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AssigneeHitachi, Ltd.
InventorTakayuki Nakano
Estimating the term…
A computer managing system includes an active system computer having a heart beat transmission processing unit for transmitting a heart beat signal indicating that an active system computer is being operated in normal to a spare system computer, and transmitting the heart beat signal to a first control unit; a spare system computer including a monitor request processing unit for transmitting a monitoring request of the active system computer to the first control unit in accordance with a determination result of whether or not a fault has occurred in the active system computer; and the first control unit including a heart beat transmit instruction processing unit for instructing a transmission of the heart beat signal to the first control unit, to the active system computer, when receiving the monitoring request from the spare system computer.
A method of changing over in a multiplex system including a first computer and a second computer each having a processing unit for monitoring a fault of said first computer and said second computer by transmitting and receiving a heart beat signal to and from each other, and a disk control unit for controlling a disk enabled a setting of an access right to one of said first and second computers, comprising the steps of:
A computer managing system comprising:
A computer readable program recording medium, said program comprises:
Dependencies are inferred from the claim text.