"Blades servers are basically servers stripped down to the power essentials," notes
Drew Robb in
"Their modular design minimizes physical space and energy requirements. A great many blades can be housed inside a blade enclosure. While a typical rack can house up to 42 units (42U), you can pack many hundreds of blades into a similar space.
Little more than thin circuit boards, each blade server can be dedicated to one application or many. They focus on an element such as compute power at the expense over other elements. A common blade architecture is to group as many CPUs as possible into the available space and either have very little storage, or skip having any storage at all - storage, after all, tends to be bulky..."
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