Importance

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Abstract

A computer system adapted for hot-pluggable components such as memory modules that may be replaced, upgraded and/or added without disturbing normal operation of the computer system. A failing memory module may be replaced by copying its contents to a new memory module in a background operation while the computer system runs its operating system and applications programs. When all contents are copied to the new memory module, the failing memory module may be removed without having to shut down the computer system. Computer system memory may be upgraded or added to by inserting the new memory module(s) into vacant disconnected memory connectors, whereupon the computer system automatically recognizes the new memory module(s), synchronously connects the new memory module(s) to the computer system memory bus, initializes the new memory module(s), and then notifies the operating system that the new memory module(s) is available, all without disturbing normal operation of the computer system.

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First Claim