What is mirroring and its use?

Mirroring is like looking in a mirror. The mirror we generally refer to is to make the system a ghost image. This can be a very short time, it is easy to restore a complete system. The image can be said to be a file, such as iso, gho belong to the image file, the image file can be burned directly to the disc, you can also use a virtual drive to open.

What is a virtual drive

Virtual CD-ROM is a kind of CD-ROM working tool software, which can generate the same virtual light tolerance as the optical driving energy installed on your computer. What the CD-ROM drive can do is the same as the virtual CD-ROM drive. How does this work? After one or more virtual optical drives are virtualized, the application software on the optical disk is stored on the hard disk and an image file of the virtual optical drive is generated. Then the image file can be placed in Windows 95/98/NT. Virtual CD-ROM drive to use, so when you want to start the application in the future, you do not have to put the CD-ROM in the drive, there is no need to wait for the slow start of the light, just click on the insert icon, virtual disk immediately loaded Running in the virtual drive is fast and convenient.

A mirroring site places an identical site on several servers, each with its own URL, and mirrors each other on these servers. It is not much different from the main station, or it can be considered as a backup measure for the main station. The benefits of having a mirroring site are: If you cannot make normal access to the master (if a server dies or crashes), you can still browse through other servers. Relatively speaking, the main station is slightly better than the mirror site in terms of speed and other aspects.

Mirroring is to be exactly the same station as your station, that is, just like a mirror. It is generally the head of a personal website that makes a backup of its own station. That is, when a station cannot be accessed due to traffic or other reasons, people can go to another station that looks exactly the same. This station can also serve as a diversion to reduce server pressure. However, these are the approaches taken by the personal website's servers that cannot accept too much traffic. Commercial websites generally do not use this method. Because the user has to remember two domain names, the content must be uploaded twice. It is necessary to keep the two places consistent at any time, and the content is too much trouble.

Incremental Encoder

Incremental encoders provide speed, direction and relative position feedback by generating a stream of binary pulses proportional to the rotation of a motor or driven shaft. Lander offers both optical and magnetic incremental encoders in 4 mounting options: shafted with coupling, hollow-shaft, hub-shaft or bearingless. Single channel incremental encoders can measure speed which dual channel or quadrature encoders (AB) can interpret direction based on the phase relationship between the 2 channels. Indexed quadrature encoders (ABZ) are also available for homing location are startup.

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Jilin Lander Intelligent Technology Co., Ltd , https://www.jilinlandermotor.com