Network Video Recorder(NVR)
Quick Start Guide
3
Hard Disk
Issue V1.1 (2016-02-22)
5
3
Hard Disk
3.1 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 4 TB.
To achieve a balanced performance, more than two pieces of hard disk are
recommended.
3.2 Hard Disk Recommendation
Seagate or Western Digital hard disks which are highly stable and inexpensive are
recommended.
3.3 Video Storage Duration
Table 3-1
Video storage duration
Maximum Hard Disk
Capacity
Maximum Bit Rate
Video Storage Duration
8 × 4 TB
144 Mbps
20 days
Formulas for calculating the 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
d
indicates the bit rate (unit: Kbit/s).
