Characteristics Of Raid Levels - NEC Express5800 series User Manual

RAID Levels

Characteristics of RAID Levels

The table below lists the characteristics of the RAID levels.
Level Function
RAID0 Striping
RAID1 Mirroring
RAID5 Striping of both data
and redundant data
RAID6 Striping of both data
and redundant data
Configuring Your Storage and I/O Blade
Redundancy Characteristics
No Data read/write at the highest rate
•
Largest capacity
•
Capacity: (capacity of single HDD) ×
•
(number of HDDs)
Yes Two HDDs required
•
Capacity: capacity of single HDD
•
Yes Three or more HDDs required
•
Capacity: (capacity of single HDD) ×
•
((number of HDDs) - 1)
Yes Three or more HDDs required
•
Capacity: (capacity of single HDD) ×
•
((number of HDDs) - 2)
4-5