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One
of the most overlooked upgrades
when purchasing a digital video recorder (DVR) is the size of the hard drive.
Fortunately,
our DVR Storage Calculator will help you determine what HD size is right for your
specific
situation.
Other factors may influence the DVR's hard drive storage capacity
such as HD compression, this will also influence
the number of days your DVR will store video.
Try several scenarios that best
fit your particular situation.
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1.Maxamum number
of days needed to store video on
DVR's HD.
2.Total
number of cameras connected to your DVR.
3.Divide
recording
(FPS) of your DVR by the number of cameras connected to your system.*
4.Total
number of hours each workday DVR is recording.**
5.Total
number of days system will be active in a typical work week.**
Answer; Minimum amount of storage
needed. |
FPS = Frames Per Second - DVR = Digital Video Recorder -
HD = Hard Drive
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*If your DVR recording FPS is
160,
and, you have 16 cameras connected to
your DVR, then
divide 160
÷ 16
= 10. Ten is
the response to "FPS for one camera" |
**If DVR is
set to record on motion, do not include days and/or hours when the
recording area is clear of people / traffic |
Bytes are measured through the
power of twos.
Therefore, one gigabyte is two to the 30th power in bytes, equaling
1,073,741,824 bytes, or 1,048,576 kilobytes or 1,024 megabytes.
One half of 1,024
megabytes is 512, therefore, 512 megabytes is equal to one half of a gigabyte
and half of a terabyte is 512 gigabytes .
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