What is the difference between Western Digital green disk and blue disk?

Features of Western Digital (WD) green disk, blue disk, black disk, red disk and purple disk:

Western Digital (WD) green disk

Green disk: low noise, suitable for For home use, as a download disk, the advantage is that it generates less heat, is quieter, and is more environmentally friendly. Energy-saving disk, suitable for large-capacity storage; using IntelliPower technology, the rotation speed will automatically adjust between 5400-7200. The advantages are quietness and low price; the disadvantages are poor performance, high latency and short lifespan.

Western Digital (WD) blue disk

Blue disk: Suitable for home use, the advantage is stronger performance, lower price, high cost performance, the rotation speed is 7200 rpm; the disadvantage is that the sound is slightly better than the green disk Noise, performance is slightly worse than black disk.

Western Digital (WD) black disk

Black disk: high performance, large cache, fast speed. Codename: LS WD Caviar Black. Mainly suitable for enterprises, high-throughput servers, high-performance computing applications, such as multimedia video and photo editing, and high-performance game consoles.

Western Digital (WD) red disk

Red disk: suitable for operation in a NAS environment and an environment that operates 24 hours a day, 7 days a day. Western Digital's new hard drive for the NAS market is aimed at home or small business NAS users with 1 to 5 hard drive bays. The performance characteristics are close to those of green disks. It has lower power consumption, less noise, and can adapt to long-term continuous work. It has the unique technology NASware, which makes its compatibility even better. It can have outstanding performance whether it is for NAS or RAID. Compatibility performance.

Western Digital (WD) Purple Disk

Purple Disk: Green disk AV-GP vest, supports streaming and ignores CRC check, suitable for video surveillance storage, 24*7 design.

In addition, there are enterprise disks: highest performance, large cache, and fast speed. Enterprise-class hard drives have the ability to operate 7*24 hours a day. Compared with desktop-class hard drives, the most important differences between enterprise-class hard drives are reliability, long-term operation, and high MTBF (Mean Time Before Failure). time). The speed is about the same.

Enterprise-level hard drives are not the same as server-level hard drives. They do not necessarily have to have better performance than desktop-level hard drives. For enterprise users, stability is more important. In complex work, if the hard disk suddenly fails, it will cause irreparable losses to the enterprise.

Summary of Western Digital hard drives:

Through the above introduction of Western Digital mechanical hard drives, we can see that green disks and blue disks are suitable for home computers. Generally speaking, green disks are not fast, and most of them Blue disks are used for installation, while black disks are usually used on servers. Red disks: between blue and green, are purely built for NAS systems and can be said to be exclusive to NAS. Purple disks are suitable for use in monitoring systems and support up to 32 HD cameras.

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