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SATA2 is an automatic bottleneck... - Page 3

post #21 of 30
Quote:
Originally Posted by pauldovi
Im saying it is rediculous that you wanted him to prove the cow thing...
You took that seriously? lol
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post #22 of 30
Thread Starter 
... I did...
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post #23 of 30
Back on topic guys. My RAID array of 2 Seagate 7200.9 drives with SATAII on them reach a burst speed of 353 MB/S, or 3.53 GB/S. Now, I know that in RAID0, it's split up but you can see that if you split it up evenly, it's around 1.765 GB/S, assuming that each drive bursts at the same speed and that the formula's correct. SATA 3GB/S (SATAII is the group of people who developed it) does not call for 3GB/S transfer speeds but some drives incorporate it.
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post #24 of 30
Thread Starter 
Quote:
Originally Posted by Burn
Back on topic guys. My RAID array of 2 Seagate 7200.9 drives with SATAII on them reach a burst speed of 353 MB/S, or 3.53 GB/S. Now, I know that in RAID0, it's split up but you can see that if you split it up evenly, it's around 1.765 GB/S, assuming that each drive bursts at the same speed and that the formula's correct. SATA 3GB/S (SATAII is the group of people who developed it) does not call for 3GB/S transfer speeds but some drives incorporate it.
I don't understand what you are going at? The 1.765 GB/S fits the 2GB/S max...
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post #25 of 30
Theres a big difference between GB/s and Gb/s. 1 GB or Gigabyte is 8 Gb or 8 Gigabits.

SATA2 has max burst rate of 3 Gb/s, and that is 375 MB/s or 0.375 GB/s, so that is nowhere near the 2GB/s transfer rate between the NB and SB.
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post #26 of 30
Thread Starter 
Sneaky little bastards. I think it is all a marketing tool.
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post #27 of 30
Quote:
Originally Posted by HrnyGoat
Theres a big difference between GB/s and Gb/s. 1 GB or Gigabyte is 8 Gb or 8 Gigabits.

SATA2 has max burst rate of 3 Gb/s, and that is 375 MB/s or 0.375 GB/s, so that is nowhere near the 2GB/s transfer rate between the NB and SB.
The bottleneck isn't the transfer bandwidth, it's the rotational speed. If you want speed, get 10k or 15k rpm drives.
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post #28 of 30
Quote:
Originally Posted by amped
I haven't tested it myself, but it's a fact.


There's a giant dome on the MIT campus, and some of the students brought a cow up the stairs one night and put it on top, knowing that cows can't walk downstairs. A crane had to be brought in to get it down.
Sorry for the off topicness but dude, you're not the first one to tell me that. One of my students I was coaching last semester said the same thing and they wanted to do that for their senior prank.... they just couldn't find a cow [/off topic]
    
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post #29 of 30
Quote:
Originally Posted by pauldovi
Same thing is often the case with graphics cards. People are running out to buy these fancy 7800 GPU with memory bandwidth of 54.4 GB/s. Heh, the PCIe can only transfer data to the chipset at 8GB/s
Ah, but see, that memory bandwidth is for to and from the GPU core to the onboard memory, has nothing to do with the expansion slot to which the card is connected.

Well yeah, I guess it's been covered, good thing to remember, lowecase b means bits, upper case B means bytes. And there's eight bits in a byte, so a byte is eight times the size of the bit! I officially hate those words now!
    
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post #30 of 30
Cows can walk down stairs. I lived on a ranch and they can go pretty much anywhere a person can go. There's an old abandoned house on one of the sections of ground that we rent, and it has a baesment. A lot of times in the winter we'll find about as many in there as they could fit. Of corse we had to close it up because they risk the chance of suffocating themselves...
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