NEC SigmaBlade AD106a Guia do Utilizador descarregar pdf (Página 49)

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)

1 2 ... 44 45 46 47 48 49 50 51 52 53 54 ... 161 162

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NEC SigmaBlade AD106a Guia do Utilizador Página 49