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Network Video Recorder User Manual
142
Chapter 15 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.
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 15-1 Building Hot Spare System
Before you start:
At least 2 devices are online.
15.1 Set Hot Spare Device
Purpose:
Hot spare devices takes over working device tasks when working device fails.
Step 1 Go to System > Hot Spare.
Step 2 Set the Work Mode as Hot Spare Mode.
Figure 15-2 Hot Spare
Step 3 Click Apply.
Step 4 Click Yes in popup attention box to reboot the device.
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