Solved

Hard Drive Space

Posted on 1998-11-20
9
151 Views
Last Modified: 2013-12-28
I have a harddrive that is 14.4Gb in size.  When I click the C drive icon in my computer, it shows the harddrive is 13.4 in size.  What happened to the other 1.0Gb?
0
Comment
Question by:cbrookhart
9 Comments
 

Expert Comment

by:demarb
ID: 1647816
Anytime you install a hard drive it will never register as the size reported by a manufacturer.  A 4.3 Gb drive shows as 4.09 Gb.  It is the same with all hard drives.  A certain percentage of the drive space is required for the FAT and cannot be used, therefore it won't show up as available drive space.
0
 
LVL 7

Expert Comment

by:cmcgee
ID: 1647817
Windows Defines a Meg as 1,048,576
Hard Drive manufacturers define a Meg as 1,000,000

as the Drives get larger, you will notice the missing space accordingly.

Craig
0
 
LVL 3

Expert Comment

by:rosefire
ID: 1647818
When you format a hard drive some space is used for that FAT tables and format information. The true size of the disk should be reflected in FDISK.  After formatting the storage space remaining will be reported. FDISK uses 1 MEG = 1,048,576 bytes.
0
 
LVL 12

Expert Comment

by:Otta
ID: 1647819
> A certain percentage of the drive space is required for
> the FAT and cannot be used, therefore it won't show up
> as available drive space.

Nope.  CMCGEE has the correct answer:

Calc;    14.4*(1000**3)/(1024**3)  
Result = 13.411





0
Why spend so long doing email signature updates?

Do you spend loads of your time carrying out email signature updates? Not very interesting are they? Don’t let signature updates get you down. Let Exclaimer Cloud - Signatures for Office 365 make managing email signatures a breeze.

 
LVL 3

Expert Comment

by:rosefire
ID: 1647820
That doesn't explain why the original poster says...

" A 4.3 Gb drive shows as 4.09 Gb."

1000/1024 * 4.3 Gig  = 4.2 Gig  The original poster is still missing 1 Gig.

Sorry, CNCGEE's answer doesn't add up.
0
 
LVL 3

Expert Comment

by:rosefire
ID: 1647821
Sorry, he is still missing 1/10 = .1 gig.  (Dropped the ".").
0
 
LVL 3

Expert Comment

by:rosefire
ID: 1647822
Actually, I am picking on demarb's numbers, not the original poster.  I think we may all be talking about different things.  Some of us assume that the space available is being reported by DOS as available or used.  Remember, a 1.44 MB floppy is 2.0 MB raw before it is formatted.  Cbroolhart is apparently looking at something different than the rest.  CNCGEE's answer does add up for Cbrookhart's ratios.
0
 
LVL 12

Expert Comment

by:Otta
ID: 1647823
DEMARB writes:

> A 4.3 Gb drive shows as 4.09 Gb

calc 4.3*(1000**3)/(1024**3)
Result = 4.004

ROSEFIRE writes about a FOUR-gig disk:

> 1000/1024 * 4.3 Gig  = 4.2 Gig  

Try (1000*1000*1000)/(1024*1024*1024) * 4.3 Gig

> The original poster is still missing 1 Gig.

CBROOKHART wrote about a FOURTEEN-gig disk:

>  14.4Gb in size.  ... 13.4

ROSEFIRE wrote:

>  Sorry, CNCGEE's answer doesn't add up.

However, 'CMCGEE' has the correct answer.





0
 

Accepted Solution

by:
Noteran earned 20 total points
ID: 1647824
I completely agree with the above comments, it is true that harddrive manufacturers like to put let's say 9GB on their label, but they take 1GB as 1000MB wich is wrong. The FAT also eats a lot of drivespace; If u still want a bigger HD you can do the following: Since you have a very big HD the clusters are very big - So if you don't mind i would use FIPS.EXE ( from LINUX ) to create another partitions, thereby making the clusters smaller and the files will take lesser space ( EXAMPLE: if you create a file of 0bytes it will take at least 4kb !!! because it uses an entire cluster !!!)

I would be honored to give more detailed info, just ask - My telephone bill is getting a bit big, so have a nice day !
0

Featured Post

Do email signature updates give you a headache?

Constantly trying to correctly format email signatures? Spending all of your time at every user’s desk to make updates? Want high-quality HTML signatures on all devices, including on mobiles and Macs? Then, let Exclaimer solve all your email signature problems today!

Join & Write a Comment

Several part series to implement Internet Explorer 11 Enterprise Mode
NTFS file system has been developed by Microsoft that is widely used by Windows NT operating system and its advanced versions. It is the mostly used over FAT file system as it provides superior features like reliability, security, storage, efficienc…
This video Micro Tutorial explains how to clone a hard drive using a commercial software product for Windows systems called Casper from Future Systems Solutions (FSS). Cloning makes an exact, complete copy of one hard disk drive (HDD) onto another d…
In this video, we discuss why the need for additional vertical screen space has become more important in recent years, namely, due to the transition in the marketplace of 4x3 computer screens to 16x9 and 16x10 screens (so-called widescreen format). …

744 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

11 Experts available now in Live!

Get 1:1 Help Now