3. Storage Matrix
The HDD Capacities and Recording lengths are determined by capacity of the installed HDDs and the selected image level.
The following storage time is based on the average use for HDD space for single channel recording.
Coding
Image level
Resolution
Frames
Maximum data flux
Average HDD space/hour
CBR
1
2
30 | 128Kb/S | 40MB | |
30 | 256Kb/S | 80MB | |
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| 3 |
| 30 | 384Kb/S | 120MB |
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| 4 |
| 30 | 512Kb/S | 160MB |
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| 5 |
| 30 | 768Kb/S | 240MB |
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| 6 |
| 30 | 1Mb/S | 320MB |
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Note: Adjustable frame rates, from 1fs to 30f/s can be selected. User can choose based on own needs. Using other than 30f/s (Real time), HDD (Hard Disk) space can be greatly increased.
Following are storage calculation guidelines (in the number of Days):
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| Quality | 30F/S | |||
80G | 1(128kb/s) | 128kb/s | 61 | 15* | 8 |
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| 2(256kb/s) | 256kb/s | 30 | 8 | 4 |
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MP4(CBR) | 3(384kb/s) | 384kb/s | 20 | 5 | 3 |
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| 4(512kb/s) | 512kb/s | 15 | 4 | 2 |
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| 5(768kb/s) | 768kb/s | 10 | 3 | 1 |
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| 6(1024kb/s) | 1024kb/s | 8 | 2 | 1 |
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*This reads that with a 80G harddisk, at CBR (constant bit rate) and Image Quality 1, DVR will be able to record 15 days for 4 camera inputs.
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