Patent ID: 7031988

Claim:
A method for displaying the amount of storage use in a computer system in which servers comprising a plurality of file systems and storage subsystems each including a plurality of volumes and a mechanism configured to copy an internal volume to a specific volume are connected via a network, the method comprising the steps of: acquiring, by said servers, a list of said file systems composing said servers, the capacity and amount-of-use information about said file systems, and names of said plurality of volumes which are connected to said list of file systems; acquiring from said storage subsystem, by said servers, a list of volumes composing said storage subsystems, the information about the capacity of each volume of said list of volumes composing said storage subsystems, a configuration of each of intra-volume copy operations performed within said storage subsystems, and a configuration relating to copy operations performed between said storage subsystems; collecting, by a special server, which is one of said servers, said information collected by the other servers; and defining, by said special server, association among various items of information collected according to said copy operation and displaying, by said special server, a list of said storage subsystems used by a specified server or file system, the total volume capacity, and the amount of volume use on a display device of said special server or other server; wherein said special server predicts a future capacity of said specified file system in accordance with an increase/decrease during a specific period, and displays a disk capacity that is required for each of said storage subsystems within the current configuration when the capacity of said file system is to be changed to said predicted capacity.