COMPUTER SYSTEM, BUS INTERFACE AND ITS CONTROLLING METHOD

摘要

PROBLEM TO BE SOLVED: To prevent beforehand the generation of faults, such as disappearance and destruction of data, when the equipment ID data of plural pieces of equipment mutually connected through an SCSI are competed with each other. SOLUTION: When the equipment ID for a 2nd host computer or subsequent thereof competes with the equipment ID of another equipment connectable to a SCSI, a reset signal (RST) is inputted to an SCSI control bus input of the other equipment which compete with the host computer. The judgment of competition is detected, depending on whether the terminal power of the 2nd host computer 1 or subsequent thereof is active.