Patent ID: 8812642

Claim:
A computer system comprising: one or more storage devices comprising one or more physical resources and one or more storage regions constituted by the physical resources; one or more host computers comprising one or more storage regions allocated from the storage devices; and a management computer configured to manage the one or more storage devices and the one or more host computers, wherein the management computer is configured to acquire configuration information in two stages: (i) in a first stage, acquiring constituent element basic configuration information including at least identifiers of constituent elements indicating resources of the storage devices and the host computers as well as correspondence relationships between the constituent elements, and (ii) in a second stage, after the acquisition of the constituent element basic configuration information, acquiring detailed configuration information corresponding to the constituent element basic configuration information, based on a detailed information acquisition rule indicating a plurality of acquisition conditions and a plurality of acquisition methods for acquiring the detailed configuration information of the constituent elements that changes as the system is operated, wherein the detailed information acquisition rule is constituted by combinations of the plurality of acquisition conditions and the plurality of acquisition methods corresponding to the acquisition conditions, wherein information of the acquisition methods includes information related to a range and timing of acquiring the detailed configuration information, and wherein, in the acquiring of the detailed configuration information, the management computer is configured to: determine, for each of the plurality of acquisition conditions, whether there is the constituent element satisfying the acquisition condition; and acquire, in response to the determination that there is the constituent element satisfying the acquisition condition, the detailed configuration information of the constituent element at the timing and for the range indicated in the information of the corresponding acquisition method.