What is Dedicated Server Architecture?

A server is a type of computer that runs faster, loads more, and is more expensive than a normal computer. The server provides computing or application services on the network for other clients (such as PCs, smart phones, ATM and other terminals, and even large equipment such as train systems). The server has high-speed CPU computing capabilities, long-term reliable operation, powerful I / O external data throughput capabilities, and better scalability. According to the services provided by the server, in general, the server has the ability to respond to service requests, undertake services, and guarantee services. As an electronic device, the internal structure of the server is very complicated, but it is not much different from the internal structure of ordinary computers, such as: CPU, hard disk, memory, system, system bus, etc. ^[1]

You can measure whether the server has achieved its design purpose from these aspects; R: Reliability; A: Availability; S: Scalability; U: Usability; M: Manageability, that is, the server RASUM measurement

1. The server is in a poor operating environment

For a computer network server, the operating environment is very important. The environment referred to here mainly includes two aspects of operating temperature and air humidity. The relationship between network servers and electricity is very close. Electricity is the energy support foundation to ensure its normal operation. The requirements for the temperature and humidity of the operating environment of electrical equipment are generally strict. Under high temperature conditions, the network server The overall temperature of the power supply will continue to rise. If the temperature tolerance threshold is exceeded, the device will be damaged to varying degrees, and even severe fires may occur. If the humidity in the environment is too high, a large amount of water vapor will be accumulated in the network server, which may easily cause a leakage accident and seriously threaten the personal safety of users. ^[7]

1. Pay attention to the construction of the computer room environment

The equipment room environment has an important effect on the normal operation of the server. Therefore, the first step in server maintenance and maintenance is to do a good job in the construction of the computer room environment. The equipment room must ensure sufficient space for the installation and configuration of server-related equipment, partitions, flooring, and other details of the server room. The fire prevention work of the computer room is also very important. Once a fire is encountered, how to ensure the safety of the equipment and how to ensure the orderly evacuation of personnel are all factors to be considered in the construction of the computer room. The temperature and humidity of the equipment room should also be maintained within a certain range. The temperature and humidity have a great impact on the normal work of electronic products. Servers are devices that are sensitive to temperature and humidity in electronic equipment. If the server room where the server is located is too dry, it is very easy for people to generate static electricity during contact with the equipment in the computer room. This kind of static electricity generally has thousands of volts or even tens of thousands of volts, which is very dangerous to the normal operation of the server and easily causes serious accidents. How to do a scientific and reasonable layout and management of the computer room is the key to the construction of the computer room. At present, there are still many things that need to be improved in the management of computer server rooms in China. For example, the modernization level of the management of computer rooms is not high. Many monitoring and maintenance tasks are performed solely by manpower, and no information-based and networked management mechanism has been formed. In fact, the electronic detection system is not difficult in design or implementation, but due to insufficient attention, the overall level of computer room construction is still hovering at a low level. ^[10]

2. Do a good job of hardware maintenance

The hardware composition of the server is relatively complicated, and the maintenance of the server hardware should be performed by professionals. When maintaining and maintaining storage equipment, we should first test its capacity to see if it needs to be expanded. The storage capacity must be able to meet the needs of the task and leave a certain amount of redundancy. When removing and updating server equipment, make sure that the equipment is powered off and grounded. Even if the simplest parts are replaced, these links cannot be omitted. For some unfamiliar components, you must read the manual and reference documents carefully and carefully, and you must not dismantle them blindly without being sure. Dust the server regularly. Dust has a strong impact on the work of the hardware. Especially for equipment such as servers running at high temperature and high speed, a large amount of dust can cause fatal damage to the equipment. Dust removal must be carried out in a scientific and orderly manner. Pay special attention to the protection of the power supply system during the dust removal process. ^[10]

3. Maintain server software

Software is an important part of the server. The stable and efficient operation of the server cannot be separated from the corresponding software. We need to conduct regular inspections of the server's software system to detect vulnerabilities in time and install official patches in a timely manner. When expanding the server database, if conditions permit, it is best to back up the original data to avoid unnecessary losses. 4. Doing a good job of power control Without a stable power guarantee, the server cannot work normally. Electronic control is a very critical issue that is easily overlooked. At the beginning of the construction of the computer room, we should fully consider the power guarantee of the server. Design and configure a stable and reliable power supply system for the computer room. This system also needs to be able to handle and respond to emergencies, such as unpredictable power outages and lightning. ^[10]

5. Password management

Server password management is the most critical component of server defense capabilities. The management and replacement of passwords should form a set of long-term mechanisms. We need to change the password of the server regularly. The password should be managed by someone. The selected password must have a certain degree of professionalism and a certain degree of complexity. It is best to combine numbers and letters, and the case must be integrated. In the daily inspection, we need to do a good job of statistics, and close some ports that are not used. ^[10]