Configuring Your Server 4-39
RAID Levels
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 redundant data
Yes
•
Three or more HDDs required
•
Capacity: (capacity of single HDD) ×
((number of HDDs) - 1)
RAID6
Striping of both data
and redundant 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 or more HDDs required
•
Capacity: (capacity of single HDD) ×
((number of HDDs) - 2)
Summary of Contents for Express5800/R140a-4
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Page 186: ...4 88 Configuring Your Server 3 Setting menu for VD 0 is displayed ...
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Page 260: ...6 22 Installing and Using Utilities This page is intentionally left blank ...
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Page 352: ...8 74 Troubleshooting This page is intentionally left blank ...
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Page 457: ...Installing Windows Server 2008 D 27 4 Activate Windows The Windows activation is complete ...