Is there really no hard disk in a diskless system?

Diskless system generally refers to a local area network composed of diskless workstations. Compared with ordinary PC diskless workstation, it can start and run the operating system without any external storage (floppy disk drive, hardware, CD, etc.). In order to support such a network architecture, a special software system is needed, and such software becomes one of the components of the whole diskless system.

Starting principle of diskless system;

1. The network card of the diskless workstation is equipped with a boot ROM, which will send a boot request number to the server when the workstation is started in LAN mode.

2. After the server receives it, it sends the startup data to the workstation according to different mechanisms. After the workstation downloads the startup data, the system control right is transferred from the boot rom to some specific areas in the memory, and the operating system is booted.

3. According to different startup mechanisms, commonly used diskless workstations can be divided into RPL, PXE and virtual hard disk. At present, the mainstream diskless systems at home and abroad are all based on PXE virtual hard disk mode.

applied range

The diskless network system can be applied to the establishment and transformation of network classrooms, intranets, Internet cafes, hotels, music-ordering entertainment industries and all diskless networks.

1, which is suitable for schools to establish or transform diskless network classrooms.

2, suitable for large and medium-sized companies, enterprises and institutions, business halls and other offices.

3, suitable for games and Internet cafes.

4, suitable for hotels, KTV karaoke bars, etc. (There is no need for managers to enter the guest room for installation and debugging)

Advantages of diskless:

1. Save the cost of network deployment and shorten the installation time of network building system.

2. Easy to manage and maintain, adopt the international mainstream concept of virtualized desktop storage, manage all the machines in the network in a unified way, centrally complete unified software deployment and version update, and save management costs.

3. In the normal user mode, all operations on the operating system of the diskless workstation will resume after restarting, which can prevent virus invasion and misoperation damage and save maintenance costs.