ATA, ATAPI, SATA, SCSI, or even USB and many of the IEEE interface standards in that it's a kind of bus interface.

So many standards to choose from, so little time!

 

[DoFoT9]

Really? Dang! I'll have to ask my brother the details, but he mainly handles OS-stuff, not actually swapping parts out. Personally, I'd wager on it being IBM or Sun. Still, the libraries have to be enormous - it is a scientific-prediction program, after all, and we scientists are very picky about errors Also, maybe Crunch-4 is an in-house name for the computer It is at the U of Washington, so it could be assembled from parts.

could you imagine the power of that thing? id love exabytes of storage and TB of RAM haha, would make Safari nice and snappy!

Yeah. A lot of science gets dumbed down in the early years in the US, too. It sucks [expletive]. However, yes, electrons are in a probability field where they will "most likely" occur, thanks to uncertainty. Not to mention orbitals come in all sorts of weird shapes... <<Science lesson deleted to save precious bytes>> A wikipedia search for orbitals would give better information then I can.
!

i guess it has to get dumbed down at that age, i vaguely understand that - even the smart people would (its really only for the elite i guess)..

 

[nanofrog]

I thought all HDDs even today still incorporated RLL data stream coding. No?

MFM is basically the same kind of thing (a data coding slash encoding format slash technique) but was used for floppies and in some tape systems.

I thought these were one step removed from how the hardware actually works and were more of a data coding/encoding or "formatting" if I may, and didn't care what kind of interface it was pumped through?

Yes, MFM and RLL are technically encoding standards, and are still with us. MFM for floppies, and RLL for others, such as optical media (CD all the way to Blu Ray). But the interface was different for each, and wasn't even mentioned. Just the encoding acronym.

Why?

Simple actually. The drives didn't have controllers on them! They used separate interface cards, that would work with specific drives. No standard for the hardware until the data hit the bus. Drives and controllers were specific to manufacturers. But the encoding was unified...

It was later that the interface type became the known terminology, due to a single standard that included everything. MUCH easier to deal with. Aren't standards wonderful?!?

 

[DoFoT9]

Simple actually. The drives didn't have controllers on them! They used separate interface cards, that would work with specific drives. No standard for the hardware until the data hit the bus. Drives and controllers were specific to manufacturers. But the encoding was unified...

It was later that the interface type became the known terminology, due to a single standard that included everything. MUCH easier to deal with. Aren't standards wonderful?!?

burt thats ridiculous! (just like how mobile companies have different plugs, now being fixed but). they make things hard for themselves but i guess it helps with competition or something...

 

[nanofrog]

burt thats ridiculous! (just like how mobile companies have different plugs, now being fixed but). they make things hard for themselves but i guess it helps with competition or something...

Hint: $$$ (these days)

Proprietary designs mean little to no competition on the particulars, and they can charge more. The customer over a barrel bit.

At that time however, it was likely as much, or more to do with the fact there wasn't any standard or reference really. They had the bus and an encoding scheme. So each company's designers were on their own to find a solution on the hardware side, and ended up with different designs from one another. So more out of happenstance than intent IMO. It didn't stop them from pushing the limits on pricing though...

 

[DoFoT9]

Hint: $$$ (these days)

Proprietary designs mean little to no competition on the particulars, and they can charge more. The customer over a barrel bit.

At that time however, it was likely as much, or more to do with the fact there wasn't any standard or reference really. They had the bus and an encoding scheme. So each company's designers were on their own to find a solution on the hardware side, and ended up with different designs from one another. So more out of happenstance than intent IMO. It didn't stop them from pushing the limits on pricing though...

yea thats it, companys need money to get investors.. creating your own part/idea/whatever and patenting it would be a good way to ensure that the money keeps rolling in (providing that it sells well of course).

thats why i hate the current (and basically the ONLY) ISP i am with..annoying.

can i ask what area your in?? where is your knowledge coming from haha!? reading i guess helps

 

[Loa]

dumbing it down for us most likely.

Not exactly. At the chemistry level (lots of atoms/molecules) the probabilities collapse into virtual certainty.

Similar thing to this idea: flipping a coin has a 50% probability for head, and 50% prob for tail. There is no way (for a balanced coin) for anybody to predict if the next flip will result in one of the other. But flip 100 of them and the average will be very close to 50% of each. Flip 1000 and you'll be even closer. Flip trillions and you'll get your 50%, thus "collapsing" the probability. That initial 50% becomes a certainty if you flip enough coins.

It's a similar thing with chemistry (as opposed to physics where you can study 1 atom): chemical reactions usually involve a huge number of atoms...

Loa

 

[Tesselator]

WOW! That was a very intelligent reply!

Even mentally-meager-me understood it. Nice! Thanks!

 

[Dr.Pants]

Not exactly. At the chemistry level (lots of atoms/molecules) the probabilities collapse into virtual certainty.

Similar thing to this idea: flipping a coin has a 50% probability for head, and 50% prob for tail. There is no way (for a balanced coin) for anybody to predict if the next flip will result in one of the other. But flip 100 of them and the average will be very close to 50% of each. Flip 1000 and you'll be even closer. Flip trillions and you'll get your 50%, thus "collapsing" the probability. That initial 50% becomes a certainty if you flip enough coins.

