Blade server
A blade server combines the hardware of the computer server, such as a processor, a memory and a network connection, in one extension card, also known as one server blade. A blade server is a variation on the computer server architecture. In the blade server format, each server system is configured to be present in a compact package known as a "blade" or a "server blade" which can be inserted in a chassis along with a number of other blades. Typically in a blade architecture, a blade card or a server blade may be a single board which contains the core components of a server. These core components may include devices, such as a chipset, a processor and a basic input output system (BIOS) image. The server blades are inserted in a connecting base in a blade server system. Therefore, after the user buys the required server blades and inserts the server blades in the connecting base, the servers new inserted can work immediately. Each server blade works independently from other server blades. When the user needs more servers, the user needs only to insert additional server blades into the connecting base. The blade server has a higher calculation capacity and higher stability, and occupies less space than a traditional computer server. The blade server reduces the cost and the working temperature. A plurality of blade servers may work in one casing which is similar in size to one conventional server. The blade server system needs peripheral devices, such as a keyboard, a video monitor and a mouse, to control the blade servers therein. An internal or an external KVM switch is used for a blade server system to reduce the quantity of the peripheral devices. In a rack-mounted server blade environment, the ability to hot plug server blades is a standard feature. Hot plugging refers to the ability to install and remove a blade without turning off power to the cabinet.
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