Patent ID: 6282672
Filing Date: 2001-08-28
Classification: G06F,Y10S

Abstract:
A data processing system comprising:a first external storage device;a controller for controlling a data input/output operation with said external storage device;a processing unit for instructing said controller to perform a data input/output operation; andmeans for duplicating data in said first external storage device,wherein a static data input/output controller is provided in said processing unit to control a data input/output request to said first external storage device from which the data is duplicated by said duplicating means and a data input/output request to a second external storage device into which the duplicated data is stored, andwherein said static data input/output controller determines which of a plurality of applications that issued a data input/output request, and executes a data input/output request issued by a first application on one of the first and second external storage devices and a data input/output request issued by a second application on the other of the first and second external storage devices.