Canon VB-M700F - Manual (Page 24)

24
Determining the Capacity of the Storage Server
You must determine the configuration of your Storage Server based on the recording and playback data volume per second
and the required hard disk capacity.
„ Hard disk capacity requirements
It is assumed that you use continuous recording at a fixed frame rate (number of video per second), video size and quality.
The size of the recording data varies depending on the camera configuration (video quality and video size settings). The
size of the recording data varies depending on the camera configuration (video quality and video size settings). Also, the
video data size used for calculating the recording data size may vary from the actual video.
Follow these steps to determine the required hard disk capacity.
The higher the video quality setting, the higher the video quality and resulting data volume.
For general security purposes, you can use 1 to 2 fps. Higher frame rates require more hard disk space.
We recommend that you add more than 20% space to the calculated hard disk capacity.
Sample calculations for each video format are shown below, assuming 1000 Kbps = 1 Mbps for the network bandwidth,
and 1024 KB = 1 MB for the disk capacity.
Example 1: JPEG recording
• Video recording from 16 cameras (VB-S30D)
• Video size is 320 x 240 and video quality is 3 (data size per frame: 9.16 KB)
• Recording frame rate is 2 fps
• Data size per second is approximately 18.32 KB (= 9.16 KB x 2 fps)
Although the actual recording data size depends on the objects recorded by each camera, this calculation assumes the
typical sizes given above.
• Audio is recorded from 2 cameras
If JPEG videos from 16 cameras are recorded at 2 frames per second in continuous recording mode, the required hard disk
space is approximately 24.2 GB per day (= 18.32 KB x 16 cameras x 60 seconds x 60 minutes x 24 hours = 25,325,568 KB).
If audio data is recorded using 2 cameras, the required hard disk space is approximately 1.3 GB per day (= 8 KB x
2 cameras x 60 seconds x 60 minutes x 24 hours = 1,382,400 KB).
System Design
Important
The operating performance of this software varies depending on factors such as the usage conditions and the hardware specifications of
the Storage Server. Perform system design after referring to “For High-reliability/H.264 Video Format Systems” (p. 14).
1 Decide on the number of cameras and the video size for recording.
2 Decide on the video quality for each camera.
3 Decide on the frame rate required for recording.
4 Decide on the number of hours per day to record and the number of days to store the recorded data.
5 After deciding on the above parameters, calculate the required hard disk capacity based on the recording data size (in
KB).
6 If you will also record audio, be sure to calculate the additional amount of hard disk space required for the audio.