Digital ID View 960H Series Informações Técnicas descarregar pdf (Página 94)

Appendix 3.Hard disk capability calculation

Make sure the hard disk installed to the DVR for the first time. Pay attention to the IDE hard disk lines

connection.

1、 Hard disk capability

There is no limit for recording machine. We recommend 120G~ 250G sizes to keep better stability.

2、 Overall capability option

The hard disk capability formula is:

Overall capability（M）=channel number*time（hour）*capability in an hour（M/hour）

The recording time formula is:

Recording time（hour）=

overall capability（M）

Capability in an hour（M/hour）*channel number

The DVR introduces the H.264 compression technology. Its dynamic range is very large so the

hard disk capability calculation is based on the estimation values of each channel creating files in an

hour.

Example:

For one piece 500G HDD, real time CIF for recording, it will keep recording for about 25 days. HDD

spaces per channel are 200M/H, if 4channels real time CIF at 24hours recording uninterrupted, it can last:

500G/ (200M/H*24H*4ch) =26 days

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Digital ID View 960H Series Informações Técnicas Página 94