Patent ID: 7577815

Claim:
A processor apparatus connected to a storage apparatus system including more than two physical disk devices for storing data in a plurality of logical disk devices, and a control device, connected with a data processing device and said more than two physical disk devices, for receiving an access request from said data processing device to said logical disk devices and controlling said logical disk devices, wherein the data is sequential on said logical disk devices and said control device (1) re-arranges first logical disk devices on one or plurality of first physical disk devices on one or plurality of second physical disk devices by a unit including said first logical disk devices, stores sequentially all the data which is stored in said first logical devices, in said one or plurality of second physical disk devices as destinations of the rearrangement, (2) re-arranges second logical disk devices on said one or plurality of second physical disk devices, on said one or plurality of first physical disk devices by a unit including said second logical disk devices, and stores sequentially all the data which is stored in said second logical disk devices in said one or plurality of first physical disk devices as destinations of the rearrangement, wherein said processor apparatus provides access information detected by said control device and relative to an access to said logical disk devices from said data processing device, and receives an input of indication information for indicating said first logical disk devices and second logical disk devices as objects of the rearrangement and indicates the indication information to said storage apparatus system.