Edge storage

Flexible and reliable recording solutions

Edge storage is a technology used in Axis network cameras and video encoders that enables video recording directly to an onboard SD™ card or a network-attached storage (NAS) device. Edge storage makes it possible to design flexible and reliable recording solutions, optimize bandwidth usage, and lower the cost and effort for remote site recording.

It offers an affordable remote site recording solution wherever bandwidth is limited or absent. High quality images are stored on the camera SD card, replacing the need for an onsite server.

Redundancy with fail-over recording

Edge storage offers fail-over recording, meaning that images can be temporarily stored on the SD card on board the camera in case of network failure.

When the network connection is restored and the system returns to normal operation, the central VMS can retrieve and merge local video recordings seamlessly. This ensures that the user gets uninterrupted video recordings and provides increased system reliability and safeguards system operation.

Typical applications are mission critical installations, but also for video surveillance where network coverage is limited or intermittent.

Bandwidth optimization

Edge storage allows for bandwidth optimization in applications where bandwidth is limited. The user or an operator can view live video in in low resolution, while recording HDTV quality images locally on the camera.

Upon an incident, the high quality video stream from the camera will be stored on the SD card of the camera, which is then retrieved by the central VMS for efficient forensic search.

Typical applications are when using mobile viewing apps, but also in large scale systems such as city surveillance.

How much storage do I need?

The retention time of the card depends on how the cameras are configured to record at different frame rates and resolutions, depending on motion detection, alarm events and hours of the day. As use case we provide two predefined scenarios with a 1080p HDTV camera with medium level of Zipstream provided from AXIS Site Designer for comparison:


12 hours day time operations with recording triggered by motion detection. An environment with medium motion and smaller number of people passing daily compared to the retail environment. There will be few recordings at nighttime, due to the reduced movement.


12 hours day time operations with medium motion for a retail environment. More people in motion during opening hours compared to reception. There will be few recordings at nighttime, due to the reduced movement.

  Reception Retail
25 fps 115 days 40 days
15 fps 165 days 60 days
10 fps 230 days  75 days
5 fps 430 days 135 days
  Reception Retail
25 fps 55 days 20 days
15 fps 80 days 30 days
10 fps 115 days 35 days
5 fps 215 days 70 days
  Reception Retail
25 fps 30 days 10 days
15 fps 40 days 15 days
10 fps 55 days 20 days
5 fps 105 days 35 days