1. A computing system in which a plurality of OSs run on hardware of one computer, said computing system comprising: management agents that are respectively executed on the OSs, to manage said OSs; a partitioning control unit that holds partition configuration information indicating a relation between each OS and the hardware, and controls allocation of the hardware to each OS; and a hardware data collection unit that collects data on said hardware; wherein: said computing system uses said partition configuration information to perform hardware management for each OS.