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What are the common problems and selection criteria of the database server? Please see below.

Database server is widely used in some enterprises with large amount of data, such as finance, games, banks and so on. It is mainly used for storing and querying data information. Because the data server stores this large amount of important data and needs to call and calculate the large amount of data, the data server usually has high security and stability. At the same time, it must also be supported by a strong hardware configuration. Here is a detailed description of what is a database server and what should we pay attention to when purchasing or renting a database server?

What is a database server

The database server refers to the server based on the database application program of the client / server architecture, so the database server is usually built by the database management system and the server. Usually, databases are mainly used to perform data analysis, storage, data processing, storage, and other non-user-specific tasks. World data specializes in providing global overseas server host resources such as Hong Kong server, American server, Korean server, Singapore server, Japanese server and so on, and the service is well received by the industry and users.

When the database server works mainly when the user needs to operate the data, the database server software will carry out a series of data processing and calls, and show it in the front end of the data. The database is only part of the server, and most servers have a database. There are many kinds of servers, including database server, which is a server with high-density IO (read and write) operations. In addition, there are Web servers, FTP servers, game servers and so on.

Usually, there are three kinds of application software used for data exchange.

● Database Server Application programming Interface API

● communication connection software and network transport protocol.

── SQL, a common data access language for ●

How to select the database server

As the database server needs to process and store a large amount of data, it is necessary to ensure its stability, security and strong error proofreading ability when selecting a database server. If it is an enterprise engaged in foreign trade, for example, when the user group is in the United States, you can choose to rent a high-defense American server or host the server to the United States computer room to build a database server.

What are the selection criteria for database servers

First, the database server needs security:

Security is the primary standard for database selection, and the choice of security is mainly considered from two aspects: first, the server material should have a high hard standard, and the data can be effectively processed when the outside is attacked by traffic such as DDoS. Secondly, the cooling system of the server and the ability to adapt to the environment should be strong, so that it can meet the requirements of server security in hardware.

Database servers mostly deal with the core data of related systems, on which key transactions and important data are stored and run. These transactions and data are very important assets for users, and they are very sensitive to security. The security of the server is closely related to the overall security of the system, such as network system security, data encryption, cryptosystem and so on. The server itself, including hardware and software, should be designed and considered from the perspective of security, with the help of external security facilities, but also to ensure its own high security.

Second, the database server needs reliability

The database server should support redundant technology, while such devices as hard disk, memory, network card and so on should be stable and durable, followed by performance.

The reliability of database server is the primary consideration in the selection of equipment and systems, especially in large-scale systems with a large number of processing requirements and long-term operation. Considering the reliability of the server system, we should consider not only the reliability or stability of a single node of the server, but also the overall reliability of the connection between the server and related auxiliary systems or storage, such as network security system, Web website system, remote printing system and so on. When necessary, you should also consider using clustering technology for key servers, or even possible full fault-tolerant machines.

Third, database server needs high performance

The performance of the server processor is critical. How high the main frequency of CPU, how fast the data processing speed and how big the cache directly affect the database.

The database server selected and purchased by enterprises can not only meet the needs of operation and business processing, but also meet the growth of business volume in a certain period of time. Generally, the required server TPMC value can be calculated according to the empirical formula (Tpmc is a program that measures the transaction processing ability of the computer system), and then compare the TpmC value published by various server manufacturers and TPC organizations, and select the corresponding model. At the same time, use the market price / quotation of the server to remove the calculated TpmC value to get the price per unit TPMC, and then select the server with high performance-to-price ratio.

Fourth, the database server needs expansibility:

The IO of the server should be high, otherwise there will be bottlenecks when both CPU and memory are high performance. In addition, the scalability of the server is better, in order to meet the needs of the development of enterprises in the future.

Ensure that the selected database server has excellent scalability. Because the server is the core of all system processing, it is required to have big data throughput rate, including: Icano rate and network communication rate, and the server needs to be able to handle the amount of data brought about by business development in a certain period of time. The server needs to be able to upgrade itself according to the needs of business development at the corresponding time. The more direct methods are: upgrading the CPU model, expanding the memory, expanding the hard disk, replacing the network card, increasing the number of terminals, attaching the disk array or forming a cluster system with other servers to access the centralized data concurrently. General database and billing application servers will use cluster mode to increase reliability in the design of large-scale billing system. According to the amount of data and investment considerations, the attached disk storage system can use DAS, NAS or SAN technology.

Fifth, the database server needs manageability:

Database servers should choose to support multi-system servers as much as possible. The more systems the server is compatible with, the more choices users have.

The server is not only the core but also a node part of the whole system, just as the network system needs management and maintenance, it also needs to manage the server effectively. This requires the software and hardware of the server to support the standard management system, especially the operating system, including some important system components.

The above is about the database server common questions and selection criteria related introduction, if you want to know more, welcome to follow the industry information channel!

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