‘On the edge’ or ‘at the edge’ recording allows images to be stored on the IP camera with a SD card. This feature can offer several advantages:
If the server becomes overloaded with data, the SD card will store that data on your camera, preventing loss of important recordings. This option can also preserve your server during time of higher image processing.
At the edge recording will also save your images in case an incident occurs at the server: theft or deliberate damage.
This is a great feature to consider and to look for when investing in a Security System.