Actual Formatted Space?

Posted by: Mark Miller

Actual Formatted Space? - 02/01/2000 03:18

I'm wondering about the actual (formatted) space available for the various drive sizes offered. I have a "20 Gig" unit comprised of two drives. If emplode is reporting correctly, I actually have 18,328Mb available. That's about 1.7 Gigs lost to overhead/formatting? Anyway, I might be tempted to get the next version player (depending on the discount) and I'm interested in the formatted space available for the larger drives. And if one large drive (say an 18Gig) would be more efficient (quicker synchs, more space, etc.) than two 10 Gig drives. Thanks!

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Posted by: tfabris

Re: Actual Formatted Space? - 02/01/2000 13:38

Be careful how you count the gigs/megs/k. Some hard disk manufacturers like to say a megabyte is a million bytes. It allows them to say that their hard disks are bigger than they really are. A million bytes is actually significantly less than a real megabyte. A real megabyte is 1024 kilobytes, which, in turn, is 1024 bytes. So a real megabyte 1,048,576 bytes, and a real gigabyte (1024 megabytes) is 1,073,741,824 bytes. It's possible that there's a lot less overhead than you think, because you're getting your assumed totals from two different sources: one that calculates correctly, and one that assumes meg=million.

Posted by: altman

Re: Actual Formatted Space? - 02/01/2000 13:55

HDD manufacturers work in 1Mb=1,000,000 bytes. Emplode works as 1Mb=1,048,576 bytes.

Eg: a 10.0Gb disk is actually 9536Mb in "real" units. There is obviously also a formatting overhead, though this isn't too bad in real life. We reserve 80Mb on each drive for operating software/user space/dynamic data.

Hugo