Network Video Recorder User Manual
109
7.3 Hot Spare Device Backup
Purpose:
The device can form an N+1 hot spare system. The system consists of several working devices and a hot spare
device; when the working device fails, the hot spare device switches into operation, thus increasing the reliability
of the system.
Please contact dealer for details of models which support the hot spare function.
Before you start:
At least 2 devices are online.
A bidirectional connection shown in the figure below is required to be built between the hot spare device and each
working device.
Set a hot spare
device
Add a hot spare
device on normal
device
Add the normal
device on the hot
spare device
Start Finish
Figure 7. 12 Building Hot Spare System
7.3.1 Setting Hot Spare Device
The camera connection will be disabled when the device works in the hot spare mode.
It’s highly recommended to restore the defaults of the device after switching the working mode of the hot
spare device to normal mode to ensure the normal operation afterwards.
Steps:
1. Enter the Hot Spare settings interface.
Menu > Configuration > Hot Spare
2. Set the Work Mode as Hot Spare Mode and click the Apply button to confirm the settings.
3. Reboot the device to make the change take effect.
Figure 7. 13 Reboot Attention
4. Click the Yes button in the pop-up attention box.
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