G-Technology 0G02057 Manual De Usuario

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JURISDICTION TO JURISDICTION.
G-Technology, a 
division of Hitachi 
Global Storage 
Technologies
Tel:  (310) 449-4599 
Fax: (310) 449-4670 
support@g-technology.com 
G-Technology by Hitachi Global Storage Technologies © 2010. All 
rights reserved. G-DRIVE, G-RAID, G-SAFE, and G-SPEED are 
registered trademarks of G-Technology by Hitachi GST. Apple, Mac, 
Macbook, Macbook Pro and the Mac logo are trademarks of Apple, 
Inc. Hitachi Global Storage Technologies and Hitachi Inspire the 
Next are trademarks of Hitachi Ltd. G-Technology is a trademark of 
Hitachi Global Storage Technologies. All other trademarks are the 
property of their respective owners. Hitachi Global Storage 
Technologies trademarks are authorized for use in countries and 
jurisdictions in which Hitachi has the right to use, market and 
advertise the brands. The Travelstar trademark is authorized for use 
in the Americas, EMEA and the following Asia-Pacific countries and 
jurisdictions: Australia, Hong Kong, Japan, New Zealand, South
Korea and Taiwan. Contact Hitachi for further information. Hitachi 
shall not be liable to third parties for unauthorized use of Hitachi 
trademarks.
One gigabyte (GB) is equal to one billion bytes and one terabyte 
(TB) equals 1,000 GB (one trillion bytes). Accessible capacity will 
vary from the stated capacity due to formatting and partitioning of 
the hard drive, the computer’s operating system, and other factors” 
For G-Technology by Hitachi products less than 1TB: “One gigabyte 
(GB) is equal to one billion bytes when referring to hard drive 
capacity. Accessible capacity will vary depending on the operating 
environment and formatting.
Appendix A: RAID Levels Explained
The following chart will help you understand the difference 
between different RAID levels available for G-SPEED Q.
RAID 
Level
Description
Advantage
Disadvantage
Ideal For
0
Disk striping
Offers the 
highest 
performance 
and a useable 
storage 
capacity of 
100% of total 
available 
storage 
capacity
No fault 
tolerance - failure 
of one drive in 
the array results 
in complete data 
loss
Content 
creation 
applications 
requiring 
highest 
storage 
capacity and 
best 
performance.
5
Disk striping 
with
distributed 
parity
High read 
performance, 
medium write 
performance 
with data 
protection in 
case of a drive 
failure.
Useable storage 
capacity equals 
total capacity of 
all drives in the 
array less the 
capacity of one 
drive.
For example, a 4x 
1TB RAID 5 yields 
a useable 
capacity of 3 TB.
Disk failure 
results in drop in 
performance
Content 
creation 
applications 
requiring 
data 
protection
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