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公开(公告)号：US09836368B2
公开(公告)日：2017-12-05
申请号：US14920334
申请日：2015-10-22
Applicant: NetApp Inc.
Inventor： Hrishikesh Keremane , Vijay Singh
CPC classification number: G06F11/2069 , G06F11/0727 , G06F11/0757 , G06F11/2092 , G06F2201/805
Abstract: One or more techniques and/or computing devices are provided for automatic switchover implementation. For example, a first storage controller, of a first storage cluster, may have a disaster recovery relationship with a second storage controller of a second storage cluster. In the event the first storage controller fails, the second storage controller may automatically switchover operation from the first storage controller to the second storage controller for providing clients with failover access to data previously accessible to the clients through the first storage controller. The second storage controller may detect, cross-cluster, a failure of the first storage controller utilizing remote direct memory access (RDMA) read operations to access heartbeat information, heartbeat information stored within a disk mailbox, and/or service processor traps. In this way, the second storage controller may efficiently detect failure of the first storage controller to trigger automatic switchover for non-disruptive client access to data.
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公开(公告)号：US20170116097A1
公开(公告)日：2017-04-27
申请号：US14920334
申请日：2015-10-22
Applicant: NetApp Inc.
Inventor： Hrishikesh Keremane , Vijay Singh
CPC classification number: G06F11/2069 , G06F11/0727 , G06F11/0757 , G06F11/2092 , G06F2201/805
Abstract: One or more techniques and/or computing devices are provided for automatic switchover implementation. For example, a first storage controller, of a first storage cluster, may have a disaster recovery relationship with a second storage controller of a second storage cluster. In the event the first storage controller fails, the second storage controller may automatically switchover operation from the first storage controller to the second storage controller for providing clients with failover access to data previously accessible to the clients through the first storage controller. The second storage controller may detect, cross-cluster, a failure of the first storage controller utilizing remote direct memory access (RDMA) read operations to access heartbeat information, heartbeat information stored within a disk mailbox, and/or service processor traps. In this way, the second storage controller may efficiently detect failure of the first storage controller to trigger automatic switchover for non-disruptive client access to data.
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23.发明申请METHODS AND SYSTEMS FOR EFFICIENTLY MOVING DATA BETWEEN NODES IN A CLUSTER 审中-公开有效地移动群集中的节点之间的数据的方法和系统公开(公告)号：US20170034269A1
公开(公告)日：2017-02-02
申请号：US14840512
申请日：2015-08-31
Applicant: NETAPP, INC.
Inventor： Balajee Nagasubramaniam , Subin Govind , Vijay Singh , Jeff Prem
CPC classification number: H04L67/1097 , G06F15/167 , H04L43/16 , H04L69/16 , H04L69/161 , H04L69/18
Abstract: Exemplary embodiments provide methods, mediums, and systems for efficiently moving data between cluster nodes. Upon receiving a request to read or write data at a first cluster node that is in communication with a client, the first node effects the transfer to or from a second cluster node. The transfer is carried out using a combination of remote data memory access (“RDMA”), or a similar technique that bypasses a part of the network stack, and transport control protocol (“TCP”), or a similar technique that does not bypass a part of the network stack. The data is transferred using RDMA, while certain control messages are sent using TCP. By combining RDMA content transfers and TCP control messages, data transfers can be carried out faster, more efficiently, and with less processing overhead. Other embodiments are described and claimed.
Abstract translation: 示例性实施例提供用于在集群节点之间有效移动数据的方法，介质和系统。 在接收到与客户端通信的第一集群节点读取或写入数据的请求时，第一节点影响到第二集群节点的传输或从第二集群节点传送数据。 使用远程数据存储器访问（“RDMA”）或绕过网络堆栈的一部分的类似技术以及传输控制协议（“TCP”）或不绕过的类似技术来进行传送 网络堆栈的一部分。 使用RDMA传输数据，而使用TCP发送某些控制消息。 通过组合RDMA内容传输和TCP控制消息，可以更快，更有效地执行数据传输，并以较少的处理开销进行数据传输。 描述和要求保护其他实施例。
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Patent Agency Ranking
24.发明申请公开(公告)号：US20170034267A1
公开(公告)日：2017-02-02
申请号：US14814658
申请日：2015-07-31
Applicant: NetApp, Inc.
Inventor： Balajee Nagasubramaniam , Vijay Singh
IPC: H04L29/08 , H04L12/911
CPC classification number: H04L67/1097 , H04L47/781
Abstract: Methods, non-transitory computer readable media, and computing devices that send an allocation request for an amount of memory to a another computing device. An indication of a memory range corresponding to a plurality of remote use data buffers within a memory of the another computing device is received from the another computing device. A locally managed remote memory (LMRM) pool comprising metadata for the remote use data buffers is instantiated based on the indication of the memory range. One of the remote use data buffers in the LMRM pool is reserved. Data is sent via remote direct memory access (RDMA) to the one of the remote use data buffers. Advantageously, with this technology, a computing device can manage memory belonging to another computing device via the LMRM pool in order to transfer data more efficiently.
