Key concepts Page 12 FortiRecorder 2.4.2 Administration Guide
The above examples use the same configuration for 16 cameras with different hard drive
capacity per FortiRecorder model. The table below shows the number of days that one camera
can be stored in different configurations.
Table 3: Video retention period in days for one camera
Use the following guideline for a quick bandwidth consumption calculation:
• 1 TB HD can store 1 camera configured to consume 1Mbps for approximately 100 days.
Therefore:
• 1 TB HD can store 1 camera configured to consume 2 Mbps for approximately 50 days.
• 6 TB HD can store 10 cameras configured to consume 2 Mbps each for approximately 30
days.
For more information about bandwidth consumption calculation, see the FortiCamera
Bandwidth Calculator User Guide on
http://docs.fortinet.com/d/fortirecorder-forticamera-bandwidth-calculator-user-guide.
In practice Fortinet suggests to use the numbers provided in the bandwidth calculator as a
starting point and then adjust them after installation to achieve the desired balance between
quality and bandwidth.
Client Performance
If you need to display 8 or more camera live views, you may need to configure the second
camera stream so that viewing is done at a lower frame rate or resolution, depending on how
powerful the client PC is. RAM is less important than CPU for rendering video.
Video playback is very CPU intensive. If you are experiencing choppy video playback and
cameras “freezing” during playback, you likely have a client performance problem. Use the
diagnostic tools available on your client OS and look at the CPU usage when you are
experiencing video problems. If possible, keep the CPU usage below 50%.
FortiRecorder
100D with 1 TB
HD
FortiRecorder
200D with 3 TB
HD
FortiRecorder
200D with 3 TB
HD plus 16 TB
remote
storage
FortiRicorder
400D with 6
TB HD
The same resolution and frame rate with different video quality
1920x1080@15 FPS
high quality video = 3
Mbps
34 102 645 204
1920x1080@15 FPS
medium quality video
= 2.1 Mbps
49 145 921 291
The same resolution and video quality with different frame rate
2048x1536@10 FPS
high quality video = 3
Mbps
34 102 645 204
2048x1536@30 FPS
high quality video = 5
Mbps
20 61 387 122
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