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Bug#684128: SI units (was: failure to communicate)



Am Freitag, den 05.04.2013, 12:59 +0100 schrieb Dmitrijs Ledkovs:
> The default to base-10 units, is good as majority of the installer
> deals with HDD drives (not SSD) and not RAM.

SSD manufactures use base-10 units, too. Even 128 GB SSDs have 128 *
10^9 bytes for the users, but 128 * 2^30 bytes internally. The
difference between 128 GiB and 128 GB (9.44 GB) is used for
over-provisioning.

> ps. there are disk manufactures that mix base-2 and base-10 units.
> E.g. using one to calculate "1MB" and then using the other multiply
> and gain GB/TB factors /o\

I know one example: The "1.44 MB" labeled floppy, which contains twice
as much space as a "720 KB" floppy. The "720 KB" floppy has 720 KiB and
the "1.44 MB" has 2 * 720 KiB = 1.44 * 1000 * 1024 bytes = 1.41 MiB =
1.47 MB!

-- 
Benjamin Drung
Debian & Ubuntu Developer


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