Filter
Top Products
Chapter 10. Record Section In-Depth
2. Calculating Storage Required
Page 94
2. Calculating Storage Required
As you have had an opportunity to review compression, resolution, quality, and speed of video, all these
factors are needed to intelligently calculate proper storage amount needed for each DVR unit or best
configure each video. Here is a simple mathematical formula for your convenience.
HDD Size Per Day by each Camera = number of frames per second X number of seconds in a day (1Day =
60X60X24) X size of image in bytes (see Table 2 Data size - Image Quality by Resolution on page 92).
With above formula here are some reference figures
Resolution
1 camera @
Lowest @
30fps @
1 hour
1 camera @
Low @
30fps @
1 hour
1 camera @
Normal@
30fps @
1 hour
1 camera @
High@
30fps @
1 hour
1 camera @
Highest@
30fps @
1 hour
360X240
119 MB
153 MB
181 MB
243 MB
299 MB
720X240
211 MB
285 MB
355 MB
433 MB
492 MB
720X480
485 MB
581 MB
702 MB
939 MB
1176 MB
Table 3 30fps by one camera each hour
Resolution
4 camera @
Lowest @
30fps @
500 GB HDD
4 camera @
Low @
30fps @
500 GB HDD
4 camera @
Normal@
30fps @
500 GB HDD
4 camera @
High@
30fps @
500 GB HDD
4 camera @
Highest@
30fps @
500 GB HDD
360X240
45 days 3 hrs
34 days 21 hrs
29 days 13 hrs
21 days 23 hrs
17 days 20 hrs
720X240
25 days 6 hrs
18 days 17 hrs
15 days 1 hrs
12 days 8 hrs
10 days 20 hrs
720X480
11 days 15 hrs
9 days 4 hrs
7 days 14 hrs
5 days 16 hrs
4 days 12 hrs
Table 4 4ch DVR 500GB by each resolution
Resolution
9 camera @
Lowest @
500 GB HDD
9 camera @
Low @
500 GB HDD
9 camera @
Normal@
500 GB HDD
9 camera @
High@
500 GB HDD
9 camera @
Highest@
500 GB HDD
360X240 @ 30fps
20 days 1 hrs
15 days 11 hrs
13 days 3 hrs
9 days 18 hrs
7 days 22 hrs
720X240 @ 15 fps
22 days 6 hrs
16 days 15 hrs
13 days 9 hrs
10 days 23 hrs
9 days 15 hrs
720X480 @ 10 fps
15 days 12 hrs
12 days 6 hrs
10 days 3 hrs
7 days 13 hrs
6 days 1 hrs
Table 5 9ch DVR 500GB by Resolution with max possible frame rate
Resolution
16 camera @
Lowest @
500 GB HDD
16 camera @
Low @
500 GB HDD
16 camera @
Normal@
500 GB HDD
16 camera @
High@
500 GB HDD
16 camera @
Highest@
500 GB HDD
360X240 @ 30fps
11 days 6 hrs
8 days 17 hrs
7 days 9 hrs
5 days 11 hrs
4 days 11 hrs
720X240 @ 15 fps
12 days 15 hrs
9 days 8 hrs
7 days 14 hrs
6 days 4 hrs
5 days 10 hrs
720X480 @ 7.5 fps
11 days 15 hrs
9 days 4 hrs
7 days 12 hrs
5 days 16 hrs
4 days 12 hrs
Table 6 16ch DVR 500GB by Resolution with max possible frame rate
These tables represent relative calculation at continuous recording configuration.