Quais são os tamanhos padrão de racks de servidor?

We often say how many U cabinets are used, so what is the concept of U? The following small series will summarize some problems about cabinet size for you. U is a unit of server external dimensions, which is an abbreviation of unit. The detailed dimensions are determined by the American Electronics Industry Association (EIA), which is an industry group. The reason for specifying the size of the server is to keep the server in an appropriate size so that it can be placed on an iron or aluminum rack. The rack is provided with screw holes for fixing the servers, so that it can be aligned with the screw holes of the servers, and then fixed with screws to facilitate the space needed for installing each server. The specified dimensions are the width (48.26 cm = 19 polegadas) and height (multiple of 4.445cm) of the server. Because the width is 19 polegadas, the rack that meets this requirement is sometimes called “19-rack de polegada”. Thickness is 4.445cm, and 1U is 4.445cm ..

I. Size of 19-inch standard cabinet:
The equipment installation height in the 19-polegada standard cabinet is expressed by a special unit “você”, com 1U=44,45mm U refere-se ao espaço de uso efetivo dentro do gabinete, e os painéis dos equipamentos padrão usando gabinetes padrão de 19 polegadas são geralmente fabricados de acordo com as especificações da n u. Para alguns equipamentos não padronizados, a maioria deles pode ser instalada e fixada em um chassi de 19 polegadas por meio de defletores adaptadores adicionais. A largura do painel da maioria dos equipamentos de engenharia é 19 polegadas, e a distância do furo de instalação é 465 milímetros. Portanto, contanto que o gabinete possa atender aos requisitos de instalação da maioria dos equipamentos de 19 polegadas, o gabinete é um gabinete padrão.

The 19-inch standard cabinet has three general indexes: width, height and depth. The physical width of the cabinet is usually 600mm and 800 milímetros. Geralmente, the height is from 0.7M2.4M, which depends on the number of equipment in the cabinet and uniform style. Usually, manufacturers can customize special heights. The common finished 19-inch standard cabinets are 1.6M, 1.8M and 2M in height. Geralmente, the depth of the cabinet ranges from 600mm to 1000 milímetros, depending on the size of the equipment in the cabinet. Usually, manufacturers can customize products with special depth. The common finished 19-inch standard cabinets have depths of 600 milímetros, 700milímetros, 800mm and 900 milímetros. The structure of 19 “standard cabinet is relatively simple, mainly including basic frame, internal support system, wiring system and ventilation system. 2. o “U” e “19-polegada” U of electronic standard cabinet are a unit for expressing the external dimensions of the server, which is an abbreviation of Unit. The detailed dimensions are determined by the American Electronics Industry Association (EIA), which is an industry group. 1U=44.45mm=1.75 inches, 1 inch = 25.4mm 19 = inches, 482.6mm The reason for specifying the size of the server is to keep the server in an appropriate size so that it can be placed on an iron or aluminum rack. The rack is provided with screw holes for fixing the servers, so that it can be aligned with the screw holes of the servers, and then fixed with screws to facilitate the space needed for installing each server. The specified dimensions are the width (48.26 cm = 19 polegadas) and height (multiple of 4.445cm) of the server. Because the width is 19 polegadas, the rack that meets this requirement is sometimes called “19-rack de polegada”. The thickness is 4.445cm as the basic unit. 1U is 4.445cm, and 2U is 8.89cm which is twice as large as 1U. The 19-inch standard cabinet 19 represents the width, isso é, the cabinet where the 19-inch rack-mounted server can be placed. The cabinet is also divided into U degrees and depth; Geralmente, the height is 42U, and 1U and 19 inches here are industrial standards formulated by EIA. The structure of standard cabinet is relatively simple, mainly including basic frame, internal support system, wiring system and ventilation system. The 19-inch standard cabinet has three general indexes: width, height and depth. Although the installation width of 19-inch panel equipment is 465.1mm, the physical width of cabinets is 600mm and 800mm. Geralmente, the height ranges from 0.7M-2.4M, and the heights of common finished 19-inch cabinets are 1.6M and 2M. Geralmente, the depth of cabinet ranges from 450mm to 1000mm, depending on the size of equipment in cabinet. Usually, manufacturers can customize products with special depth. The common finished 19-inch cabinets have depths of 450mm, 600milímetros, 800milímetros, 900mm and 1000mm. A altura de instalação do equipamento no gabinete padrão de 19 polegadas é expressa por uma unidade especial “você”, with 1U=44.45mm Equipment panels using 19-inch standard cabinets are generally manufactured according to nU specifications. Para alguns equipamentos não padronizados, a maioria deles pode ser instalada e fixada em um chassi de 19 polegadas por meio de defletores adaptadores adicionais. The panel width of many engineering equipment is 19 polegadas, so the 19-inch cabinet is the most common standard cabinet. 42U refers to the height, 1U=44.45mm,42u The cabinet of 42u can’t hold 42 1U servers, but it is normal to put 10-20 servers, because they need to radiate heat at intervals of 19 polegadas, which is 482.6mm wide (there are “ears” on both sides of the equipment, and the mounting hole distance of the ears is 465mm). The depth of the equipment is different, and the national standard does not specify how much the depth must be, so the depth of the equipment is determined by the equipment manufacturer. Portanto, there is no 1U cabinet, only 1U equipment, and there are 4U–47U cabinets, isso é, a 42U cabinet can theoretically install 42 1U high equipment, but in practice it is normal to put 10-20 equipment, because they need to dissipate heat at intervals.