User's Manual

24
Storage Calculation
MDVR support dual streams.
Main stream is mainly used for local recording; Sub-stream is mainly used for network transmit.
Main stream:
Resolution
Image
Quality
Level
1
2
3
4
5
6
7
8
Bitrate
[
Kbps
]
1080P
8192
7168
6144
5120
4096
3072
2048
1536
720P
4096
3584
3072
2560
2048
1536
1024
800
D1
2048
1536
1230
1024
900
800
720
640
HD1
1280
960
768
640
560
500
450
400
CIF
800
600
480
400
350
312
280
250
Resolution
Image
Quality
Level
1
2
3
4
5
6
7
8
Bitrate
[
MB/hour
]
1080P
3600
3150
2700
2250
1800
1350
900
675
720P
1800
1575
1350
1125
900
675
450
351
D1
900
675
540
450
395
351
316
281
HD1
562
422
337
281
246
219
198
176
CIF
351
264
211
176
153
137
123
110
Sub stream:
Resolution
Image
Quality
Level
1
2
3
4
5
6
7
8
Bitrate
[
Kbps
]
D1
1500
1300
1100
900
800
700
600
500
HD1
1300
1200
1000
800
700
600
500
400
CIF
512
450
400
350
320
280
250
220
Resolution
Image
Quality
Level
1
2
3
4
5
6
7
8
Bitrate
[
MB/hour
]
D1
659
571
483
395
351
307
264
219
HD1
571
527
439
351
307
264
219
176
CIF
225
198
176
153
140
123
109
96
Now take the Main-stream(Sub-stream is used for uploading）table for example.
It is an approximate data for one camera in one hour, eg. 720P, if the Quality is 1 (best), from the table,
we know it will take up 1800MB /hour.
For example, suppose it has 4 cameras, and work 10 hours everyday in one month (30 days).
Total= 1800MB*4(cameras)*10(hours)* 30(days)=2160000MB ≈ 2109GB. And you need a 2TB HDD at
least.
9.2.3.3. Sub stream