Dahua NVR2104-I2 User Manual

Format HDD
Select an HDD, click Format, and then follow the on-screen prompts to format the HDD.
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Formatting will erase all data in the HDD, proceed with caution.
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You can select whether to erase the HDD database. If the HDD database is erased, the AI search
data and the uploaded audio les will be deleted.
5.12.3 RAID
RAID (redundant array of independent disks) is a data storage virtualization technology that
combines multiple physical HDD components into a single logical unit for the purposes of data
redundancy, performance improvement, or both.
RAID function is available on select models.
Table 5-70 Disk quantity for dierent RAID types
RAID type Required disk quantity
RAID 0 At least 2.
RAID 1 Only 2.
RAID 5 At least 3. We recommend using 4 disks to 6 disks.
RAID 6
At least 4.
RAID 10
5.12.3.1 Creating RAID
RAID has dierent levels, such as RAID 5 and RAID 6. Each level has dierent data protection, data
availability, and performance grade. You can create dierent types of RAID as needed.
Background Information
When you create RAID, the disks in the RAID group will be formatted. Back up data in time.
You can create dierent types of RAID as needed.
Procedure
Step 1 Select Main Menu > STORAGE > RAID > RAID.
User's Manual
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Dahua NVR2104-I2 Specifications

General

Brand	Dahua
Model	NVR2104-I2
Category	Network Hardware
Language	English