User Manual of Digital Video Recorder
131
7.4 Hot Spare Backup
This section is only applicable to the devices of HDVR series.
Before you start:
At least 2 devices are required to be online.
Purpose:
Several devices 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 is switched into operation, thus increasing the
reliability of the system.
A bidirectional connection should be built for the working device and hot spare device.
Figure 7. 30 Building Hot Spare System
7.4.1 Setting the Hot Spare Device
The camera connection will be disabled when the device works in the hot spare mode.
After switching the working mode of the hot spare device to normal mode, restore the defaults of the
device to ensure the normal operation afterwards.
Steps:
1. Enter the Hot Spare Settings interface of the hot spare device.
Menu>Configuration>Hot Spare
2. Select Hot Spare Mode as the working mode.
3. Click the button Apply and reboot the device to activate the settings.
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