Knowledge about the server

At present, according to the shape structure division, the server can be divided into tower, rack-type, blade type three types.

Tower-Type Server

The general Tower server chassis is similar to our common PC chassis, and large tower chassis will be much larger, in general, there is no fixed standard size.

Rack-Type Servers

The rack server is a server type with a 19-inch rack as the standard width and a height of 1U to 4U due to the intensive deployment of the enterprise. Placing the server on the rack is not only conducive to day-to-day maintenance and management, but also may avoid unexpected failures. First, the place server does not occupy too much space. Rack servers are neatly emitted in racks and do not waste space. Second, the wiring can also be neatly retractable into the rack. The power cord and LAN wire can all be in the cabinet, can reduce the wiring in the ground, so as to prevent the kick off the wire and other accidents occurred.

The specified size is the width of the server (48.26cm=19 inches) and the height (multiples of 4.445cm). Due to the width of 19 inches, it is sometimes also required to meet this requirement of the rack called "19 inch rack".

Blade Server

The blade server is a Low-cost server platform for HAHD (high availability height density, highly available high-density) designed specifically for special applications and high-density computer environments, where each "blade" is actually a system motherboard, Similar to a separate server. In this mode, each motherboard runs its own system, serving a specified set of different user groups, with no association to each other. However, you can use system software to assemble these boards into a single server cluster. In cluster mode, all the motherboard can be connected to provide a high-speed network environment, you can share resources for the same user group services.