It's a similar thing with chemistry (as opposed to physics where you can study 1 atom): chemical reactions usually involve a huge number of atoms...

Loa

Seconded, very good explanation! However, the last paragraph I tend to disagree with, as electron orbitals/probability fields come into play when determining bond strength and hybridization - well over a lot of people's heads, but a trans- double bond (which would be hybridized) releases less energy then a cis- double bond when broken, for instance; there are more chemistry examples, but I'm OT enough as it is. However, multiply by Avegadro's number and making the bond strengths mean something in the real world, the difference becomes noticeable.

WOW! That was a very intelligent reply!

Even mentally-meager-me understood it. Nice! Thanks!

Mentally meager? Your smarter then I am, Tesselator.

 

[nanofrog]

can i ask what area your in?? where is your knowledge coming from haha!? reading i guess helps

Engineer.

...However, the last paragraph I tend to disagree with, as electron orbitals/probability fields come into play when determining bond strength and hybridization - well over a lot of people's heads, but a trans- double bond (which would be hybridized) releases less energy then a cis- double bond when broken, for instance; there are more chemistry examples, but I'm OT enough as it is. However, multiply by Avegadro's number and making the bond strengths mean something in the real world, the difference becomes noticeable.

What department are you in?
I'm getting flashbacks from my materials courses.

 

[Loa]

as electron orbitals/probability fields come into play when determining bond strength and hybridization

I know a lot more about physics than chemistry! I don't know why, but chemistry is just about the only science I'm not very interested in. Maybe it's because it's less related to my own field than the others...

But I agree: we veered "somewhat" off topic. lol

Loa

 

[DoFoT9]

Not exactly. At the chemistry level (lots of atoms/molecules) the probabilities collapse into virtual certainty.

Similar thing to this idea: flipping a coin has a 50% probability for head, and 50% prob for tail. There is no way (for a balanced coin) for anybody to predict if the next flip will result in one of the other. But flip 100 of them and the average will be very close to 50% of each. Flip 1000 and you'll be even closer. Flip trillions and you'll get your 50%, thus "collapsing" the probability. That initial 50% becomes a certainty if you flip enough coins.

It's a similar thing with chemistry (as opposed to physics where you can study 1 atom): chemical reactions usually involve a huge number of atoms...

Loa

wow, that explained it really well for me!! so i guess school science is more "generalised" and not as focused on the "tidbits"? would that suffice? thanks for the explanation!

Engineer. p

ahhh ok schweet, got a friend doing civil engineering :S, looks so hard!

But I agree: we veered "somewhat" off topic. lol

Loa

and i take us back to post #87 (tsktsk)::

Hey! I'm not off-topic THAT often.

DoFoT9

 

[Tesselator]

I don't think we're at all off-topic yet!

HDD Benchmarks -> I/O Speed -> I/O Mechanisms -> I/O theories and materials.

Yup, still on topic and 100% relative!

 

[DoFoT9]

I don't think we're at all off-topic yet!

HDD Benchmarks -> I/O Speed -> I/O Mechanisms -> I/O theories and materials.

Yup, still on topic and 100% relative!

ohh i see the basics of flipping a coin are all relevant makes sense

 

[nanofrog]

ohh i see the basics of flipping a coin are all relevant makes sense

Of course! Can't escape the necessity of performing statistics...

 

[Dr.Pants]

Of course! Can't escape the necessity of performing statistics...

ohh i see the basics of flipping a coin are all relevant makes sense

When in doubt, its a probability field!

What department are you in?
I'm getting flashbacks from my materials courses.

I'm a Chemistry Major Although I am probably going to double-major in both Physics and Chemistry. Also probably going for a PhD in Chem, maybe Physics, I'm still young (younger then DoFoT9 ). Unfortunately, trans- and cis- configurations apply to not only organic molecules (which I was talking about), but also coordination compounds - the latter would be probably what is interesting to talk about on silicone, with differences in resistance, if any

 

[DoFoT9]

Of course! Can't escape the necessity of performing statistics...

HAHAHAHA not in this case

When in doubt, its a probability field!

I'm a Chemistry Major Although I am probably going to double-major in both Physics and Chemistry. Also probably going for a PhD in Chem, maybe Physics, I'm still young (younger then DoFoT9 ). Unfortunately, trans- and cis- configurations apply to not only organic molecules (which I was talking about), but also coordination compounds - the latter would be probably what is interesting to talk about on silicone, with differences in resistance, if any

w0wzers! younger then me!! its times like these when i feel dumb and retarted

 

[nanofrog]

I'm a Chemistry Major Although I am probably going to double-major in both Physics and Chemistry. Also probably going for a PhD in Chem, maybe Physics, I'm still young (younger then DoFoT9 ). Unfortunately, trans- and cis- configurations apply to not only organic molecules (which I was talking about), but also coordination compounds - the latter would be probably what is interesting to talk about on silicone, with differences in resistance, if any

Cis and trans motion is relevant to materials, not just the electronic properties. It helps with microscopy, particularly Infrared spectroscopy, such as FTIR.