“The characteristics of these storage methods are different. Specifically, the laser pointer hard disk storage can achieve fast recording and reading of data and meet the needs of fast online access to data. It is the current mainstream storage method. Its fast reading and writing speed can Quickly perform data storage, query, and retrieval operations, and the read and write speed can reach 400MB / s. However, the disk life is short, generally only 3 to 5 years, and the environment requirements are high when the disk is used.
Tape storage is also a magnetic storage method. Generally speaking, the tape library is mainly located at the terminal for offline data storage, which can meet the needs of large-capacity data recording. However, tape storage has high requirements for the storage environment. Changes in temperature, humidity, and magnetic fields will cause the tape to deform, degrade, stick, mold, and magnetize, and it will need to be rewinded every 2 to 3 years, with poor compatibility.
“Relatively speaking, laser pointer Blu-ray storage, as a new generation of storage technology, has made breakthrough progress compared to CD / DVD technology. It has achieved a technological leap in both storage media and storage devices. In terms of storage media, it uses “Inorganic phase change material” method of recording data, more stable than CD / DVD “organic pigment” technology, longer storage time. Blu-ray storage is more reliable, long life, high-quality optical storage media can be used for about 50 years.