Hardware
324
RAID Level
This section describes particulery the characteristics of the RAID levels suppurted by Internal
RAID Controller .
Characteristics of RAID Levels
The table below lists the characteristics of the RAID levels.
Level
Function
Redundancy
Characteristics
RAID0
Striping
No
· Data read/write at the highest rate
· Largest capacity
· Capacity: (capacity of single HDD) ×
(number of HDDs)
RAID1
Mirroring
Yes
· Two HDDs required
· Capacity: capacity of single HDD
RAID5
Striping of both data
and redundsant data
Yes
· Three HDDs required
· Capacity: (capacity of single HDD) ×
((number of HDDs)-1)
RAID6
Striping of both data
and redundsant data
Yes
· Three or more HDDs required
· Capacity: (capacity of single HDD) ×
((number of HDDs) / 2)
RAID10
Spanning of RAID1
Yes
· Four or more HDDs required
· Capacity: (capacity of single HDD) ×
((number of HDDs) / 2)
RAID50
Spanning of RAID5
Yes
· Six HDDs required
· Capacity: (capacity of single HDD) ×
((number of HDDs) - 2)
Summary of Contents for Express 5800
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