Management arrangements receiving plural failure information from plural host computers for a predetermined period; storing the failure information; extracting one or more of the plural failure information, received from a first host computer among the plural host computers; retrieving the failure information about one path from the extracted failure information, about multiple paths; registering the first host computer via refresh information in the memory, refresh information indicating a host computer of which path information is to be updated; sending a request to the first host computer to acquire a status of a first path of the first host computer; updating a first path information in the plurality of path information of the first host computer, based on the status; and deleting the one or more of the plurality of failure information of the extracting from the failure reception information.