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This article mainly explains "what are the appearance characteristics of the server". Interested friends may wish to have a look at it. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn "what are the appearance features of the server"?

Appearance features of the server:

1. The motherboard is large and has many interfaces

Generally speaking, the server motherboard is much larger than the PC motherboard, and all kinds of interfaces are much more than the PC motherboard. This is mainly because it needs to install more components than the PC and need to connect more external devices.

Sometimes in order to save the space of the motherboard, some of the concentrated functional components are provided with a separate board. For example, some servers put all the PCI or PCI-X plugs together and connect them in a separate box outside the chassis.

Of course, the motherboard of the service cake is not absolutely large. Integrated general-purpose servers are larger, while rack and blade servers may also have smaller motherboards because they only need to install fewer components and connect fewer external devices.

two。 Have redundant parts

In some high-end servers, you can see some strange phenomena, that is, in a service, there will be two or more power supplies and fans, and there are some network cards that are not really connected. Some hard drives may not even be used. In fact, these seemingly useless components are not really "useless flying is just not used at the moment. Officials are prepared to replace the same working parts when they are in trouble. As the saying goes," redundant parts fly with these redundant components. Even if the components in use fail, they can still be replaced in time, so as not to cause the server to stop working and keep the entire network running normally. This is important to ensure the high availability of the server.

Redundancy of power supplies, fans, and network cards may be easy for everyone to understand, but hard disk redundancy is not so simple. Generally speaking, the hard disk used for redundancy needs to back up the working hard disk periodically. Only in this way can the redundant hard disk take over the work and provide services with the latest network system configuration immediately.

3. Support for hot swappin

Although "hot plug" is a kind of technology, it can still be recognized and discerned from the sense through the usual operation. Because the hardware that supports hot plug can be traced and unplugged online, it will not affect the operation of the system, unlike the corresponding hardware in the PC, once it is plugged and unplugged online, it will crash. Because hot-swappable requires specialized technology, devices that use this technology are usually expensive and are rare in PC hardware.

Hot-swappable technology mainly facilitates the maintenance of the server, such as finding that the hard disk is not enough, or that a hard disk is damaged, just insert the new hard disk into the location reserved by the server, or unplug the broken hard disk directly from the server for repair, all these operations do not need to shut down the server system, ensuring the uninterrupted operation of the server. At present, hot-swappable technology is mainly supported by hard drives (such as SCSI and SATA interface hard drives), power supplies, fans and PCI adapter cards (mainly network cards). There are also some high-end servers that support hot swapping of memory and CPU. The use of hot-swappable technology can directly plug in new parts or unplug old parts from the service without turning off the server power, which greatly facilitates the maintenance of the server and ensures the permanent operation of the server.

At this point, I believe you have a deeper understanding of "what are the appearance characteristics of the server?" you might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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