What is a diskless system? What are its advantages? What are the disadvantages?

At present, many school computer rooms adopt disk system technology, which has many problems, such as low hard disk speed, slow running speed, easy infection with viruses, huge maintenance workload and so on. It is an inevitable trend to upgrade it to adapt to the teaching work of the school. Using diskless system technology to upgrade the computer room is the first choice for upgrading the school computer room. On the one hand, it can make full use of computer room resources, prolong the service life of computer room and save capital investment; On the other hand, it can greatly enhance the stability and practicability of the computer system in the computer room, avoid repeated management work such as system installation and maintenance, and save manpower investment. At present, diskless system technology has been widely used in large computer rooms such as Internet cafes.

Characteristics of Diskless Teaching System

1, saving money: for a network system with disks, all workstations should be equipped with hard disks, which is a great investment for a computer room. In the process of use, because the service life of the mechanical hard disk that is widely used now is not too long, and some students turn on and off the computer improperly, frequently and do not care about the computer, it is easy to cause damage to the computer hard disk. Replacing the hard disk is not a small investment. Also, because the hard disk is a relatively power-consuming component, the power consumption of the hard disks of dozens of computers in a computer room can not be underestimated. In the diskless system, except the server, other workstations can use no hard disk, which reduces a lot of capital investment and the hardware cost of the computer room. In the process of use, because only the server has a hard disk, you don't have to worry about the hard disk damage of the workstation, and you can save electricity.

2. Easy maintenance: For an ordinary network with a disk, such as a network classroom, if there is something wrong with the workstation in the network, it can't be turned on or connected to the Internet, or the software in the network needs to be upgraded or the latest teaching software installed, then the network administrator will be very busy. He will be responsible for adjusting each machine, installing new software, and even reformatting, partitioning and installing the system on the hard disk of each machine. It may not be long before the system is accidentally destroyed by students, and the installation and debugging are complicated, which delays the work and affects the normal use of teaching. Once the network is infected with virus, the network administrator will be busy again. In the diskless teaching system, because the workstation has no hard disk, students' computers can be turned on and off at will, and they are not afraid of damaging the data and hard disk. Even if the system is installed and updated, because all the operating system and application software files are placed on the server, the management and maintenance of the system are completed on the server. Software installation and update only need to be directly configured once on a diskless computer, and all computers in the network can use the new software. This solves the problems of insufficient computer maintenance personnel and large amount of computer room maintenance, and greatly reduces the workload of system administrators.

3. Good security: Compared with the diskless teaching system, the diskless teaching system has a unique data protection function, and has the same protection function as the system recovery software such as hard disk protection card and restore card, which are often used in computer rooms in the past, and is not afraid of students damaging the system. As long as you restart the computer again, the system will return to its original state. Because of this, the probability of virus infection from the inside of the LAN is reduced to zero, and generally only the server needs to be protected and disinfected.

4. Speed: Diskless teaching system is developing very well now, especially reading and writing server disks, which is no different from having disks. If the related hardware configuration is better and the system is better, it may greatly exceed the disk system with the same capital investment.

5. Strong expansibility: The diskless teaching system only needs to upgrade the server, and does not need to update the hardware frequently. Moreover, the same network is compatible with many different hardware types, and the network scalability is extremely strong, so the whole system upgrade is extremely convenient and simple. Moreover, it can be stored by hard disk and installed in the network by hard disk, which realizes the combination of disk and diskless, is convenient for management and maintenance, and meets various needs of users.

6. Good stability and compatibility: The present diskless teaching system completely simulates the local hard disk, which is stable and reliable and has excellent software compatibility, ensuring that the system can be in an extremely stable state for a long time, and all kinds of teaching software, application software and multimedia software can run unimpeded, thus ensuring the normal teaching.

7. One computer with multiple systems: The systems that students can choose to use when starting the computer can be Windows XP system, Windows 2003 system and Win7 system. Administrators can also switch systems on the server. If students turn on their computers again, everyone can switch to another system. This also solves some software compatibility problems. However, it is not easy to realize these functions in a network with disk drives.

8. Personalized disk: Each student computer can have its own specific directory, and students' homework can be stored at will. Teachers can check students' homework from the server and grade it.

9. It can be stored by hard disk: it can be installed in the network by hard disk, which realizes the combination of disk and non-disk, is convenient for management and maintenance, and meets various needs of users.

Universal application of diskless system in schools

Due to the maturity of diskless system technology and the transition of network bandwidth from gigabit to desktop, it has been widely used in hotels, KTV, Internet cafes, schools and other public airports. Among them, the use in schools mainly includes the following solutions:

1, multimedia computer network classroom;

2. Library or multimedia reading room;

3. Multimedia voice classroom;

4. Banbantong Information Teaching Network;

5. Information teacher preparation office network;

6, the school open public computer room or green campus Internet cafes;

7. Open public computer rooms or green Internet service centers;