DETEXI® Network Video Management System
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— DETEXI IP-Surveillance Planning – Calculate Your Storage Needs — Storage —
The emergence of network video systems calls for increased use of hard disk storage. This gives rise to a number of questions, ranging from how much hard disk is needed to how to build fail-safe hard disk storage.

Required hard disk space
The DETEXI NVR has many capabilities, executed by several different services run on the Windows PC Server. Different applications require different functions of the DETEXI NVR to be utilized — it is not possible to define a single set of hardware recommendations for all applications of the software.
Since the recording requires the most processing resources the recording storage needs must be considered when building the computer system to be used as the NVR Server.
It is common for different cameras to require different quality recordings.
It is more common to sacrifice recording frame rate to preserve the highest possible video resolution in recordings. This allows for crisper images of faces, license plates, etc. even when the fluidity of the video is not perfect.
A typical recording quality of IP video is 4CIF (704x480) resolution or similar and between 3-6 FPS. Megapixel cameras are starting to become more common now as well, supporting maximum resolutions in the range of 1600x1200.
Factors to consider when calculating storage needs
  • Number of cameras;
  • Hours per day the camera will be recording;
  • How long the data must be stored;
  • Motion detection (Event) only or constant recording;
  • Other parameters such as frame rate, compression, image quality and complexity.

— DETEXI IP-Surveillance Planning — Simulation-based Storage Calculator —
DETEXI IP-Surveillance Planning
Simulation-based Storage Calculator
Use the following calculator to estimate the storage needs of your DETEXI NVR recording requirements.
Retention Time   Days
Cameras Resolution Frame Rate FPS Compression % Recording % Storage GB
Total Storage GB  
  • Calculations are based on the performance and resource consumption of AXIS cameras/video servers.
  • Calculator do not take into consideration any overhead or other technical issue that may result in a higher file size.
  • Calculator do not consider storage space for the Operating System or Video Management Software.
  • Use for estimation purposes only.