Talk about the daily maintenance of the data center.

To keep the data center running stably, a large number of professional and technical personnel are needed. Generally, data centers that undertake important business are manned 24 hours a day, while unattended data centers can only undertake unimportant business, and there are almost no data centers that are completely unattended and maintained. Therefore, the daily maintenance of the data center is tedious, but it is very important. With the complete dependence of people's work and life on data, the data center carrying data calculation and operation plays an increasingly important role, which highlights the importance of maintenance.

When a data center is completed and put into production, the maintenance work begins until the end of the data center life cycle. Generally, we can divide the maintenance work of data center into four categories: one is daily inspection; The second is to apply changes and deploy classes; Third, software and hardware upgrade; The fourth is sudden fault handling. Let's talk about these maintenance work in detail, so that everyone can have an understanding of maintenance work.

Check regularly.

? A levee of a thousand miles, collapsed in an ant hole? . Any failure may appear before it happens, and small hidden dangers may lead to big failures if they are not eliminated. Therefore, the routine inspection of the data center is boring, but it is also very important, which can find some hidden dangers in operation in time. According to the different importance of the services carried by the data center, all the running equipment in the data center are routinely inspected. Some data center equipment manufacturers provide inspection software, such as network management software and security protection software. These softwares can be used to check the data center network to see whether there are abnormal alarms in the log, whether the network is interrupted for a short time, whether the ports are on/off, etc. See how the network quality is through the network detection software. Check whether the server application service is normal and the CPU memory utilization rate is normal. Check the application business, such as search business, you can search the words through the server to see if the search results and delay are within the normal range. These checks should be repeated every day. Once there is an abnormality, it should be handled and eliminated in time. When necessary, important business should be switched to standby environment, and then switched back after elimination.

Also check the computer room environment of the data center to see if the temperature, humidity and dust of the environment meet the requirements. Air conditioning and power supply system are running well, whether the equipment is overheated, floor, skylight, fire protection and monitoring are all parts of the inspection. Unreasonable places should be rectified in time and not be lazy. Frequent visits to some data centers will reveal that many maintenance personnel on duty are holding computers to browse the web and play games. Deal with daily inspections, or even not at all. As long as there is no fault, it takes time to play games, so it is only a matter of time before the data center collapses. Once something goes wrong, you are all thumbs, and you can't even figure out which business goes to which device, which port and which network cable. A small problem may lead to a big problem because you are not familiar with it, and daily inspection can't cope with it at all. Although it needs to be repeated, it is important. In the process of continuous investigation, you will have a deeper understanding of the data center, so that you will make new discoveries and learn from them every time.

Application change

The services hosted by the data center will not be static. With the diversification of services, it is often necessary to adjust services, including server and network settings. Therefore, to be familiar with the operation of servers and network devices, it is mainly necessary to master Linux server commands and network protocols. Make changes according to the needs of the application. At this time, higher requirements are put forward for maintenance personnel, not only to be familiar with the original business of the data center, but also to have a correct understanding of the new application business, so as to make adjustments without affecting the original business. Such application changes may be made several times a month, which is a compulsory course for data center maintenance personnel and highlights the basic skill level of a technician. At this time, you should be familiar with the equipment operation commands and know how to realize the business. You should always deal with the technicians of the equipment manufacturers and master the operation methods of the equipment as soon as possible through communication. At the same time, because the equipment manufacturers don't understand the application business, the maintenance personnel need to coordinate the application business and the specific implementation of the equipment. Complete the deployment of application business with the fastest time and the least cost.

Software and hardware upgrades

The equipment in the data center usually runs for five years. There are devices that need to be eliminated and replaced constantly, and some devices need to be upgraded because of software defects. Therefore, software and hardware upgrade is also a part of maintenance work, especially when software and hardware fail, they must be replaced. Sometimes in order not to affect the business, it is often necessary for equipment manufacturers to provide software patches to solve problems. There are hundreds of devices in the data center, and it is normal for them to have software and hardware failures. Therefore, it is necessary to constantly upgrade the software and hardware. This kind of work is often carried out after the early hours of the morning when the business volume is the least. It is common for maintenance personnel to stay up all night. Maintenance personnel should have good physical fitness, otherwise they will be overwhelmed. When upgrading software and hardware, it is necessary to do a good job of fallback mechanism to prevent the upgrade from going wrong and the business cannot be restored for a long time. When you take over the maintenance of the data center, you will find out why there are so many upgrades, almost every month. Staying up late to upgrade has become a routine for maintenance personnel.

Unexpected failure

No data center is trouble-free, and there will be problems in the operation of data centers. At this time, it shows the high technical level of maintenance personnel. According to statistics, 80% of failures are human failures, so the level of maintenance personnel often determines the stability of a data center. In addition, for sudden failure, high-level maintenance personnel can calm down and calmly analyze the trigger causes of the failure and find a solution quickly. If they can't find a solution in a short time, they can also resume their business by switching to a standby device and then analyze it. At this time, it is very important for a data center to have high-level maintenance personnel, which can come in handy at critical moments.

Although these jobs look ordinary, don't underestimate them. The maintenance of data center is actually very important, which is related to the normal operation of the whole data center business. At present, such professionals are in great demand in the market, especially those with deep troubleshooting level are scarce. Only by paying attention to the maintenance of the data center can we give the data center a peace.