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This article is about what is the basic equipment to provide shared resources for the network in the computer network system. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

In the computer network system, the basic equipment that provides shared resources for the network is the "server". The server provides computing or application services to other clients (such as PCs, smartphones, ATM, etc.) in the network. The server is the node of the network, which stores and processes 80% of the data and information on the network, and plays an important role in the network.

In the computer network system, the basic equipment that provides shared resources for the network is the "server".

Server is a kind of computer, which runs faster, has a higher load and is more expensive than ordinary computers. The server provides computing or application services for other clients (such as PCs, smartphones, ATM terminals and even large devices such as train systems) in the network.

The server has high-speed CPU computing ability, long-time reliable operation, strong external data throughput and better expansibility. According to the services provided by the server, generally speaking, the server has the ability to respond to service requests, undertake services, and guarantee services.

The composition of server is similar to that of ordinary computer, including processor, hard disk, memory, system bus and so on, but because it is specially customized for specific network applications, there are great differences between servers and microcomputers in terms of processing power, stability, reliability, security, scalability, manageability and so on. The server mainly includes network server (DNS, DHCP), print server, terminal server, disk server, mail server, file server and so on.

Properties:

From these aspects, we can measure whether the server has achieved its design purpose; R:Reliability reliability; A:Availability availability; S:Scalability scalability; U:Usability ease of use; M:Manageability manageability, that is, the RASUM measure of the server.

1. Scalability

The server must be "scalable" because the enterprise network cannot remain the same for a long time, especially in today's information age. If the server does not have a certain scalability, when the increase in the number of users will not be competent, a server worth tens of thousands or even hundreds of thousands of servers will be eliminated in a short time, which is unbearable for any enterprise. In order to maintain scalability, it is usually necessary to have a certain amount of expandable space and redundancy on the server (such as disk array rack, PCI, memory slot, etc.).

Scalability is specifically reflected in whether the hard disk can be expanded, whether CPU can be upgraded or expanded, and whether the system supports a variety of optional mainstream operating systems such as WindowsNT, Linux or UNIX. Only in this way can we keep the early investment to be fully utilized in the later stage.

2. Ease of use

The function of the server is much more complex than that of the PC, which refers not only to its hardware configuration, but also to its software system configuration. It is inconceivable for the server to achieve so many functions without comprehensive software support. However, a large number of software systems may lead to a decline in the performance of the server, and managers can not operate it effectively. Therefore, when designing the server, many server manufacturers should not only fully consider the availability and stability of the server, but also make great efforts in the ease of use of the server.

The ease of use of the server is mainly reflected in whether the server is easy to operate, whether the user navigation system is perfect, whether the chassis design is humanized, whether there are key recovery functions, whether there is operating system backup, and whether there is adequate training support and so on.

3. Availability

For a server, a very important aspect is its "availability", that is, the selected server can meet the requirements of long-term stable work, can not often have problems. In fact, it is equivalent to the Reliability proposed by Sun.

Because the server is faced with users of the entire network, not a single user, in large and medium-sized enterprises, the server is usually required to be uninterrupted. In some special application areas, some servers have to work continuously even if they are not used by users, because it must provide continuous connection services to users, whether at work or off work, on weekdays, or on holidays. This is the fundamental reason why the server must have a high degree of stability.

Generally speaking, specialized servers have to work 7X24 round the clock, especially like some large web servers, such as servers used by large companies, website servers, and iqdeWEB servers that provide public services. For these servers, there may be only one real boot time, that is, it has just been bought back into full installation and put into formal use, and since then, it has worked continuously until it has been completely scrapped. If something goes wrong easily, it is impossible for the network to operate normally for a long time. In order to ensure the high "availability" of the server, in addition to requiring the quality of the accessories, necessary technical and configuration measures can also be taken, such as hardware redundancy, online diagnosis and so on.

4. Manageability

Among the main features of the server, another important feature is the "manageability" of the server. Although we say that the server needs to work continuously, no matter how good the product is, it is possible to break down. To take a common saying, it is not that we do not know when it may be broken, but when it may be broken. Although the server has enough guarantee in terms of stability, it should also have necessary measures to avoid errors in order to find the problem in time, and it can be maintained in time if there is a failure. This can not only reduce the chance of server errors, but also greatly improve the efficiency of server maintenance. In fact, it is the Serviceability proposed by Sun.

The manageability of the server is also reflected in whether the server has an intelligent management system, automatic alarm function, independent and systematic management system, LCD monitor and so on. Only in this way can administrators manage easily and work efficiently.

Thank you for reading! This is the end of the article on "what is the basic equipment for providing shared resources for the network in the computer network system". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, you can share it for more people to see!

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