System information

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Appendix E Days Recording per HDD for ALIEN504
The following are based on continuous days recording for 4 channels @ 512 Kbps
Resolution Frames Per Second
80Gb 160Gb 250GB 320Gb 400Gb 500Gb 750Gb 1000Gb
4CIF 6 3.2 6.5 10.3 13.2 16.4 20.5 30.8 41.2
2CIF 12 3.2 6.5 10.3 13.2 16.4 20.5 30.8 41.2
CIF 25 3.2 6.5 10.3 13.2 16.4 20.5 30.8 41.2
DCIF 6 5.2 10.5 16.4 21.0 26.3 32.9 49.4 65.9
2CIF 6 6.5 13.2 20.5 26.3 32.9 41.2 61.7 82.4
CIF 12 6.5 13.2 20.5 26.3 32.9 41.2 61.7 82.4
CIF 6 13.2 26.4 41.2 52.7 65.9 82.4 123.5 164.8
QCIF 25 13.2 26.4 41.2 52.7 65.9 82.4 123.5 164.8
QCIF 12 26.4 52.8 82.4 105.5 131.9 164.9 247.3 329.7
Note that the above settings are only approximate times as each frame size depends on
image colour, density and complexity of change.