HIKVISION DS-9616NI-I8 User Manual page 170

Working Status
No record
Backing up
Synchronizing
Network Video Recorder User Manual
Figure 16-4 Add Working Device
Table 16-1 Working Status Descrption
Description
The working device works properly.
If the working device goes offline, the hot spare device will record the
video of the IP camera connected to the working device for backup
The record back up functions for 1 working device at a time.
When the working device comes back online, the lost video files will be
restored by the record synchronization function.
The record synchronization function can be enabled for 1 working device
at a time.
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