Digiever DIGIARRAY DA-4000E Manual de instalação rápida - Página 9
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Imprimir páginaIII. RAID Introduction
The introduction of disk configuration is in the below table.
Linear
Linear is a collection of hard disk drives and does not provide any
(JBOD)
RAID protection. The data are written to the disks continuously.
RAID 0
RAID0 is one larger volume with 2 or more hard disk drives. The
data are written to the hard disk drives without any parity
information. The total storage capacity is the sum of all hard disk
drives.
RAID 1
2 hard disk drives are required to create a RAID1 array. RAID1 can
provide disk mirroring by duplicating the data between two hard
disk drives.
RAID 5
A minimum of 3 hard disk drives are required to create RAID5. The
data are striped in all hard drives in a RAID5 array and the parity
information is stored in each drive. If a hard disk drive fails, the
array enters degraded mode. The data can be rebuilt from other
member drives after installing a new drive to replace the failed
one.
RAID 10
Data are written in stripes across primary disks that have been
mirrored to the secondary disks. A typical RAID 10 configuration
consists of four drives, two for striping and two for mirroring
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