Patent ID: 8010490

Claim:
A management apparatus for managing a remote copy, which is a data copy from a first data volume of a first storage system to a second data volume of a second storage system, the management apparatus comprising: a monitoring unit for either regularly or irregularly acquiring a resource status value showing a resource status of a resource to be utilized in a remote copy conforming to a copy mode configured for a copy unit created from the first data volume and the second data volume; a determination unit for determining whether or not the acquired resource status value exceeds a prescribed threshold; an action unit, which, when determination is made that the acquired resource status value exceeds the prescribed threshold, executes either a resource expansion process for increasing the resource to be used at the time of a remote copy, which conforms to the configured copy mode, or a copy mode change process for changing the configured copy mode to a different copy mode; wherein the prescribed threshold comprises a prescribed first threshold, and a prescribed second threshold, which is at a lower level than the prescribed first threshold; and the action unit executes either the resource expansion process or the copy mode change process when the resource status value of the resource is determined to exceed the first threshold, or when the resource status value of the resource is determined not to exceed the first threshold, but the number of overruns, which is the number of times that the resource status value of the resource is determined to exceed the second threshold, exceeds a prescribed number of times.