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Velociraptor...only 300 GB? - Page 2

post #11 of 34
Quote:
Originally Posted by EmerilLIVE View Post
It's the insides that spin "faster."
No, its the outsides.

If a disk spins at 7,200RPM, and say the inside of the disk has a 2cm diameter and the outside is 8cm:

Inner Circumference: 2*3.14 = 6.28cm * 7,200RPM = 45 meters per minute
Outer Circumference: 8*3.14 = 25.12cm * = 180.864 meters per minute
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post #12 of 34
Quote:
Originally Posted by Manyak View Post
No, its the outsides.

If a disk spins at 7,200RPM, and say the inside of the disk has a 2cm diameter and the outside is 8cm:

Inner Circumference: 2*3.14 = 6.28cm * 7,200RPM = 45 meters per minute
Outer Circumference: 8*3.14 = 25.12cm * = 180.864 meters per minute
I'm not sure if you did that right.....the math that is. Shouldn't the inner circumference hold the larger number? Also, wouldn't it make more sense to not measure it in meters per minute, but some other measurement that I can't think of.....I wanna say RPM but that's obviously 7,200....
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post #13 of 34
Quote:
Originally Posted by Dillard13 View Post
I'm not sure if you did that right.....the math that is. Shouldn't the inner circumference hold the larger number? Also, wouldn't it make more sense to not measure it in meters per minute, but some other measurement that I can't think of.....I wanna say RPM but that's obviously 7,200....
lol I'm not sure what measurement you want, meters per second? Just divide those numbers by 60. centimeters per second? multiply it by 10/6.

Just look at a CD. The inside edge of a CD - around the hole - , is smaller than the outside edge. So to perform one full rotation in the same amount of time, the outside has to move faster because it has more distance to cover.
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post #14 of 34
Quote:
Originally Posted by Manyak View Post
lol I'm not sure what measurement you want, meters per second? Just divide those numbers by 60. centimeters per second? multiply it by 10/6.

Just look at a CD. The inside edge of a CD - around the hole - , is smaller than the outside edge. So to perform one full rotation in the same amount of time, the outside has to move faster because it has more distance to cover.
Not by centimeters/meters per second, shouldn't it be completions per minutes or so?
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post #15 of 34
Quote:
Originally Posted by Dillard13 View Post
Not by centimeters/meters per second, shouldn't it be completions per minutes or so?
completions per minute? thats just a fancy way of saying RPM
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post #16 of 34
Quote:
Originally Posted by TnB= Gir View Post
Lol my raid 0 36gb raptors are enough space for me. Stop dl'ing pr0n guys.
Let's see, I have...

~20GB for Vista, ~60GB of games, ~120 GB of video (not porn...), ~30 GB of music, ~5 GB pictures plus various program files and such.

Some people USE their computers, and don't just game on them.
post #17 of 34
Quote:
Originally Posted by Dillard13 View Post
I'm not sure if you did that right.....the math that is. Shouldn't the inner circumference hold the larger number? Also, wouldn't it make more sense to not measure it in meters per minute, but some other measurement that I can't think of.....I wanna say RPM but that's obviously 7,200....
Think of it like this: with one rotation of the platter, you will get more data from the outside in one pass, as one rotation of the outside has more surface area. The whole platter is spinning at the same speed (duh!), so the outside would be quicker.
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post #18 of 34
may be we should just drop this subject about outside faster or inside faster...
but for sure first half performs better.
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post #19 of 34
I tried using 40GB for Vista, it wasn't enough at all.

Even if you install games to a different hard drive, they leave necessary files on the hard drive or partition with the OS. For example, installing Photoshop leaves at least 1.5GBs of files on your OS partition/drive regardless if you install on a seperate hard drive.
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post #20 of 34
Quote:
Originally Posted by poohball View Post
may be we should just drop this subject about outside faster or inside faster...
but for sure first half performs better.
Any HD benchmarks app should be downward sloping on sequential performance. This is due to the fact that data read/write on the other edge is faster.
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