Appendix; Hdd Capacity Calculation - Honeywell HD-16DVR-C User Manual

Appendix

8 Appendix

HDD Capacity Calculation

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Calculate total capacity needed by each DVR according to video recording
(video recording type and video file storage time).
1. According to formula (1), calculate storage capacity
capacity of each channel needed for each hour, unit Mbyte.
  
q d 8
i i
In the formula:
2. After video time requirement is confirmed, use Formula (2) to
calculate the storage capacity
needed unit Mbyte.
m q h
= ×
i i i
In the formula:
h
means the recording time for each day (hour).
i
D
means the number of days for which the video should be kept.
i
3. According to formula (3), calculate the total capacity (accumulation)
q
that is needed for all channels in the DVR during scheduled
T
video recording.
c


q m
T i

i 1
In the formula:
4. According to formula (4), calculate the total capacity (accumulation)
q
that is needed for all channels in DVR during alarm video
T
recording (including motion detection).

3600 1024
d
means the bit rate, unit Kbit/s
i
m
, which is storage of each channel
i
D
×
i
c
means total number of channels in one DVR
q
that is the
i
(1)
(2)
(3)