NEC SigmaBlade AD106a Guida Utente Pagina 49

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Configuring Your Storage and I/O Blade 4-5
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)
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