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    • 31. 发明授权
    • Out of order delivery for data and metadata mirroring in a cluster storage system
    • 群集存储系统中数据和元数据镜像的乱序传递
    • US08386425B1
    • 2013-02-26
    • US12709185
    • 2010-02-19
    • Harihara S. KadayamHari Shankar
    • Harihara S. KadayamHari Shankar
    • G06F7/00
    • H04L67/1095G06F11/2038G06F11/2046G06F11/2064G06F11/2071
    • Described herein are a system and method for remote mirroring of data and metadata from a local node to a remote node using out-of-order delivery (OOD), while also providing data integrity at the remote node. OOD may utilize increased throughput of multiple connection paths between nodes. A mirroring layer/engine executing on the local node may receive related groups of data and metadata for storing to the remote node, each related group comprising one or more data sets and one metadata set that describes and is associated with each of the one or more data sets in the related group. The mirroring layer provides data integrity at the remote node by ensuring that the metadata set of a related group is stored to the remote node only after all the data sets in the related group are stored to the remote node, thus ensuring data consistency at the remote node.
    • 这里描述了一种用于使用无序传送(OOD)从本地节点到远程节点远程镜像数据和元数据的系统和方法,同时还在远程节点处提供数据完整性。 OOD可以利用节点之间的多个连接路径的增加的吞吐量。 在本地节点上执行的镜像层/引擎可以接收相关的数据组和元数据,用于存储到远程节点,每个相关组包括一个或多个数据集和一个元数据集,其描述并且与一个或多个 相关组中的数据集。 镜像层在远程节点提供数据完整性,只有在相关组中的所有数据集都存储到远程节点之后,确保相关组的元数据集存储到远程节点,从而确保远程数据的一致性 节点。
    • 32. 发明申请
    • NON-DISRUPTIVE FAILOVER OF RDMA CONNECTION
    • RDMA连接的非破坏性故障
    • US20120166886A1
    • 2012-06-28
    • US12978866
    • 2010-12-27
    • Hari ShankarHuadong LiuHua Li
    • Hari ShankarHuadong LiuHua Li
    • G06F11/34
    • H04L41/0654G06F11/2028G06F11/2038G06F11/2046G06F11/2097
    • A novel RDMA connection failover technique that minimizes disruption to upper subsystem modules (executed on a computer node), which create requests for data transfer. A new failover virtual layer performs failover of an RDMA connection in error so that the upper subsystem that created a request does not have knowledge of an error (which is recoverable in software and hardware), or of a failure on the RDMA connection due to the error. Since the upper subsystem does not have knowledge of a failure on the RDMA connection or of a performed failover of the RDMA connection, the upper subsystem continues providing requests to the failover virtual layer without interruption, thereby minimizing downtime of the data transfer activity.
    • 一种新颖的RDMA连接故障切换技术,可最大限度地减少上层子系统模块(在计算机节点上执行)的干扰,从而创建数据传输请求。 新的故障转移虚拟层错误地执行RDMA连接的故障转移,以便创建请求的上级子系统不知道错误(可在软件和硬件中恢复)或RDMA连接发生故障,因为 错误。 由于上级子系统不知道RDMA连接上的故障或RDMA连接的已执行故障转移,上级子系统会继续向故障转移虚拟层提供请求,而不会中断,从而最大限度地减少数据传输活动的停机时间。
    • 36. 发明申请
    • REDUCING OVERHEAD IN COMPONENT INTERACTIONS
    • 减少组件相互影响
    • US20090089428A1
    • 2009-04-02
    • US11864317
    • 2007-09-28
    • Snehal S. AntaniMohammad N. FakharHari Shankar
    • Snehal S. AntaniMohammad N. FakharHari Shankar
    • G06F15/173
    • G06F15/16
    • Systems, methods and computer program products are provided for reducing overhead in component interactions comprising monitoring interactions between components residing within a domain boundary; storing data indicative of the interactions; analyzing the data to determine whether there is a first component on a first server and a second component on a second server within the domain boundary that are coupled and dislocated that should be co-located; evaluating available server resources; determining whether the first and second components can be co-located based upon the evaluation of available server resources; and conveying a request to co-locate the first and second components if it is determined that the first and second components can be co-located.
    • 提供了系统,方法和计算机程序产品,用于减少组件交互中的开销,包括监视驻留在域边界内的组件之间的交互; 存储指示相互作用的数据; 分析数据以确定第一服务器上是否存在第一组件,并且域域边界内的第二服务器上的第二组件被耦合和脱位,所述第二组件应位于同一位置; 评估可用的服务器资源; 基于对可用服务器资源的评估来确定第一和第二组件是否可以共同定位; 以及如果确定所述第一和第二组件可以位于同一位置,则传送用于共同定位所述第一和第二组件的请求。