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Appendix 1
HDD Capability Calculate
1. Required HDD capacity for one channel one hour
HDD capacity
bit rate / 8 × 3600 / 1024
2.Required one channel HDD capacity
HDD capacity
required HDD capacity of one channel for one hour× daily recording
time × number of recording days.
3. Required HDD capacity for all channels timing record
HDD capacity
required one channel HDD capacity × the number of channels
4. Required HDD capacity for all channel alarm records
HDD capacity
required one channel HDD capacity × the number of channels ×Alarm
rate
