Clover Electronics DV1670 User Manual

Chapter 10. Record Section In-Depth

2. Calculating Storage Required

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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.