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    • 3. 发明授权
    • Persistent memory device for backup process checkpoint states
    • 用于备份过程检查点状态的持久性内存设备
    • US09213609B2
    • 2015-12-15
    • US10737374
    • 2003-12-16
    • Roger HansenPankaj MehraSam Fineberg
    • Roger HansenPankaj MehraSam Fineberg
    • G06F11/20G06F11/14
    • G06F11/2046G06F11/1471G06F11/2038G06F11/2097
    • A system is described that includes a network interface attached to a persistent memory unit. The persistent memory unit is configured to receive checkpoint data from a primary process, and to provide access to the checkpoint data for use in a backup process, which provides recovery capability in the event of a failure of the primary process. The network interface is configured to provide address translation information between virtual and physical addresses in the persistent memory unit. In other embodiments, the persistent memory unit is capable of storing multiple updates to the checkpoint state. The checkpoint state and the updates to the checkpoint state, if any, can be retrieved by the backup process periodically, or all at once upon failure of the primary process.
    • 描述了包括连接到持久存储器单元的网络接口的系统。 持久存储器单元被配置为从主处理接收检查点数据,并且提供对检查点数据的访问以用于备份过程,其在主处理失败的情况下提供恢复能力。 网络接口被配置为在持久存储器单元中的虚拟和物理地址之间提供地址转换信息。 在其他实施例中,持久存储器单元能够存储对检查点状态的多个更新。 检查点状态和检查点状态的更新(如果有的话)可以由备份进程定期检索,或者在主进程失败时一次检索。