Re: md software raid

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Guy Watkins wrote:
If you just used the 300 dots per inch as 1 bit per dot, you could store
15120000 (300*300*8*10.5) bits per side (assuming 1/4 inch border on 8.5x11
paper 2 sided).  That is 1.8MB per page.  You would need 555556 pages.  That
would stack 463 feet high (assuming 100 pages per inch).

Yeah, but who, in their right mind, would stack them all in one pile?

Max

} -----Original Message-----
} From: linux-raid-owner@xxxxxxxxxxxxxxx [mailto:linux-raid-
} owner@xxxxxxxxxxxxxxx] On Behalf Of Chris Green
} Sent: Tuesday, October 27, 2009 11:12 PM
} To: 'Leslie Rhorer'; linux-raid@xxxxxxxxxxxxxxx
} Subject: RE: md software raid
} } I was thinking 300dpi on letter paper gives you about 1mbyte, and you'd
} bloat it by 2x for redundancy, using both sides of the paper.
} But I guess 300 dpi is actually 300 dots per square inch, not 300 per
} linear inch, which means its only 10s of k per page.
} } } -----Original Message-----
} From: linux-raid-owner@xxxxxxxxxxxxxxx [mailto:linux-raid-
} owner@xxxxxxxxxxxxxxx] On Behalf Of Leslie Rhorer
} Sent: Tuesday, October 27, 2009 8:08 PM
} To: linux-raid@xxxxxxxxxxxxxxx
} Subject: RE: md software raid
} } > I'm guessing you could get about a megabyte per sheet of paper this way. } } You've got to be kidding! At 72 points/in, a font size of 8 allows
} for one byte and one space per inch, or about 10 bytes per line.  One can
} fairly easily display 1KB per page, but nowhere near 1MB.
} } > So a 1TB drive would take up 1000000 sheets of paper. Looking at
} > staples.com,
} } Make that more like a billion pages. Remember, the entire Library
} of Congress can fit on a 1T drive.
} } > it looks like that would cost you in the neighborhood of $8000. The ink
} > cartridges
} } It's more like $8 million. } } --
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