Duplication control system for disk device

摘要: PURPOSE: To reduce labor for changing software by inspecting writing operation in a duplicated disk device deciding whether written control information is left without being deleted or not. CONSTITUTION: When write request inputted, means 127 stores relating to storing 123 and commands 125 data. The writes data stored 131 two devices 111, 113 accordance with the command. completed, prior deleting 129. Thus inspected can be reduced. COPYRIGHT: (C)1991,JPO&Japio