Today I would like to introduce to you what is the difference between the blue disk, green disk, black disk and red disk in the computer hard disk?
The blue disks, black disks, red disks, and green disks we usually refer to usually refer to the hard disks produced by Western Digital, and the above classifications are carried out based on their respective characteristics. From the appearance, we can distinguish them by the color of the paper pasted on the hard disk.
Green disk: monitoring disk, 5400 rpm, now the definition has been changed to data disk, for storage. The advantages are lower heat generation, quieter and more environmentally friendly. Energy-saving disk, suitable for large-capacity storage; Disadvantages: poor performance, short life, high latency.
Blue disk: desktop hard drive, 7200 rpm, suitable for home use. The advantages are strong performance, low price, and high cost performance; the disadvantage is that the sound is slightly louder than the green disk, and the performance is slightly worse than the black disk.
Black disk: high performance, large cache, fast speed. CODE NAME: LS WD Caviar Black. It is mainly suitable for enterprises, high-throughput servers, high-performance computing applications, such as multimedia video and photo editing, and high-performance game consoles.
Red disk: storage disk, automatically adjust the speed from 5400 to 7200 rpm, suitable for operation in NAS environment, 24 hours a day, 7 days a week.
Purple disk: new product, the vest of the green disk AV-GP, which replaces the position of the green disk, and is now defined as a surveillance hard disk, 5400~7200 RPM automatic adjustment supports streaming regardless of CRC check, suitable for video surveillance storage, 24*7 design.
Through the introduction of Western Digital mechanical hard drives above, we can see that green disks and blue disks are suitable for home computers. Generally speaking, the speed of green disks is not good, and most installed machines use blue disks, while black disks are usually used on servers, while red disks : Between blue and green, it is purely built for NAS system, which can be said to be exclusive to NAS, while purple disk is suitable for surveillance system, supporting up to 32 high-definition cameras.
There are also enterprise disks: maximum performance, large cache, and fast speed. Enterprise-class hard drives have 7*24 hours of uninterrupted operation capability. Compared with desktop-class hard drives, the most important difference between enterprise-class hard drives is reliability and long-term operation.
You can choose the hard disk that suits you according to your needs.
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