User Manual of Network Video Recorder
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7.4 Hot Spare Device Backup
Purpose:
Several devices, including NVR and HDVR, 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.
Figure 7. 38 Building Hot Spare System
7.4.1 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, click the Apply button to confirm the settings.
3. Reboot the device to make the change take effect.
Figure 7. 39 Reboot Attention
4. Click the Yes button in the pop-up attention box.