MANAGEMENT SYSTEM AND MANAGEMENT METHOD FOR COMPUTER SYSTEM WHICH INCLUDES REMOTE COPY SYSTEM FOR IMPLEMENTING ASYNCHRONOUS REMOTE COPY

摘要

This management system has management information. The management information includes a plurality of delay time lengths, each delay time length being associated with one of a plurality of times of day, and also includes a plurality of metric values for a primary volume, each metric value being associated with one of a plurality of times of day. On the basis of the management information, the management system displays a delay time length graph (521), which represents a delay time length as a function of elapsed time, and an average written amount graph (524), which represents an average written amount as a function of elapsed time, in such a manner that these graphs can be compared with each other. The average written amount is the amount of data written to the primary volume divided by the number of write requests.