Dahua DH-HCVR5424L-S2, User Manual

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HDCVI Standalone DVR User’s Manual
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Appendix G-3 RAID Capacity Calculation
RAID Name Total Space of the N disks.
RAID0 The total amount of N*HDD=HDD space *HDD amount.
RAID1 Min(capacityN)
RAID5
（
N-1
）
× min(capacityN)
RAID10
（
N/2
）
× min(capacityN)
Note
capacityN refers to the disk of mini space among all the member HDDs.
Appendix G-4 RAID Usage Suggestions

For the environment of high HDD read-write speed and no security requirements, you
can use RAID0. Please note RAID0 is the most vulnerable level and has no
redundant function. System loses all data once any HDD becomes malfunction.

For the environment of high security level and no HDD read-write speed
requirements, please use RAID1.

For the environment of high security level and HDD read-write speed at the same
time, please use RAIOD5.

Always use the HDD of the same brand in case there is high HDD read-write speed
difference. For RAID1/RAID5/RAID10, the HDD shall be of the same space and of
the same model. It is to utmost exert the HDD usage rate and performance.