Unlimited server hardware maintenance (I) disassembly (1)

Disassembly
The simplest maintenance of the server hardware system is to modify the server and add or upgrade some components. To this end, this topic begins with server disassembly.
As the price of server accessories gradually decreases, it is not very cost-effective to work with only the standard configuration. At the same time, the server itself also provides users with a wide range of upgrade space, in this way, more and more users choose to upgrade server configurations to achieve better operation efficiency. For example, you can add a CPU, memory, hard disk capacity, a gigabit optical network card, a scsicard, a RAID card, or a RAID card to improve data fault tolerance for a multi-core motherboard. In addition, some server components, such as power supplies and fans, may also experience aging or failure due to long periods of uninterrupted operation, which also requires us to promptly replace them.
Precautions
Power off properly
For a configured server, it is easy to disable and enable it. However, if the operation method is not proper, it may cause unnecessary damage to the device. Therefore, it is necessary to give a detailed introduction to server startup and shutdown.
Shutdown operation:
1. Disable the operating system.
2. Power off the host.
3. Turn off the peripheral power (such as disk arrays and tape libraries ).
4. Power off other devices and cabinets.
5. Turn off the total power supply.
Boot operation:
1. Turn on the total power supply.
2. Power on the computer cabinet.
3. Power on external devices (such as disk arrays and tape libraries ).
4. After the external device self-check is complete, the host is powered on.
Comprehensive Prevention of static electricity
Although the computer is powered by electricity, static electricity can cause fatal damage to the computer, especially the permanent damage to the motherboard chip. There are many causes of static electricity: various power supply devices may produce static electricity, computer CRT monitors may generate static electricity, and mobile phones and walkie talkie at work will also generate a large amount of static electricity in the surrounding space, this requires us to be especially careful with the interference of static electricity and prevent it comprehensively.
1. Try to make the server and its surrounding equipment properly grounded.
2. if the device is not grounded, when we want to contact the board inside, we should first discharge it with grounding wires or other discharge facilities.
3. When operating the device, you should wear anti-static gloves. If not, you can also touch the metal outside the chassis by hand to release the static electricity carried by yourself.