G-Technology g-speed fc Manual De Usuario

 

  

G-SPEED Product Guide 

Page 17 

 
APPENDIX A 

0 

Disk striping  Offers the highest 

performance and 
useable storage 
capacity 

No fault tolerance - 
failure of one drive 
in the array results 
in complete data 
loss 
 

Content creation 
applications  

1 

Mirroring 

High level of fault 
tolerance  

Not the most 
efficient in regards 
to capacity as 
useable storage 
space is cut in half 
 

Applications in 
which data 
security is 
paramount 

3 Disk 

striping 

with 
dedicated 
parity drive 

High level of 
read/write 
performance, fault-
tolerant, disk 
failure has 
insignificant impact 
on performance 
 

 Content 

creation 

applications 
requiring high-
performance and 
data security 

5 Disk 

striping 

with 
distributed 
parity  

High read 
performance, 
medium write 
performance, fault-
tolerant 
 

Disk failure results 
in drop in 
performance 

File servers, 
database 
applications 

6 Disk 

striping 

with dual-
distributed 
parity  

An extension of 
RAID 5 with a 
second 
independent 
distributed parity 
scheme. High level 
of fault tolerance. 
Two drives in the 
array can fail 
without data loss.  

Lower performance 
than RAID 3 or 
RAID 5 

Mission critical 
data 

JBOD Just-a-

bunch-of-
disks 

Each drive can be 
accessed as an 
individual volume.   

No fault tolerance 

Audio 
applications