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    • 3. 发明授权
    • Streaming virtual machine boot services over a network
    • 通过网络流式传输虚拟机引导服务
    • US08560825B2
    • 2013-10-15
    • US12827169
    • 2010-06-30
    • Eric K. ButlerMihail Corneliu ConstantinescuReshu JainPrasenjit SarkarAameek Singh
    • Eric K. ButlerMihail Corneliu ConstantinescuReshu JainPrasenjit SarkarAameek Singh
    • G06F9/00
    • G06F9/45558G06F9/4416G06F2009/45575
    • Embodiments of the invention are directed to streaming virtual machine boot services over a network. An aspect of the invention includes booting a first virtual machine and recording data and metadata from a virtual machine boot image into a virtual machine boot file. The data and metadata are accessed in the process of booting the first virtual machine. The virtual machine boot image has setup information of the virtual machine type of the first virtual machine. The virtual machine boot file is configured for the virtual machine type of the first virtual machine. A descriptor is added to metadata of the virtual machine boot image, which references a location of the virtual machine boot file for the virtual machine type of the first virtual machine. When subsequently booting a second virtual machine of the same type of virtual machine as the first virtual machine, data are streamed from the virtual machine boot file to a virtual machine monitor of a second virtual machine without the need to stream data from the virtual machine boot image.
    • 本发明的实施例涉及通过网络流式传输虚拟机引导服务。 本发明的一个方面包括引导第一虚拟机并将数据和元数据从虚拟机引导映像记录到虚拟机启动文件中。 在引导第一个虚拟机的过程中访问数据和元数据。 虚拟机引导映像具有第一虚拟机的虚拟机类型的设置信息。 为第一个虚拟机的虚拟机类型配置虚拟机引导文件。 将描述符添加到虚拟机引导映像的元数据,虚拟机引导映像引用虚拟机引导文件的位置,用于第一个虚拟机的虚拟机类型。 当随后引导与第一虚拟机相同类型的虚拟机的第二虚拟机时,将数据从虚拟机引导文件流式传输到第二虚拟机的虚拟机监视器,而不需要从虚拟机引导中流式传输数据 图片。
    • 7. 发明申请
    • MIGRATING VIRTUAL MACHINES ACROSS NETWORK SEPARATED DATA CENTERS
    • 跨网络分离数据中心的移动虚拟机
    • US20120042033A1
    • 2012-02-16
    • US12856019
    • 2010-08-13
    • Richard J. Ayala, JR.Eric K. ButlerKavita ChavdaMihail C. ConstantinescuReshu JainPrasenjit SarkarAameek Singh
    • Richard J. Ayala, JR.Eric K. ButlerKavita ChavdaMihail C. ConstantinescuReshu JainPrasenjit SarkarAameek Singh
    • G06F15/167G06F15/173
    • G06F9/4856
    • Embodiments of the present invention provide an approach for migrating virtual machines across network (e.g., WAN) separated data centers (e.g., storage clouds). Specifically, under embodiments of the present invention, a first storage system associated with a first data center is synchronized with a second storage system associated with a second data center via a storage system link. Then, a minimal state of a virtual machine is migrated from a first computer in the first data center to a second computer in the second data center via a WAN link. Using the minimal state, the virtual machine is stored in the second computer. Thereafter, the storage system link is terminated. In addition, as updated pages are received in memory of the first computer, they are migrated to the second computer via the WAN link. Once this migration is complete, the WAN link can be terminated. Therefore, embodiments of the present invention provide at least two forms of synchronization: computational synchronization and storage synchronization.
    • 本发明的实施例提供了一种用于跨网络(例如,WAN)分离的数据中心(例如,存储云)迁移虚拟机的方法。 具体地,在本发明的实施例中,与第一数据中心相关联的第一存储系统经由存储系统链路与与第二数据中心相关联的第二存储系统同步。 然后,通过WAN链路将虚拟机的最小状态从第一数据中心的第一计算机迁移到第二数据中心中的第二计算机。 使用最小状态,虚拟机存储在第二台计算机中。 此后,终止存储系统链路。 另外,随着在第一台计算机的存储器中接收到更新的页面,它们将通过WAN链路迁移到第二台计算机。 迁移完成后,可以终止WAN链路。 因此,本发明的实施例提供至少两种形式的同步:计算同步和存储同步。