Appendix B Calculate Recording Capacity
Users can calculate the size of hard disk according to the saving time and DVR recording settings. The DVR
uses fixed video bit rate. The below are the details at different settings.
The calculation format is:
Total Recording capacity =Used space per hour (MB/h) (coverage rate of hard disk) × recording time
(hour) ×channel numbers
For instance, one customer uses PAL cameras, set resolution to CIF, video quality to Lower, frame rate to 25
fps for enabling total 16 channels. He wants the unit to record continuously in a month. Below is the
calculation:
Total Recoding capacity =56.4 (mb/h) X 24(hours/day) X30(days) X16(channels)= 649728(MB)≈
650(GB)
Therefore, customers just install two SATA HDDs with 320GB, it can almost record for one month.
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