What are the specific roles of servers?

1. The role of the server is mainly to provide data sharing for everyone to access their data through the network.

2. Server, also known as server.

It is a device that provides computing services. Since the server needs to respond to and process service requests, the server should generally have the ability to undertake and guarantee services.

3. The composition of the server includes processor, hard disk sparrow, memory eggplant imitation, system bus, etc., which is similar to the general computer architecture, but it is due to the need to provide highly reliable services, so it has high requirements in terms of processing capacity, stability, reliability, security, scalability, and manageability.

1.Physical server: A server that is built directly on physical hardware and is usually served by a single physical server.

2.Virtual server: refers to the division of a physical server into multiple virtual servers through virtual dispersion technology, each virtual server can run different operating systems and applications independently, isolated from each other.

3.Cloud server: refers to the use of resources allocated to users through the virtualization platform provided by cloud service providers based on cloud computing technology, and the servers virtualized on the cloud platform are also known as cloud servers, and users can expand or reduce resources at any time according to their needs.

Servers can be categorized in different ways, and the following are the common ways to classify them:

1.Classified by merger application: including web server, mail server, file server, database server, etc.

2.Classified by operating system: including Windows servers, Linux servers, etc.

3.Classification by hardware: including tower servers, rack servers, blade servers, etc.

4.Classified by hosting mode: including physical servers, virtual servers, cloud servers, etc.

5.Classification by processor: including x86 servers, sparc servers, powerpc servers, etc.

6.Classification by performance: including high-performance computing servers, enterprise-class servers, small servers, etc.

7.Classified by application scenarios: including data center servers, edge computing servers, IoT servers, etc.

These are just a few of the common ways to classify servers, but there are many other ways in which servers can be categorized.

Tower servers.

Tower servers are generally the most seen, and its shape and structure are similar to ordinary PCs, but they are slightly larger, and there is no uniform standard for the size of their Senshengshi.

The motherboard of the tower server is more expandable, and there are many slots, and the chassis of the tower server often reserves a lot of space for redundant expansion of hard disks, power supplies, etc. This kind of server does not require additional equipment, does not require much space, and has good scalability and can be highly configured, so it has a wide range of applications and can meet the needs of common server applications.

This type of server is especially suitable for common entry-level and workgroup-level server applications, and the cost is relatively low, and the performance can meet the requirements of most small and medium-sized enterprise users, and the current market demand space is still very large.

However, this type of server also has many limitations, and when it is necessary to use multiple servers to work at the same time to meet the needs of higher server applications, it is not suitable because of its large individuality, occupies a lot of space, and is not convenient to manage.

Rack servers.

Rack servers are actually products under industrial standardization, and their appearance is designed according to the unified standard of Xiaofu, and is used in a unified manner with cabinets to meet the intensive deployment needs of enterprise servers. The main function of rack servers is to save space, because they can be installed in a single cabinet, which not only takes up less space, but also facilitates unified management. The width of the rack server is 19 inches, and the height is measured in U (1U = inch = mm), and there are usually several standard servers of 1U, 2U, 3U, 4U, 5U, and 7U.

The advantage of this kind of server is that it occupies a small space and is easy to manage in a unified manner, but due to internal space limitations, the scalability is more limited, for example, most of the 1U servers only have 1 or 2 PCI expansion slots. In addition, heat dissipation performance is also a problem that needs attention, in addition to the need for cabinets and other equipment, so this kind of server is mostly used for large enterprises with a large number of servers, and many enterprises use this type of server, but the server is delivered to a specialized server hosting agency to host, especially at present, many ** servers are used in this way. This limb.

Due to the limitations of scalability and heat dissipation, this kind of server has limited performance and limited application scope, and often only focuses on certain applications, such as remote storage and network services.

In terms of **, rack servers are generally two to three percent more expensive than tower servers with the same configuration.