5 Appendix A HDD Capacity Calculation
Calculate total capacity needed by each device according to video recording (video recording type and
video file storage time).
Step 1: According to Formula (1) to calculate storage capacity
i
q
that is the capacity of each channel
needed for each hour, unit Mbyte.
1024
3600
8
i
i
d
q
(1)
In the formula:
i
d
means the bit rate, unit Kbit/s
Step 2: After video time requirement is confirmed, according to Formula (2) to calculate the storage
capacity
i
m
, which is storage of each channel needed unit Mbyte.
i
m
=
i
q
×
i
h
×
i
D
(2)
In the formula:
i
h
means the recording time for each day (hour)
i
D
means number of days for which the video shall be kept
Step 3: According to Formula (3) to calculate total capacity (accumulation)
T
q
that is needed for all
channels in the device during
scheduled video recording
.
c
i
i
T
m
q
1
(3)
In the formula:
c
means total number of channels in one device
Step 4: According to Formula (4) to calculate total capacity (accumulation)
T
q
that is needed for all
channels in device during
alarm video recording (including motion detection)
.
c
i
i
T
m
q
1
×
a%
(4)
In the formula
：
a%
means alarm occurrence rate
Summary of Contents for ELITE Network IP Series
Page 1: ...64 Channel 4K Hot Swap NVR NVR ELHS 64 4K DH...
Page 108: ...Figure 3 92 Figure 3 93...
Page 131: ...Figure 3 111 Figure 3 112 Figure 3 113...
Page 144: ...Figure 3 126 Figure 3 127...
Page 146: ...Figure 3 129 Click draw button to draw the zone See Figure 3 130 Figure 3 130...
Page 149: ...Figure 3 133 Click Draw button to draw a zone See Figure 3 134 Figure 3 134...
Page 154: ...Figure 3 139 Click draw button to draw the zone See Figure 3 140...
Page 172: ...Figure 3 157 Figure 3 158...
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Page 176: ...Figure 3 164 Figure 3 165...
Page 211: ...Figure 3 199...
Page 234: ...Figure 3 227 Step 2 Click Add group Enter add group interface See Figure 3 228 Figure 3 228...
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Page 359: ...Figure 4 144 Note For admin you can change the email information See Figure 4 145...
