Chapter 18 Hot Spare Device Backup; Set Working Device; Set Hot Spare Device - HIKVISION DS-7600NI-I2 Series User Manual

Chapter 18 Hot Spare Device Backup

Video recorders can form an N+M hot spare system. The system consists of several working video
recorders and at least one hot spare video recorder. When a working video recorder fails, the hot
spare video recorder would switch into operation, which increases the reliability of the system. A
bidirectional connection shown in the figure below is required to be built between hot spare video
recorder(s) and working video recorders.
Note
Up to 32 working devices and 32 hot spare devices are allowed.
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It is recommended to use all devices in a same model for compatibility. Contact your dealer for
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details of models that support the hot spare function.
Only certain models support this function.
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18.1 Set Working Device

Steps
1. Go to System → System Management → N+M Hot Spare .
2. Set Working Mode as Normal Mode.
3. Turn on Enable.
4. Click Save.
5. Optional: View Hot Spare Device IP Address and Hot Spare Device Working Status.

18.2 Set Hot Spare Device

Hot spare device will take over working device tasks when working device fails.
Steps
1. Go to System → System Management → N+M Hot Spare .
2. Set Working Mode as Hot Spare Mode.
3. Click Save. Your device will restart automatically.
Note
The camera connection will be disabled when the device works in hot spare mode.
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It is highly recommended to restore the device defaults after switching the work mode of hot
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spare devices to normal mode to ensure the normal operation afterwards.
Network Video Recorder User Manual
Figure 18-1 Build a Hot Spare System
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