IC Realtime NVR-604V Product Manual - Page 148
Appendix A HDD Capacity Calculation
View all IC Realtime NVR-604V manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 148 highlights
10 Appendix A HDD Capacity Calculation Calculate total capacity needed by each device according to video recording (video recording type and video file storage time). Step 1: According to Formula (1) to calculate storage capacity qi that is the capacity of each channel needed for each hour, unit Mbyte. qi = di ÷ 8 × 3600 ÷1024 (1) In the formula: di means the bit rate, unit Kbit/s Step 2: After video time requirement is confirmed, according to Formula (2) to calculate the storage capacity mi , which is storage of each channel needed unit Mbyte. mi = qi × hi × Di (2) In the formula: hi means the recording time for each day (hour) Di means number of days for which the video shall be kept Step 3: According to Formula (3) to calculate total capacity (accumulation) qT that is needed for all channels in the device during scheduled video recording. c ∑ qT = mi (3) i =1 In the formula: c means total number of channels in one device Step 4: According to Formula (4) to calculate total capacity (accumulation) qT that is needed for all channels in device during alarm video recording (including motion detection). c ∑ qT = mi ×a% (4) i =1 In the formula:a% means alarm occurrence rate 139