The difference between the monitor level hard disk and the ordinary hard disk

In the security video surveillance project, the storage of surveillance video requires the use of a hard disk, while the ordinary hard disk does not support 7*24 hours of long-term read and write operations, and it is prone to problems after a period of use. Therefore, in the video surveillance project, it is recommended to use Monitor level hard drive. The IP-SAN, network storage and other devices used in large-scale video surveillance projects are more recommended to use enterprise-class hard disks with more stable performance. What is the difference between monitoring-class hard disks and enterprise-class hard disks and ordinary hard disks?

operating hours

The monitoring level hard disk should meet the monitoring equipment 7*24 hours video storage during the design process, while the ordinary hard disk design is 5*8 hours, which means that it is used for five days a week and eight hours a day. If an ordinary hard disk is used on a monitoring device, it takes a long time to read and write operations, which will inevitably affect the service life of the hard disk.

Instantaneous starting voltage

The instantaneous starting voltage of an ordinary hard disk is generally above 2V, or even higher, while the monitoring level hard disk is slowly started, and the voltage is controlled below 2V to prevent the hard disk from being damaged due to the excessive starting voltage.

Instantaneous starting current

The normal starting current of the ordinary hard disk is between 2.8A and 3.2A, while the control current of the monitoring hard disk is below 2A. Because the monitoring device saves the monitoring video for a long enough time, the number of hard disks installed is large, and the instantaneous starting current and voltage are small, which will greatly reduce the power consumption of the hard disk and improve the service life of the hard disk.

Operating power consumption

The operating power consumption of an ordinary hard disk is about 14 watts, while the operating power consumption of a monitoring hard disk is about 8 watts.

Heat dissipation

Since the operating power consumption of the monitoring-class hard disk is lower than that of the ordinary hard disk, and most of the running power is converted into heat, the heat of the monitoring-class hard disk is superior to that of the ordinary hard disk.

Shock resistance

Due to the complicated installation environment of the monitoring equipment, such as vehicle monitoring, the seismic requirements of the hard disk are relatively high. Therefore, the monitoring level hard disk fully considers the earthquake resistance in the design process, while the ordinary hard disk has poor seismic performance and is easily hit or beaten. damage.

reliability

Because the monitor-class hard disk is mainly used for the storage of video surveillance video, the security and reliability requirements of the monitor-level hard disk are high, and the important video files are prevented from being lost due to the damage of the hard disk. The security and reliability of ordinary hard disks are also high, but they are slightly worse than the monitor-class hard disks.