Abstract: Provided is a computer system including a host computer, a storage system connected to the host computer via a network, and a management computer connected to the host computer and the storage system. The management computer obtains performance information indicating performance of resources contained in at least one of the host computer, the storage system, and the network, and obtains pieces of performance information of the resources in a sequence set based on already obtained performance information. This permits solving a problem of the computer system that, when the amount of performance information to be obtained is large. A long time is necessary for detecting a performance problem based on the performance information and investigating its causes.

Abstract: To solve a problem in that reliable detection of a performance problem caused by a configuration change needs detailed performance information, which is costly to keep and analyze, a management computer which manages a computer system having a host computer and a storage system is provided. The management computer is configured to: store performance information obtained from resources that belong to paths at first time intervals until a predetermined length of time elapses since the detection of an addition or removal of the resources to the paths; store performance information obtained from the resources that belong to the paths at second time intervals, which are longer than the first time intervals, without storing performance information obtained from the resources that belong to the paths at the first time intervals after the predetermined length of time elapses since the detection of the addition or removal of the resources to the paths.

Abstract: To solve a problem in that reliable detection of a performance problem caused by a configuration change needs detailed performance information, which is costly to keep and analyze, a management computer which manages a computer system having a host computer and a storage system is provided. The management computer is configured to: store performance information obtained from resources that belong to paths at first time intervals until a predetermined length of time elapses since the detection of an addition or removal of the resources to the paths; store performance information obtained from the resources that belong to the paths at second time intervals, which are longer than the first time intervals, without storing performance information obtained from the resources that belong to the paths at the first time intervals after the predetermined length of time elapses since the detection of the addition or removal of the resources to the paths.

Abstract: Provided is a computer system including a host computer, a storage system connected to the host computer via a network, and a management computer connected to the host computer and the storage system, in which the management computer obtains performance information indicating performance of resources contained in at least one of the host computer, the storage system, and the network, and obtains pieces of performance information of the resources in a sequence set based on the already obtained performance information, to thereby solve, a problem of the computer system that when the amount of performance information to be obtained is large, long time is necessary for detecting a performance problem based on the performance information and investigating its causes.