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This article introduces how to classify server applications. The content is very detailed. Interested friends can use it for reference. I hope it will be helpful to you.

We know that there are many types of servers, which can be divided into different types according to their nature. according to the application of the server, the server can be classified into domain controller, file server, web server, FTP server, mail server, database server, VoD server and so on. Different types of servers have different requirements for server hardware configuration. Understanding these server types can help us to better choose the server that suits us.

1. Domain controller

It is used for the management of customers, security settings and document / copy resources in the intranet, which usually has to connect dozens, hundreds, or even hundreds of customers. And the domain controller is also the key ownership of all the inner parts, which is related to the normal operation of all the local area networks. In this way, the first reliability requirement is very high, which is very suitable for long-term continuous operation; the second CPU performance, running memory and network port performance are very high, and only then can it be applied to the concurrent connections of so many customers.

two。 File server

The requirements are similar to those of domain controllers, with only slightly lower requirements for the number of concurrent users, as not all Internet customers can browse file servers. However, the file server is used to store Internet customer documents, so the hardware configuration, read and write performance, and hard disk space requirements are higher than domain controllers. It is proposed to select hard drives with good read and write performance: SCSI, SATA, SAS interface hard drives. For this reason, the hard disk array above RAID5 is usually used in the file server, the first is to improve the document reading and writing ability of the file server, and the second is to greatly improve the network information security of the file server.

3.web server

The main feature is that there are many concurrent connections (not only refers to concurrent customers, because a customer usually opens more than one web page, and each web page is a separate connection), in addition, it must be stable and beneficial as a whole. The requirement of many concurrent connections requires the loading performance of the hard disk of the server, and the connection performance of the network port is very high, in addition, it is also necessary to ensure that the working ability of the server CPU is fully guaranteed.

4.FTP server

Performance requirements are also similar to the web server, but the FTP server in the concurrent connection requirements are slightly lower than the web server, but the FTP server usually allows customers to upload files, so the FTP server hardware configuration read and write performance requirements are higher than the web server, and, the required hard disk space is also larger than the web server, you must also choose a stronger transfer performance SCSI, SATA, SAS interface hard disk. In terms of network ports, although the number of concurrent threads is not usually as large as the web server, the FTP server carries out file transfer, which must occupy a large network bandwidth, especially large space; document submission and free download, so the network port connection performance of the FTP server is also very high.

5. Email server

It is close to the P server, because they all have to allow the customer's ability to read and write documents. In the e-mail server, in addition to showing the acceptance function of e-mail to the customer, it is also necessary to show the function of sending mail to the customer. The first requirement is that the hard disk space of the e-mail server is relatively large, and the second is that the hard disk reading ability of the e-mail service project Rong is very strong. The network port connection performance of the natural e-mail server can not be ignored, otherwise the email acceptance and push sequence can not be carried out immediately.

6. Database server

Performance requirements are even higher in terms of relativity for the first few types of servers. Because the database server does not browse immediately like the server described in detail before, but only according to a variety of database indexes, standard comparisons, dynamic access pages, web page submission and other methods to extract some or all of the field names all over the database files, the concentration value is higher, and it must consume resources such as CPU, running memory and hard disk of the server. In the selection of CPU, the current high cpu master frequency, multi-core, thread synchronous CPU (such as Intel's 2-core, quad-core to strong processor, AMD 2-core, quad-core OpteronCPU,IBM quad-core Powers, 2-core Power coin, and its Sun quad-core ULtraSPRCTl and 8-core ULtraSPRCT2CPU, etc.) is a better choice, and running memory usually must be on top of 8GB.

7.VoD server

Focus on practicality, and the transmission is very resource-consuming streaming media, generally speaking, the requirements of the server can compete with the database server. The first requirement is that the streaming media solution of the VoD server is very high, the running memory resources are very sufficient, the hard disk space is very large, and the hard disk loading and stability performance are very high; the second requirement is that the data connection network bandwidth of the VoD server is sufficient and wide, and the connection performance is sufficient.

On how to classify server applications to share here, I hope that the above content can be of some help to 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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