Table of Contents
Advertisement
Appendix 1 HDD Capacity Calculation
Calculate the total capacity needed by each device according to video recording (video recording
type and video file storage time).
1.
According to Formula (1) to calculate storage capacity
In the formula:
means the bit rate, unit Kbit/s
2.
After video time requirement is confirmed, according to Formula (2) to calculate the storage
capacity
In the formula:
means the recording time for each day (hour)
means number of days for which the video shall be kept
3. According to Formula (3) to calculate total capacity (accumulation)
channels in the device during scheduled video recording
.
In the formula:
means total number of channels in one device
4. According to Formula (4) to calculate total capacity (accumulation)
channels in device during alarm video recording (including motion detection)
.
In the formula:
means alarm occurrence rate
needed for each hour, unit Mbyte.
, which is storage of each channel needed unit Mbyte.
412
User's Manual
that is the capacity of each channel
that is needed for all
that is needed for all
Advertisement
Table of Contents
