STORAGE MANAGEMENT SYSTEM

摘要

Provided is a storage management system for managing a file storage system providing a plurality of storage layers. The storage management system keeps I/O history information indicating an I/O history with respect to each of a plurality of files located in the file storage system. The storage management system determines a relocation rule for the plurality of files in each of a plurality of past days using the I/O history information, estimates a response time for each day assuming a file location in accordance with the relocation rule for each day, and displays a transition of an estimated response time over a plurality of days on the input/output device.