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User Manual of Network Video Recorder
10.2 Rebuilding Array
Purpose:
The working status of array includes Functional, Disk Loss and Offline. By viewing the array status, you can take
immediate and proper maintenance for the disks so as to ensure the high security and reliability of the data stored
in the disk array.
When there is no disk loss in the array, the working status of array remains Functional; when the number of lost
disks has exceeded the limit, the working status of array changes to Offline; in other conditions, the working status
is Disk Loss.
When the virtual disk is in Degraded status, you can restore it to Functional by array rebuilding.
10.2.1 Automatically Rebuilding Array
Purpose:
When the virtual disk is in Degraded status, the device can start rebuilding the array automatically with the hot
spare disk to ensure the high security and reliability of the data.
Before you start:
Since the Auto-rebuild function is enabled by default, the hot spare disk must be configured.
Steps:
1.
Enter the Array Settings interface. The status of the array is Disk Loss. Since the hot spare disk is configured
and Auto-rebuild function is enabled. The hot spare disk will be automatically used for array rebuilding.
Menu > HDD > RAID > Array
Figure 10. 15 Array Settings Interface
2.
Enter the Virtual Disk interface to view the rebuilding status of the virtual disk.
Menu>HDD>RAID>Virtual Disk
Figure 10. 16 Virtual Disk Settings Interface
If there is no hot spare disk after rebuilding, it is recommended to install a HDD into the device and set is as
a hot spare disk to ensure the high security and reliability of the array. For detailed operation guide, please
refer to steps 12-15 of Chapter 10.1.2
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