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公开(公告)号：US10320702B2
公开(公告)日：2019-06-11
申请号：US14870390
申请日：2015-09-30
发明人： Jai Gahlot , Amol S. Katkar , Udipta Das , Pranav Peshwe
摘要： Various systems, methods, and processes to optimize input/output (I/O) fencing operations in systems that implement coordination points are presented. A matrix is generated. The matrix includes information indicating the accessibility of one or more coordination points by a node. The method then transmits the matrix to one or more other nodes.
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公开(公告)号：US10320703B2
公开(公告)日：2019-06-11
申请号：US14870920
申请日：2015-09-30
发明人： Jai Gahlot , Amol S. Katkar , Udipta Das , Pranav Peshwe
摘要： Various methods, systems, and processes to prevent data corruption caused by a pre-existing split brain condition in a cluster are presented. In response to determining that a node is no longer part of a sub-cluster, another node in the sub-cluster is designated as a racer node. The racer node accesses a matrix, and the matrix includes information to determine whether a majority of coordination points in a cluster are accessible by nodes in the sub-cluster. Based on the accessing, a determination is made that the information indicates that the majority of coordination points are accessible by the nodes. The information is then broadcasted.
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公开(公告)号：US10341252B2
公开(公告)日：2019-07-02
申请号：US14870956
申请日：2015-09-30
发明人： Jai Gahlot , Amol S. Katkar , Udipta Das , Pranav Peshwe
摘要： Various systems, methods, and processes to optimize partition arbitration are disclosed. In response to a cluster being partitioned into multiple network partitions, a determination is made, using a first node in a first network partition, whether the first node wins one or more coordination points. The determination of the first node is then transmitted to a second node in the first network partition. Further, another determination is made using the second node whether the second node wins one or more other coordination points other than the one or more coordination points won by the first node.
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公开(公告)号：US09792150B1
公开(公告)日：2017-10-17
申请号：US13930752
申请日：2013-06-28
发明人： Amit Haridas Rangari , Udipta Das
CPC分类号： G06F9/4856 , G06F9/45558 , G06F2009/4557 , G06F2009/45575
摘要： Various systems and methods for detecting a site change. For example, one method involves detecting migration of a virtual machine. The method also involves determining whether the virtual machine moved from one site to another site during the migration. The method also involves updating location information, where the location information is updated in response to determining whether the virtual machine moved from one site to another.
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