Abstract: The cooling arrangement for a server rack for accommodating a plurality of plug-in components includes a vertically running coolant air channel, having a plurality of air intake openings and a common exhaust air opening. Air intake openings can each be connected to an air outlet opening of a plug-in component, whereby the corresponding air intake opening is assigned to plug-in component. Air intake openings each have a throttle element for varying their air passage cross section.

Abstract: The invention relates to a cooling arrangement with a first and at least one second heat-creating computer component, each coupled to at least one heatsink (40, 50). Heatsinks (40, 50) are arranged one after the other in a plane (10) in the direction of a provided coolant air stream (30). The cooling arrangement is distinguished in that heatsinks (40, 50) are of identical construction, and each heatsink (40, 50) comprises at least two side-by-side areas (41, 42, 51, 52) with heat transfer properties different from one another. In addition, heatsinks (40, 50) are arranged in plane (10) rotated relative to one another in such a manner that areas (42, 52) of heatsinks (40, 50) with a higher respective heat transfer power than the adjacent area (41, 51) are arranged one after the other in the direction of coolant air stream (30).

Abstract: A backup and archiving system utilizing tape cassettes avoids bottlenecks at a higher performance level that may be caused by a central working storage, especially during backup and archiving procedures. Such a backup and archiving system provides a distributed hardware architecture in which several Component Computers work without reciprocal obstruction.