Virtual computer system, virtual computer system control method, and virtual computer system control program

摘要

A virtual machine system including one or more virtual machines and an operation stop device for stopping an operation of the virtual machine, wherein the virtual machine is a process that uses the device and is virtual until completion after the start of execution. There is an output unit that outputs a stop non-permission signal indicating that the operation stop of the own virtual machine is not permitted during the period during which the stop non-permission process, which is a process for which the operation stop of the computer is not permitted, is being executed. Then, the operation stopping device stops the operation of the virtual machine for which the stop non-permission signal is not output and does not stop the operation of the virtual machine for which the stop non-permission signal is output. Stop.