Accumulation of common sense – sorting out the concepts of server cabinet size

For ordinary webmasters, we mostly choose virtual hosts, cloud servers, or even independent server vendors directly. However, most people use cloud servers for the same purpose, and ordinary projects do not use other services. Higher level hosting products. However, if we are doing cloud server hosting, or the company's business needs to directly put up server cabinets, you definitely need to know something about server cabinets, or you also need to understand them.

For example, when we choose a server cabinet, we will definitely see the so-called 1U, 2U, 42U and other concepts. What do these mean? Today we will take a look at the concept of server cabinet size and how many hardware servers can be placed in it.

First, initialization understanding

For example, we see the concepts of 1U, 2U, and 3U. What does the U mean? What do the previous values ​​represent? u (abbreviation for unit) is a unit that represents the external dimensions of a combined rack.

1U=4.45cm; 2U=8.9cm; 3U=4.45cm * 3; 4U=4.45cm * 4

We can actually see that most servers are divided into 1U, 2U, and 4U. The most popular servers on the market now are 1U and 2U. So which one is the best? In fact, there is no best product, only the most suitable product. Each product has its own characteristics. As long as we fully understand the product and our own needs, we can easily choose the most suitable machine.

Second, conceptual understanding of conventional 42U cabinets

The 42U cabinet is a type of standard cabinet. The u in the name represents the external dimensions of the server and is also the abbreviation of unit. Its detailed dimensions are determined by the American Electronics Industry Association. The panels of the standard equipment of the 42U standard cabinet are generally manufactured according to the specifications of n u.

This search found it from the Weakness Industry Network. 42U is a server cabinet that is 2 meters high, 0.6 meters wide and 0.8 meters deep, or it may be 2 meters high, 0.6 meters wide and 0.96 meters deep.

If we want to put servers, a 42U standard cabinet can generally hold 18 or 20 servers. Of course, we also need to reserve space for cooling. Here we introduce the general cabinet sizes and 42U standard server cabinet sizes. In fact, we can also customize cabinets with different widths and depths according to user business needs.

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