Dahua DHI-NVR5432-EI User Manual page 367

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
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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.
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Business First: Resource priority is assigned to business operations.
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Balance: Resource is evenly distributed to RAID synchronization and business
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operations.
Step 3 Create RAID.
Automatic creation.
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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.
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Select disks, click Create Manually and then follow the on-screen instructions to
create RAID.
Figure 5-229 RAID
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User's Manual