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    • 3. 发明授权
    • Method of shutting down virtual machines in an orderly manner
    • 以有序的方式关闭虚拟机的方法
    • US07254733B2
    • 2007-08-07
    • US10370210
    • 2003-02-18
    • Stephen Richard NicholsDamian Leo OsisekWilliam Romney White
    • Stephen Richard NicholsDamian Leo OsisekWilliam Romney White
    • G06F1/26
    • G06F9/45558G06F2009/45575
    • A technique for shutting down virtual machines in a computer system which comprises a real computer and a virtual machine operating system. The virtual machine operating system comprises a common base portion and a plurality of virtual machines sharing the common base portion. According to one feature of the present invention, the common base portion receives a shutdown signal from the real computer. The shutdown signal specifies a time period for shutdown of the common base portion or the virtual machine operating system. Next, the common base portion determines a time period for shutdown of the virtual machines by subtracting a time required to shutdown the common base portion from the specified time period. Next, the common base portion sends requests to the virtual machines to shut down in an orderly manner within the time period determined for shutdown of the virtual machines. The common base portion determines when and if each of the virtual machines shuts down in an orderly manner. If all of the virtual machines shut down in an orderly maimer before the time period determined for shutdown of the virtual machines lapses, before lapse of the time specified in the shutdown signal from the real computer, the common base portion shuts itself down. However, if all of the virtual machines do not shut down in an orderly manner before the time period determined for shutdown of the virtual machines lapses, upon lapse of said time period determined for shutdown of the virtual machines, the common base portion shuts itself down. The shutting down of the common base portion disrupts any of the virtual machines that did not shut down in an orderly manner. The shutdown can also be initiated by a user at or an application running on one of the virtual machines.
    • 一种用于关闭计算机系统中的虚拟机的技术,其包括真实计算机和虚拟机操作系统。 虚拟机操作系统包括共用基础部分和共享共同基础部分的多个虚拟机。 根据本发明的一个特征,公共基部接收来自真实计算机的关闭信号。 关闭信号指定用于关闭公共基础部分或虚拟机操作系统的时间段。 接下来,公共基部通过从指定的时间段减去关闭公共基部所需的时间来确定虚拟机关闭的时间段。 接下来,公共基本部分在虚拟机的关闭确定的时间段内向虚拟机发送请求以有序地关闭。 公共基础部分确定每个虚拟机何时以及是否以有序的方式关闭。 如果所有虚拟机在虚拟机关闭确定的时间段失效之前关闭,在经过实际计算机的关机信号指定的时间之前,共同的基本部分自身关闭。 然而,如果所有虚拟机在为虚拟机的关闭确定的时间段失效之前没有以有序的方式关闭,则在经过为虚拟机关闭确定的所述时间段之后,公共基本部分自身关闭 。 关闭公共基础部分会破坏任何没有以有序方式关闭的虚拟机。 关闭也可以由在其中一个虚拟机上运行的用户或应用程序启动。