Patent ID: 8060478
Filing Date: 2011-11-15
Classification: G06F

Abstract:
1. A storage system, comprising: one or more storage apparatuses; one or more host computers for reading and writing data from and into the one or more storage apparatuses; and a management computer for managing the one or more host computers; wherein the one or more storage apparatuses respectively include: one or more disk devices for storing data; and a plurality of volumes configured from a storage area provided by the one or more disk devices; wherein the one or more host computers manage configuration information of a volume group configured from a prescribed number of volumes among the plurality of volumes; wherein the management computer detects the status of a configuration change of a volume group by using the configuration information of the volume group and, upon detecting a configuration change, changes the configuration of a monitoring condition of the volume group based on the configuration of the monitoring condition according to the pre-set configuration of the volume group; wherein the configuration of the volume group is a copy pair configuration where one volume among the plurality of volumes is set as a primary volume to be subject to data writing from one of the one or more host computers, and a volume that is not the primary volume is set as a secondary volume to become a copy destination of the data written into the primary volume; wherein the configuration information includes status information showing the status of the copy pair; wherein the status information includes information concerning a threshold value for restricting the accumulation of data of a journal volume to be used in temporarily accumulating data upon performing the copy asynchronously; and wherein the management computer changes the threshold value of the journal volume upon detecting the configuration change.