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Chapter 11 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 operaon, which increases the reliability of the system.
A bidireconal connecon shown in the gure below is required to be built between hot spare
video recorder(s) and working video recorders.
Figure 11-1 Building a Hot Spare System
Note
●
Up to 32 working devices and 32 hot spare devices are allowed.
●
It is recommended to use all devices in a same model for compability. Contact your dealer for
details of models that support the hot spare funcon.
11.1 Set Working Device
Steps
1. Go to System → Hot Spare .
2. Set Work Mode as Normal Mode.
Note
Normal Mode is set by default.
Figure 11-2 Set Working Recorder
3. Click Apply.
Note
Repeat the above steps to set other working devices.
11.2 Set Hot Spare Device
Hot spare device will take over working device tasks when working device fails.
Network Video Recorder User Manual
142
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