Patent ID: 6581135
Filing Date: 2003-06-17
Classification: G06F

Abstract:
An information storage system for storing information, comprising:a plurality of information storage devices; a division processing unit dividing the information to be stored in the information storage devices and distributing the divided information to said information storage devices; and a division control unit controlling said division processing unit so as to divide the information in accordance with a number of said information storage devices, wherein, when the number of said information storage devices is increased or decreased, said division control unit controls said division processing unit so that the information stored in said information storage devices is automatically divided by a dividing method suitable for the number of said information storage devices after being increased or decreased, and the divided information is automatically redistributed to the number of said information storage devices after being increased or decreased; wherein said division control unit controls said division processing unit so that, when the number of said information storage devices is increased or decreased, the information previously stored in said information storage devices that is read from said information storage devices is divided in accordance with the dividing method suitable for the increased or decreased number of said information storage devices and redistributed to the number of said information storage devices after being increased or decreased when the previously stored information is read from said information storage devices.