2 Hard Disk
2.1 Precautions
Formatting will clear all video data on the hard disk. Use this function only when
necessary.
Be sure to uninstall the hard disk before removing it from the NVR during runtime;
otherwise, the hard disk may be damaged or data may be lost.
The NVR must be connected to a stable power supply during runtime; otherwise,
the hard disk may be damaged or data may be lost.
The maximum capacity of a single hard disk cannot exceed 6 TB.
2.2 Hard Disk Recommendation
Seagate or Western Digital hard disks which are highly stable and inexpensive are
recommended.
2.3 Approximate Video Storage Duration
Table 2-1 Approximate Video storage duration
Formulae for calculating the approximate video storage duration:
Step 1 Use the following formula to calculate the storage capacity q (unit: MBybte) required
to record a single video per hour:
q = d/8×3600/1024
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