CompanyLogo
Search Advanced Search
Categories
General Questions (55)
Studio Series (23)
Evolution Series (28)
G-DRIVE Family (42)
G-RAID Family (52)
G-SPEED/G-SAFE Family (53)
G-CONNECT (53)
G-MINI (16)
G-SATA (15)
Search
Advanced Search
FAQs
Search our FAQ to find resolutions to common issues.
My computer says my drive is less capacity than advertised
Here is an approximate breakdown of what you will see on your computer for it's respective selling size.

 Decimal
Size You Bought
 = Binary
Available Space
On Your
Computer
 100GB   93.1GB
320GB   297.95GB
500GB   465.55GB
640GB   595.90GB
750GB   698.32GB
1TB   931.10GB
1.5TB   1396.65GB

 
Hard drive manufacturers use a calculating method different than how computers calculate figures, so there will be nominal differences. This is how hard drive manufacturers have been selling drives since day one. We agree that showing accurate amount makes sense. Though selling 111.68GB hard disk probably isn't as easy to understand as 120GB.
 
 
The Technical Explanation:
 
Decimal vs.. Binary:
For simplicity and consistency, hard drive manufacturers define a megabyte as 1,000,000 bytes and a gigabyte as 1,000,000,000 bytes. This is a decimal (base 10) measurement and is the industry standard. However, certain systems define a megabyte as 1,048,576 bytes and a gigabyte as 1,073,741,824 bytes. These are binary (base 2) measurements.

This is why different utilities will report different capacities for the same drive. The number of bytes is the same, but a different number of bytes is used to make a megabyte and a gigabyte. This is similar to the difference between 0 degrees Celsius and 32 degrees Fahrenheit. It is the same temperature, but will be reported differently depending on the scale you are using.

 


Print  Email  Save  Notify Me  Delete from Favorites 
Article ID: 25 Article Created: 08-06-2009 21:50 PMLast Modified: 07-31-2013 11:47 AM

How well did this article answer your question? 100% 75% 50% 25% 0%

Most Recently Viewed Articles
How to format/reformat your drive for Mac (HFS+)
 Follow these steps to format your drive for use on the Mac:...
What is the difference between the G-DRIVE and G-RAID?
   ...
External Drive Troubleshooting - Mac
Basic steps for troubleshooting your G-Technology external drive on the Mac...
I installed Windows XP Service Pack 2 (SP2) on my PC and now my G-RAID (Legacy) is running slowly. What can I do to regain performance?
 ...
What is the proper way to disconnect/unmount my G-Technology drive from my computer?
UNMOUNTING/DISCONNECTING G-Technology drives  A nice feature of many G-Technology drives is the ability to be connected and disconnected while your computer is running. ...
My G-RAID 2 Power Supply is making noise
My power supply is hissing or the power light is blinking....
About the Web Application File Browser
 The following functionality is available in the File Browser for the Web Application, to view and manage content....
What happens when I pull the Thunderbolt cable out of the host or the G-RAID Studio while the host is still powered on?
  ...
My G-RAID (Legacy) randomly un-mounts from my system
  MAC OS X Symptoms You may get the error “Device Removal – The device you removed was not properly put away...” or the “Spinning Beach Ball.” Windows XP Symptoms The drive is no longer visible in Explorer or you may get the “Spinning Hour Glass” when accessing the drive. This condition affected some G-RAID units manufactured around Aug 2006.  ...
About the Web Application Media Browser
The following functionality is available in the File Browser of the Web Application, to view and manage content....