User Manual of Network Video Recorder
205
13.2 Rebuilding Array
Purpose:
The working status of array includes Functional, Degraded 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 will change to Functional; when the number of
lost disks has exceeded the limit, the working status of array will change to Offline; in other conditions, the
working status is Degraded.
When the virtual disk is in Degraded status, you can restore it to Functional by array rebuilding.
Before you start:
Please make sure the hot spare disk is configured.
1. Enter the Physical Disk Settings interface to configure the hot spare disk.
Figure 13. 11 Physical Disk Settings Interface
2. Select a disk and click to set it as the hot spare disk.
Only global hot spare mode is supported.
13.2.1 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.
Steps:
1. Enter the Array Settings interface. The status of the array is Degraded. Since the hot spare disk is configured,
the system will automatically start rebuilding using it.
Menu > HDD > RAID > Array
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