How many ways are there to classify servers? What is the role of each? For some friends who are purchasing servers for the first time or operating and maintaining website projects for the first time, they may not understand them deeply enough. The editor will fully analyze and discuss these issues, summarize my own thinking and understanding, and share them with you.

A server, also called a "server", is a computer that runs faster, has a higher load, and is more expensive than a home computer (computer). The function of the server is to provide computing or application services to other clients in the network. It is The foundation of the Internet. With the continuous development of the Internet, the types and forms of servers have also become diverse, and new functions have continued to evolve. For website operators who are new to the industry, it is necessary to understand the types of server rentals. This article will Divide server types from two perspectives, covering all common server types as much as possible, so that everyone can have a preliminary understanding of this.

1. The classification of servers can be divided according to their uses, which are: general-purpose servers and dedicated servers.

(1) General-purpose server: refers to a server that is not specially designed for a special service and can provide a variety of service functions. Currently, most servers are general-purpose servers. This type of server is not designed for a specific function, so it must take into account multiple uses when designing. The structure is relatively complex, requires high performance, and is relatively expensive.

(2) Dedicated server: a server designed specifically for one or several functions. For example, the optical disc image server is mainly used to store optical disc image files, and the server performance also needs to have corresponding functions to adapt to it. The optical disk mirror server needs to be equipped with a large-capacity, high-speed hard disk and optical disk mirror software. Compared with general-purpose servers, dedicated servers have a smaller audience, but are more efficient and much cheaper.

2. Servers can also be classified according to structure, including four types: tower servers, blade servers, rack servers, and cabinet servers.

(1) Tower server: Also known as "desktop server", it looks a bit like an ordinary home desktop. Common entry-level and workgroup-level servers basically use this server structure type. However, due to the limited chassis capacity and independent It is too strong in nature, so it has certain limitations and is not suitable for enterprises with high application requirements.

tower server

(2) Rack-mounted server: It does not look like a computer in appearance, but more like a switch. It has specifications such as 1 U (1U = 1.75 inches), 2 U, and 4 U. Rack servers are installed in standard 19-inch cabinets. Most of these structures are functional servers.

rack server

(3) Blade server: It is a HAHD (High Availability High Density) low-cost server platform specially designed for special application industries and high-density computer environments. Each "blade" is actually a system motherboard. , similar to independent servers.

blade server

(4) Cabinet server: In some high-end enterprise servers, due to the complex internal structure and many internal devices, some also have many different equipment units or several servers are placed in one cabinet. This kind of server is a cabinet server. .

Cabinet server

3. Servers are divided by rental type, which can generally be divided into cloud servers , physical servers, site group servers, high-defense servers, etc.

(1) Cloud server : Cloud server uses cloud computing technology to merge the resources of multiple (unlimited) servers to form a cluster, and then distributes the resources in the cluster to different users, just like cutting a cake. The size is up to you. Cloud servers have the advantages of simplicity, efficiency, safety and reliability, and elastically scalable processing capabilities.

(2) Physical server: A physical server refers to an "independent server". From a business perspective, a physical server is equivalent to a single server. It is configured for exclusive use and can allocate resources on its own or implement multiple network function services. , suitable for some enterprises with larger business.

(3) Station group server: Station group server is a server that configures independent IP for one website or multiple websites. Generally, multiple IPs and independent servers with high configuration are required. The station group server is essentially a type of independent server. The characteristic of station group servers is that they are large in number, and some of them have IPs in different C segments.

(4) High-defense server: High-defense server refers to a server type with an independent single defense of more than 50 G and can provide network security maintenance for a single customer. High-defense servers are also divided into high-defense physical machines and high-defense cloud hosts.

4. In addition, the classification of servers can also be divided according to their uses, which can be divided into: game servers, video servers, web servers, backup servers, database servers, etc. However, no matter how they are distinguished, their forms are still the above three types. In one of the differentiating methods, large enterprises will divide the business into multiple parts and use separate servers to store data. For example, some large-scale online games of game companies place the client, database, and real-time computing in different on the server, so that it is easier to troubleshoot the cause when a failure occurs.

How many ways are there to classify servers? The above is how to classify servers through four common ways of differentiation. I hope you will gain something after reading this. You can continue to follow our account to get more useful content~