Auto Maintain; Backup - Dahua NVR21-S2 Series User Manual

4.10.7 Auto Maintain

Here you can set auto-reboot time and auto-delete old files setup. You can set to delete the files for the
specified days. See Figure 4-222.
You can select proper setup from dropdown list.
After all the setups please click save button, system goes back to the previous menu.

4.10.8 Backup

4.10.8.1 File Backup
In this interface, you can backup record file to the USB device.
a) Connect USB burner, USB device or portable HDD and etc to the device.
b) From Main menu->Backup, you can go to the Backup interface. See Figure 4-223
Figure 4-221
Figure 4-222
322