User manual

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4. Configure the remote replication schedule
For example, to enable the NVR to copy the recording data automatically to the
remote storage device at 01:15 every Monday, please do the following:
Check the box “Replication Schedule”, select “Weekly”, enter 01 Hour: 15 minute,
and select “Monday”.
5. Select the backup options
(a) Select “Replication Now”, the NVR will back up the recording data to the remote
storage device immediately.
(b) Select “Overwrite the oldest recordings when the available storage on the
remote host is less than 4GB”; the NVR will overwrite the oldest recording data
when the free space on the server is less than 4GB.
(c) Select “Perform mirroring replication by deleting extra files on the remote
replication”, the NVR will synchronize the recording data between itself and the
remote storage device and delete any extra files on the remote storage device.
 When the above options are all checked and you execute the remote replication,
the NVR will do the following:
i. The NVR checks if there are files on the remote storage device that are
different from the local source. If yes, the differentiated files will be
deleted.
ii. Next, the NVR checks the free space of remote storage device. If the free
space is larger than 4GB, the remote replication will be executed
immediately.
iii. If the free space of the remote storage device is less than 4GB, the NVR
will overwrite the recording data of the oldest day and then executes the
remote replication.