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    • 2. 发明授权
    • Data redistribution in data replication systems
    • 数据复制系统中的数据重新分配
    • US08837480B2
    • 2014-09-16
    • US13666871
    • 2012-11-01
    • Hua ZhongDheer MogheSazzala Venkata Reddy
    • Hua ZhongDheer MogheSazzala Venkata Reddy
    • H04L12/28
    • G06F17/30575H04L67/1095
    • Data replication comprises: redistributing one or more originator data subsets among a plurality of originator nodes; determining data redistribution information pertaining to redistribution of the one or more originator data subsets among the plurality of originator nodes; and sending data redistribution information to a replica system. The data redistribution information is used by the replica system to redistribute one or more corresponding replica data subsets among a plurality of replica nodes; and the one or more corresponding replica data subsets are redistributed among the plurality of replica nodes without requiring the one or more originator data subsets to be sent to the replica system during redistribution.
    • 数据复制包括:在多个发起者节点之间重新分配一个或多个发起者数据子集; 确定与所述多个发起者节点中的所述一个或多个发起者数据子集的再分配有关的数据再分配信息; 并将数据再发布信息发送到副本系统。 复制系统使用数据再分配信息来重新分配多个复制节点之中的一个或多个对应的副本数据子集; 并且在多个副本节点之间重新分配一个或多个对应的副本数据子集,而不需要在再分配期间将一个或多个发起者数据子集发送到副本系统。
    • 3. 发明申请
    • DATA REDISTRIBUTION IN DATA REPLICATION SYSTEMS
    • 数据复制系统中的数据重新分配
    • US20130124476A1
    • 2013-05-16
    • US13666871
    • 2012-11-01
    • Hua ZhongDheer MogheSazzala Venkata Reddy
    • Hua ZhongDheer MogheSazzala Venkata Reddy
    • G06F17/30
    • G06F17/30575H04L67/1095
    • Data replication comprises: redistributing one or more originator data subsets among a plurality of originator nodes; determining data redistribution information pertaining to redistribution of the one or more originator data subsets among the plurality of originator nodes; and sending data redistribution information to a replica system. The data redistribution information is used by the replica system to redistribute one or more corresponding replica data subsets among a plurality of replica nodes; and the one or more corresponding replica data subsets are redistributed among the plurality of replica nodes without requiring the one or more originator data subsets to be sent to the replica system during redistribution.
    • 数据复制包括:在多个发起者节点之间重新分配一个或多个发起者数据子集; 确定与所述多个发起者节点中的所述一个或多个发起者数据子集的再分配有关的数据再分配信息; 并将数据再发布信息发送到副本系统。 复制系统使用数据再分配信息来重新分配多个复制节点之中的一个或多个对应的副本数据子集; 并且在多个副本节点之间重新分配一个或多个对应的副本数据子集,而不需要在再分配期间将一个或多个发起者数据子集发送到副本系统。
    • 5. 发明授权
    • System and method for determining physical storage space of a deduplicated storage system
    • 用于确定重复数据消除的存储系统的物理存储空间的系统和方法
    • US08700578B1
    • 2014-04-15
    • US13629573
    • 2012-09-27
    • Srikant VaradanDheer MogheSazzala Reddy
    • Srikant VaradanDheer MogheSazzala Reddy
    • G06F17/30
    • G06F17/3015
    • Exemplary methods, apparatuses, and systems maintain a plurality of summary data structures corresponding to a plurality of logical file system namespaces representing a plurality of hierarchies of one or more directories having one or more files, each file being stored in the storage system as a plurality of segments in a deduplicated manner. In response to a request to estimate a storage usage by a first of the file system namespace, identify a first of the summary data structures corresponding to the first file system namespace, wherein the first summary data structure stores information summarizing deduplicated segments referenced by one or more files of the first file system namespace. Estimate the storage usage of the first file system namespace based on the first summary data structure and a global summary data structure, wherein the global summary data structure stores information summarizing deduplicated segments referenced by all of the file system namespaces.
    • 示例性方法,装置和系统保持对应于表示具有一个或多个文件的一个或多个目录的多个层级的多个逻辑文件系统命名空间的多个摘要数据结构,每个文件作为多个存储在存储系统中 的部分以重复数据删除的方式。 响应于估计第一文件系统命名空间的存储使用的请求,识别对应于第一文件系统命名空间的第一个摘要数据结构,其中第一简要数据结构存储总结由一个或多个文件系统命名空间引用的重复数据删除的段的信息 更多文件的第一个文件系统命名空间。 基于第一个摘要数据结构和全局摘要数据结构来估计第一个文件系统命名空间的存储使用情况,其中全局摘要数据结构存储总结所有文件系统命名空间所引用的重复数据删除段的信息。