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1. 发明申请

WO2016114921A1 CHANGE TRACKING USING REDUNDENCY IN LOGICAL TIME 审中-公开
标题翻译：在逻辑时间内使用冗余更改跟踪
公开(公告)号：WO2016114921A1
公开(公告)日：2016-07-21
申请号：PCT/US2015/067761
申请日：2015-12-29
申请人： MICROSOFT TECHNOLOGY LICENSING, LLC
发明人： STARKS, John , BEZBARUAH, Angshuman
IPC分类号： G06F11/14 , G06F11/10
CPC分类号： G06F11/1402 , G06F11/1004 , G06F11/1048 , G06F11/1448 , G06F11/1451
摘要： Tracking changes amongst unit portions (e.g., blocks or files) of a storage system. A logical time identifier is associated with each unit portion and is included within a logical time identifier structure. When writing to a particular write portion, the mechanism updates the appropriate logical time identifiers, calculates redundancy data of a group of one or more logical time identifiers associated with the unit portion(s) of the write portion. Furthermore, the write portion of the storage system is written. In addition, the corresponding redundancy data for that write portion is written to the logical time identifier structure. Later, for a given write portion, the redundancy data is verified to be consistent or inconsistent with the group of one or more logical time identifiers associated with the write portion. If the redundancy data is not consistent, then a current logical time identifier is assigned to each of the logical time identifiers.
摘要翻译：跟踪存储系统的单元部分（例如，块或文件）之间的变化。逻辑时间标识符与每个单元部分相关联并且被包括在逻辑时间标识符结构内。当写入特定写入部分时，机构更新适当的逻辑时间标识符，计算与写入部分的单元部分相关联的一个或多个逻辑时间标识符的组的冗余数据。此外，写入存储系统的写入部分。此外，将该写入部分的对应的冗余数据写入逻辑时间标识符结构。之后，对于给定的写入部分，冗余数据被验证为与与写入部分相关联的一个或多个逻辑时间标识符的组一致或不一致。如果冗余数据不一致，则将当前逻辑时间标识符分配给每个逻辑时间标识符。

2. 发明申请

WO2016099902A2 EFFICIENTLY PROVIDING VIRTUAL MACHINE REFERENCE POINTS 审中-公开
标题翻译：高效地提供虚拟机引用点
公开(公告)号：WO2016099902A2
公开(公告)日：2016-06-23
申请号：PCT/US2015/063565
申请日：2015-12-03
申请人： MICROSOFT TECHNOLOGY LICENSING, LLC
发明人： BEZBARUAH, Angshuman , REUTHER, Lars , BROWN, Taylor O'Neil , STARKS, John Andrew
IPC分类号： G06F9/455 , G06F11/14
CPC分类号： G06F11/1451 , G06F3/0619 , G06F3/065 , G06F3/067 , G06F9/45558 , G06F11/1446 , G06F2009/45579 , G06F2009/45591 , G06F2201/815 , G06F2201/84
摘要： Embodiments are directed to establishing efficient virtual machine reference points and to specifying a virtual machine reference point to query incremental changes. In one scenario, a computer system accesses a stable virtual machine checkpoint that includes portions of underlying data stored in data storage, where the checkpoint is associated with a specific point in time. The computer system then queries the data storage to determine data storage identifiers that reference the point in time associated with the checkpoint and stores the determined data storage identifiers as a virtual machine reference point, where each subsequent change to the data storage results in an update to the data storage identifier, so that virtual machine reference point is usable to identify incremental changes from specific points in time on.
摘要翻译：实施例旨在建立有效的虚拟机参考点并指定虚拟机参考点以查询增量变化。在一种情况下，计算机系统访问稳定的虚拟机检查点，该检查点包括存储在数据存储器中的基础数据的部分，其中检查点与特定时间点相关联。然后计算机系统查询数据存储器以确定引用与检查点相关联的时间点的数据存储标识符，并将所确定的数据存储标识符存储为虚拟机参考点，其中对数据存储的每个后续改变导致对数据存储标识符，以便虚拟机参考点可用于识别从特定时间点开始的增量更改。

3. 发明申请

WO2016077267A1 VIRTUAL MACHINE CLUSTER BACKUP 审中-公开
标题翻译：虚拟机集群备份
公开(公告)号：WO2016077267A1
公开(公告)日：2016-05-19
申请号：PCT/US2015/059819
申请日：2015-11-10
申请人： MICROSOFT TECHNOLOGY LICENSING, LLC
发明人： BEZBARUAH, Angshuman , REUTHER, Lars , BROWN, Taylor O'Neil
IPC分类号： G06F11/14
CPC分类号： G06F11/1458 , G06F3/0619 , G06F3/065 , G06F3/0689 , G06F9/45558 , G06F11/1438 , G06F11/1446 , G06F11/1484 , G06F11/2046 , G06F2009/45583 , G06F2201/82 , G06F2201/84
摘要： Embodiments are directed to backing up a virtual machine cluster and to determining virtual machine node ownership prior to backing up a virtual machine cluster. In one scenario, a computer system determines which virtual machines nodes are part of the virtual machine cluster, determines which shared storage resources are part of the virtual machine cluster and determines which virtual machine nodes own the shared storage resources. The computer system then indicates to the virtual machine node owners that at least one specified application is to be quiesced over the nodes of the virtual machine cluster, such that a consistent, cluster-wide checkpoint can be created. The computer system further creates a cluster-wide checkpoint which includes a checkpoint for each virtual machine in the virtual machine cluster.
摘要翻译：实施例涉及在备份虚拟机集群之前备份虚拟机集群并确定虚拟机节点所有权。在一种情况下，计算机系统确定哪些虚拟机节点是虚拟机集群的一部分，确定哪些共享存储资源是虚拟机集群的一部分，并确定哪些虚拟机节点拥有共享存储资源。然后，计算机系统向虚拟机节点所有者指示至少一个指定的应用程序将在虚拟机集群的节点上停顿，以便可以创建一致的集群范围的检查点。计算机系统还创建一个集群范围的检查点，其中包括虚拟机集群中每个虚拟机的检查点。

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