Patent ID: 7277821
Filing Date: 2007-10-02
Classification: G06F

Abstract:
1. A storage network performance information collecting and storing method for collecting and storing performance information on resources of a storage network having a network device that is placed between a first and second computers and a storage system for transaction and reception of input/output data, comprising: a performance information collecting step of collecting and storing performance information from collection subject components that are chosen in advance out of resources consisting of the storage network, the storage system, and the first and second computers; a performance dependence relation information collecting step of collecting and storing information on a performance dependence relation between the collection subject components; an application performance deterioration period detecting step of collecting and storing a performance deterioration period of a first application executed in the first computer; a first dependence-relation-during-performance-deterioration detecting step of detecting a first collection subject components that have been in a performance dependence relation with the first application whose performance has been deteriorated during the detected application performance deterioration period; an application-during-performance-deterioration detecting step of detecting the second application that has been in a performance dependence relation with the first collection subject components, the second application being executed in the second computer; a second dependence-relation-during-performance-deterioration detecting step of detecting a second collection subject components that have been in a performance dependence relation with the second application whose performance has been deteriorated during the detected application performance deterioration period; a preservation period setting step of setting a second preservation period longer than a normal preservation period for performance information of the first and second collection subject components detected in the first and second dependence-relation-during-performance-deterioration detecting steps and setting the normal preservation period for performance information of other resources than the detected components; and a deleting step of deleting performance information that has passed one of the normal preservation period and the second preservation period.