DynaColor EDNS V3000 Manuale di configurazione - Pagina 5

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RAID Disk Types (Plus Models Only)
RAID, the acronym for Redundant Array of Independent Disks, is a data storage scheme that stores
data dispersedly in multiple disks to prevent data loss. The DVR provides four different types of
RAID disks: RAID 0, RAID 1, RAID 5 and RAID 10. Refer to the description listed below, users can
choose their preferred RAID disk types.
RAID 0:
Data in RAID 0 will be separately stored in a minimum of 2 different disks. This helps to increase
writing speed. The order of how data blocks are stored is illustrated as below. RAID 0 is not fault
tolerable. Just ONE disk failure in ANY disk of the array will destroy everything in the database.
RAID 1:
RAID 1 enables the DVR to store data in 1 disk drive and make copies of the stored data to the
other installed disk drive. RAID 1 requires two disks, and it is fully fault tolerable.
RAID 0 Disk Type
A
B
F
G
K
L
P
Q
DISK 1
DISK 2
RAID 1 Disk Type
A
B
C
D
DISK 1
C
D
H
I
M
N
R
S
DISK 3
DISK 4
A
B
C
D
DISK 2
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