Solved

Hard Drive Space

Posted on 1998-11-20
9
156 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
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
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
Secure Your WordPress Site: 5 Essential Approaches

WordPress is the web's most popular CMS, but its dominance also makes it a target for attackers. Our eBook will show you how to:

Prevent costly exploits of core and plugin vulnerabilities
Repel automated attacks
Lock down your dashboard, secure your code, and protect your users

 
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
 
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

Get 15 Days FREE Full-Featured Trial

Benefit from a mission critical IT monitoring with Monitis Premium or get it FREE for your entry level monitoring needs.
-Over 200,000 users
-More than 300,000 websites monitored
-Used in 197 countries
-Recommended by 98% of users

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

A project that enables an administrator to perform actions within a user session context not just at the time of login but any time later on day(s) or week(s) later.
Configuring Remote Assistance for use with SCCM
This Micro Tutorial hows how you can integrate  Mac OSX to a Windows Active Directory Domain. Apple has made it easy to allow users to bind their macs to a windows domain with relative ease. The following video show how to bind OSX Mavericks to …
Finding and deleting duplicate (picture) files can be a time consuming task. My wife and I, our three kids and their families all share one dilemma: Managing our pictures. Between desktops, laptops, phones, tablets, and cameras; over the last decade…

718 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