Simviation Forum - Space used on a new drive?

Aug 10^th, 2005 at 5:14pm

Wing Nut Offline
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Well, I installed a new 120 Gig drive today, to replace the 30 gig drive I scavenged when my old 60 Gig drive died out. Installation went ok, but it shows 6 gigs used on it! I understand the need for some space to bew used for Windows and all, but 6 gigs? Isn't that a bit much? I mean it says it's only using megs, so the 6 gigs are totally unaccounted for...

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Reply #1 - Aug 10^th, 2005 at 6:31pm

the_autopilot Offline
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I doubt a windows install of XP takes only 68.7 megs. Something is wrong.

Perhaps it was partitioned incorrectly. Using a partition manager or the XP install cd (boot with it) to check your hard drive and see if their is unpartitioned space.

BTW, is this a SATA or IDE drive?

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Reply #2 - Aug 10^th, 2005 at 7:03pm

Wing Nut Offline
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It's IDE. This is not the Windows drive. I have another 120 Gig drive also, this is my second one giving me a total of 240.

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Reply #3 - Aug 10^th, 2005 at 8:20pm

Scorpiоn Offline
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That's correct Kevin. The more gigs you have, the more that's snatched away from you. I have 500GB, but only 465 are usable. Roll Eyes

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Reply #4 - Aug 10^th, 2005 at 9:05pm

Wing Nut Offline
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Lovely...

Any suggestions as to how I can get the info from the old drive to the new one?

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Reply #5 - Aug 10^th, 2005 at 9:37pm

Scorpiоn Offline
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What I did was I just hooked up the old drive as a slave, and copied what I needed over. Failing that (some folders were protected, so I could only access them from the old drive's XP lon-on), I burned them on to a CD/DVD.

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Reply #6 - Aug 10^th, 2005 at 9:53pm

Wing Nut Offline
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Unfortunately, I have used both of my Slave/Master positions, so I have no way of just copying it... Tongue

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Reply #7 - Aug 10^th, 2005 at 10:14pm

Scorpiоn Offline
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You do have a disk drive, right? Perhaps you could swap out the disk drive temporarily.

What you might be able to pull off, is installing an OS on your old drive without reformatting, and using that as the master, and your new drive as the slave. Just an idea. Wink

That shoudl work, methinks.

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Reply #8 - Aug 11^th, 2005 at 12:26pm

Weather_Man Offline
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The reason for the discrepancy in drive capacity is how the space is reported. The HDD manufacturers report capacity in decimal (base 10) format. The OS reports capacity based in binary (base 2) format, converted to decimal. 1000 vs. 1024, if you will.

Quote:

"Operating System developers (Windows; Macintosh and perhaps others) use
Binary Math. We’ve seen that gross variation between binary and decimal
GigaByte reported capacities is due to the utilization of base 2 arithmetic
converted to a base 10 representation. We’ve been able to determine that decimal
123.5GB is directly equivalent to binary 115GB, using a mathematical
transformation."

This paper explains it rather well:
http://www.wiebetech.com/pressreleases/BillionEqualBillion.pdf

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Reply #9 - Aug 11^th, 2005 at 12:39pm

Weather_Man Offline
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-- What skorpion said. Wink

If you are using 2 HDDs and 2 CD drives (all four IDE channels), unhook one of the CD drives and plug in the extra HDD. Then you can copy the contents over to the new HDD. Plug the CD drive back in when finished.

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Reply #10 - Aug 13^th, 2005 at 7:08pm

GunnerMan Offline
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Also HDD are never perfect, no plater is the same so they can get close but not often do they get it right on, especially with lower end HDDs. My RAM for instance only has 1023 megs.

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