My 2TB external harddrive is short 200GB

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My 2TB external harddrive is short 200GB

Postby CrimpJiggler » Wed Feb 01, 2012 12:36 pm

I bought a "2TB" external harddrive but when I mount it for the first time it says there is only 1.8TB free space on it. 200GB seems like a lot of space to go missing lol. Should I format the drive with GParted to see what happens?

EDIT: GParted says it only has 1.82TB so formatting isn't gonna help. The bastards ripped me off. Didn't think they were allowed to say 2.0TB when its actually only 1.82TB.
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Re: My 2TB external harddrive is short 200GB

Postby psilocybin » Wed Feb 01, 2012 1:03 pm

oh I can't count how many times I've had to explain this to people. your OS's idea of "2 TB" is different from the manufacturer's, because the OS uses a base of 2 when calculating data, and the manufacturer uses a base of 10. for example, 2^10 bytes is also known as one kilobyte, because it comes out to about 1000 (but it's actually 1024). since the prefix is "kilo" the manufacturer is actually correct, but it's easier from an engineering aspect to deal with a base of 2 since computers are binary digital machines. so, 2^20 is what your computer considers a Mega (as in, mega bytes), 2^30 is a giga, and 2^40 is a tera. since these units are powers of ten in every other convention than computers (10^3 is kilo, 10^6 is mega, 10^9 is giga, 10^12 is tera), the manufacturers use these units in their correct sense, which winds up giving you less that what your computer considers those units to be.

tl;dr: what's a 2 TB drive go for these days anyway, $30? cry more.
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Re: My 2TB external harddrive is short 200GB

Postby CrimpJiggler » Wed Feb 01, 2012 1:47 pm

Thanks. I'm on Ubuntu, don't know what system it uses to calculate space. As for the price, $120. I got a 1TB drive for $60 a couple of years ago so I don't know why I couldn't find a cheaper 2TB one. They usually get cheaper every year.
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