Most of the servers mentioned today are servers with high computing power, which can respond to thousands of customer service requests. Although the server is equivalent to the commonly used personal computer (PC) in terms of equipment structure, they are quite different in performance and function.
The "database" and "Web service" servers are specially used, while the commonly used personal computers (PCs) are specially used, and desktop computing and terminal applications are specially used. Compared with personal computer (PC), the gap between the two in design foothold makes the server have more reliable continuous operation capability, stronger storage capability and network communication capability, and more convenient fault recovery function and larger expansion space. In addition, since the server is very sensitive to data, it is also specified that the server has a "data backup function".
PC (personal computer) only requires one user to provide services for a period of time, while the server needs to carry and respond to the service requests of thousands of users to ensure long-term startup and operation. Compared with ordinary personal computers (PCs), servers need to work continuously within 7 * 24 hours.
Therefore, "stability" is the most important for the server. The server needs to bear the working standard of full adult load, and cannot be restarted randomly like an ordinary personal computer (PC). In general, the sustainable professional ability of servers is mostly considered by MTBF (mean time between failures). The downtime of the server is very short every year. When the reliability of the server reaches 99%, the downtime is about 87.6 hours every year; When the reliability reaches 99.999%, the annual downtime is only 5 minutes. So, which server is better? Can it run smoothly without downtime? Huawei Cloud servers are actually very good. So today, Micron Network will analyze it for you.
1. Operating environment
The first is the operating environment. The data center machine room where servers are usually deployed is required to be dust-free, the indoor environment is good, and the temperature is controlled at 4 to 40 degrees above zero, otherwise it will have an impact on electronic parts. The working environment temperature of most electronic information equipment should be between "18 ℃~30 ℃", and the ideal temperature is "26 ℃". If the temperature is too high or too low, the server will be damaged and its aging will be accelerated, thus interfering with the service life of the server. For this reason, servers are usually placed in the air flowing space, with 24-hour air conditioning cooling, used to adjust the temperature and serve them.
2. Operation status
The running state of the server interferes with its service life. Usually, the server CPU load is always above 80%, which will interfere with the life of the fan and CPU to a certain extent. Therefore, the server usually does not work over frequently. In addition, the computer room staff will regularly check the working status of the server hardware equipment, and detect that small problems can be handled on time. Therefore, normally, the server can be used for more than five years.
3. Reliable power supply
The server cannot work without the power supply. In addition, the power supply is also the specific cause of the computer problem. The first step is to ensure that the server uses a power supply of appropriate power. The voltage of server power supply is generally 220V/50Hz, and it is growing towards "low-voltage, high-power, high-density, high-efficiency, distributed" and other aspects. UPS (Uninterruptible Power Supply System) ensures that the server can continue to work in case of sudden power failure. In addition, the power supply selected for the server is separated from the lighting power supply, and a separate socket is selected.
4. Powerful hardware design
The server is also a computer, but generally speaking, the server is a very unique hardware facility. Due to the influence of "jobs", many places have made it more "special". In response to the feature of "server reliability prevails", the server CPU is built with various fault tolerance and error correction mechanisms; The memory with ECC verification chip is selected as the memory, and the risk of data interference and error is much lower than that of non ECC memory; The servers are all made of pure copper radiators and fins, and the chassis fans are also qualified. The built-in integrated graphics card does not work most of the time; Main boards are all PCB (printed circuit board) with more than 6 layers, and the life span of hard disk is twice that of ordinary hard disk. The development of such hardware provides further strong support for the reliability of the server.
5. Dedicated operating system
Server operating systems such as "WindowsServer, Unix and Linux" specially designed for the server can turn off the service program of the graphical interface without an external display, so that the server's operating system is not turned on by default. The dedicated operating system brings "high security, high reliability, high availability and high scalability", which makes a major contribution to the reliability of the server.
6. Redundancy design
Redundancy refers to repeatedly configuring many parts of the system. When the system has problems, the redundant configured parts can enter and take on the work of the problem parts, thus reducing the problem time of the system. Dual power supply systems are widely used in high-end server products. These two power supplies are load balanced, that is, they both bring power to the system when the system is working. When one power supply fails, the other takes on all the load. Many server systems have completed DC (direct current) redundancy; Many other server products, such as Micron's "NetFRAME9000", complete the full redundancy of AC and DC (alternating current and direct current).
7. Excellent cluster architecture
What if a server in a server cluster has a hardware failure? If the CPU (central processing unit) or memory fails, it is easy to cause the server to shut down. In such cases, the cluster architecture of servers can enable multiple servers to apply the same service, and one or more servers will go offline due to failure, without serious impact on the overall service.
8. Professional maintenance
According to statistics, financial enterprises lose an average of US $10 million each time of downtime, and the loss of intangible assets caused is also immeasurable. Therefore, professional maintenance is indispensable for the data center computer room where servers are deployed. The server has a large amount of backup redundancy under the specified conditions. When it is applied, the operation and maintenance personnel will eliminate the fault on time. Professional maintenance personnel have formulated a series of maintenance systems and post disaster repair strategies, providing logistical support for the smooth application of servers.
Huawei Cloud is an excellent cloud computing service provider with perfect industry solutions and excellent cloud computing technology. The self-developed pure SSD architecture ECS breaks the industry record with 50000 IOPS random read/write speed and 800 Mb/s throughput as performance indicators. The vps elastic cloud server uses pure SSD architecture hardware devices. It takes only a few minutes to easily obtain and enable the cloud to meet your computing needs. Expanding the flexibility of resource use also saves you computing costs, simplifies IT operations, and enables you to pay more attention to core business innovation.
