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Appendix B
Calculate Recording Capacity
The recording capacity is mainly up to
the record resolution, record stream
and bitrate. Different image quality
parameters decide different disk
capacity occupation in equal times. The
bigger the record resolution, record
stream and record bitrate is, the more
disk capacity is taken up in equal times.
The calculation format of recording
capacity is shown as below.
Recording Capacity(MB) = Bitrate(Kbps)
÷1024 ÷ 8 × 3600 × Recording hours
per day × Record Storage Days ×
channel numbers
3600 means record for an
hour(1TB=1024GB, 1GB=1024MB,
1MB=1024KB, 1Byte=8bit).
Record Bitrate
(Kbps)
Used Space
(MB/H)
Used Space
(MB/D)
10240
4500
108000
8192
3600
86400
6144
2700
64800
4096
1800
43200
3072
1350
32400
2048
900
21600
1024
450
10800
768
337.5
8100
512
225
5400
384
168.75
4050
256
112.5
2700
The table below shows the recording
capacity requirements for record
storage in 30 days.
13 Appendix
Record
Bitrate
(Kbps)
Recording Capacity(TB)
1CH
4CH
8CH
16CH
32CH
64CH
10240
3.09
12.36
24.72
49.44
98.88
197.76
8192
2.48
9.89
19.78
39.56
79.11
158.21
6144
1.86
7.42
14.84
29.67
59.33
118.66
4096
1.24
4.95
9.89
19.78
39.56
79.11
3072
0.93
3.71
7.42
14.84
29.67
59.33
2048
0.62
2.48
4.95
9.89
19.78
39.56
1024
0.31
1.24
2.48
4.95
9.89
19.78
768
0.24
0.93
1.86
3.71
7.42
14.84
512
0.16
0.62
1.24
2.48
4.95
9.89
384
0.12
0.47
0.93
1.86
3.71
7.42
256
0.08
0.31
0.62
1.24
2.48
4.95
For instance, there is a 32CH DVR
recording 24 hours per day and the
record stores for 30 days. The DVR
adopts dual stream recording. The main
stream is 4096Kbps and the sub stream
is 1024Kbps, then the total recording
capacity is 49.45TB (39.56TB + 9.89TB).
Considering the format loss of the disk
is about 10%, the required disk capacity
will be 55TB (49.45TB ÷(1-10%)).
Summary of Contents for CS-DR8900
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