This seems to make sense ...

(whatis.com)

A blade server is a thin, modular electronic circuit board, containing one, two, or more microprocessors and memory, that is intended for a single, dedicated application (such as serving Web pages) and that can be easily inserted into a space-saving rack with many similar servers. One product offering, for example, makes it possible to install up to 280 blade server modules vertically in multiple racks or rows of a single floor-standing cabinet. Blade servers, which share a common high-speed bus, are designed to create less heat and thus save energy costs as well as space. Large data centers and Internet service providers (ISPs) that host Web sites are among companies most likely to buy blade servers.
A blade server is sometimes referred to as a high-density server and is typically used in a clustering of servers that are dedicated to a single task, such as:

File sharing
Web page serving and caching
SSL encrypting of Web communication
The transcoding of Web page content for smaller displays
Streaming audio and video content
Like most clustering applications, blade servers can also be managed to include load balancing and failover capabilities. A blade server usually comes with an operating system and the application program to which it is dedicated already on the board.

Individual blade servers are usually hot-pluggable and come in various heights, including 5.25 inches (the 3U model), 1.75 inches (1U), and possibly "sub-U" sizes. (A U is a standard measure of vertical height in an equipment cabinet and is equal to 1.75 inches.)

Posted By: roywallerslovechild on June 9th 2005 at 13:05:28

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