Dahua NVR21-4KS3 Series User Manual page 379

Step 2 Select RAID type and working mode.
The working mode determines how the system allocate resources.
● Self-Adaptive: Automatically adjust the RAID synchronization speed according to the
business status.
◇
When there is no business running, synchronization is performed at a high speed.
◇
When there is business running, synchronization is performed at a low speed.
● Sync First: Resource priority is assigned to RAID synchronization.
● Business First: Resource priority is assigned to business operations.
● Balance: Resource is evenly distributed to RAID synchronization and business
operations.
Step 3 Create RAID.
● Automatic creation.
Select disks, and then click Create RAID. The system will create RAID 5 automatically.
Automatic creation of RAID is available only when the RAID type is Raid5.
● Manual creation.
Select disks, click Create Manually and then follow the on-screen instructions to create
RAID.
Figure 5-244 RAID
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User's Manual