Abstract translation: 方法，非暂时计算机可读介质和向另一计算设备发送一定量存储器的分配请求的计算设备。 从另一计算设备接收与另一计算设备的存储器内的多个远程使用数据缓冲器对应的存储器范围的指示。 基于存储器范围的指示来实例化包括用于远程使用数据缓冲器的元数据的本地管理的远程存储器（LMRM）池。 保留LMRM池中的远程使用数据缓冲区之一。 数据通过远程直接存储器访问（RDMA）发送到远程使用数据缓冲区之一。 有利地，利用该技术，计算设备可以经由LMRM池管理属于另一计算设备的存储器，以便更有效地传送数据。
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公开(公告)号：US11218391B2
公开(公告)日：2022-01-04
申请号：US16657046
申请日：2019-10-18
Applicant: NetApp, inc.
Inventor： Vijay Singh , Abhishek Mishra , Douglas Joseph Santry , Niranjan Desai , Anusha Sivananainthaperumal
Abstract: Methods, non-transitory machine readable media, and computing devices that manage data storage fabric health are disclosed. With this technology, a network model is applied to network data determined from monitored network traffic exchanged between storage nodes and via network connections over a cluster fabric to generate a health score for the cluster fabric. A cause of health degradation in the cluster fabric is determined based on an analysis of the network data, when the health score indicates that health of the cluster fabric is degrading. A corrective action is automatically initiated based on the cause of health degradation in the cluster fabric. With this technology, cluster fabrics in data storage networks are more effectively monitored for health degradation and, advantageously, corrective actions can be preemptively initiated to improve performance.
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公开(公告)号：US20210176513A1
公开(公告)日：2021-06-10
申请号：US17182576
申请日：2021-02-23
Applicant: NetApp Inc.
Inventor： Balaji Ramani , Kazunobu Nishime , Pankti Vinay Majmudar , Prachi Bapurao Deshmukh , Susan M. Coatney , Vijay Singh
IPC: H04N21/2668 , H04N21/2187 , H04N21/6408 , H04N21/472 , H04N21/239 , H04N21/218 , H04N21/2343 , H04N21/8549 , H04N21/2387 , H04N21/2665 , H04N21/458 , H04N21/462
Abstract: One or more techniques and/or devices are provided for storage virtual machine relocation (e.g., ownership change) between storage clusters. For example, operational statistics of a first storage cluster and a second storage cluster may be evaluated to identify a set of load balancing metrics. Ownership of one or more storage aggregates and/or one or more storage virtual machines may be changed (e.g., permanently changed for load balancing purposes or temporarily changed for disaster recovery purposes) between the first storage cluster and the second storage cluster utilizing zero-copy ownership change operations based upon the set of load balancing metrics. For example, if the first storage cluster is experiencing a relatively heavier load of client I/O operations and the second storage cluster has available resources, ownership of a storage aggregate and a storage virtual machine may be switched from the first storage cluster to the second storage cluster for load balancing.
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公开(公告)号：US20190324787A1
公开(公告)日：2019-10-24
申请号：US16456846
申请日：2019-06-28
Applicant: NetApp Inc.
Inventor： Balaji Ramani , Kazunobu Nishime , Pankti Vinay Majmudar , Prachi Bapurao Deshmukh , Susan M. Coatney , Vijay Singh
Abstract: One or more techniques and/or devices are provided for storage virtual machine relocation (e.g., ownership change) between storage clusters. For example, operational statistics of a first storage cluster and a second storage cluster may be evaluated to identify a set of load balancing metrics. Ownership of one or more storage aggregates and/or one or more storage virtual machines may be changed (e.g., permanently changed for load balancing purposes or temporarily changed for disaster recovery purposes) between the first storage cluster and the second storage cluster utilizing zero-copy ownership change operations based upon the set of load balancing metrics. For example, if the first storage cluster is experiencing a relatively heavier load of client I/O operations and the second storage cluster has available resources, ownership of a storage aggregate and a storage virtual machine may be switched from the first storage cluster to the second storage cluster for load balancing.
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公开(公告)号：US20180181430A1
公开(公告)日：2018-06-28
申请号：US15902510
申请日：2018-02-22
Applicant: NetApp Inc.
Inventor： Balaji Ramani , Kazunobu Nishime , Pankti Vinay Majmudar , Prachi Bapurao Deshmukh , Susan M. Coatney , Vijay Singh
CPC classification number: G06F9/45558 , G06F3/0619 , G06F3/0647 , G06F3/065 , G06F3/067 , G06F11/14 , G06F2009/4557 , G06F2009/45575 , G06F2009/45583
Abstract: One or more techniques and/or devices are provided for storage virtual machine relocation (e.g., ownership change) between storage clusters. For example, operational statistics of a first storage cluster and a second storage cluster may be evaluated to identify a set of load balancing metrics. Ownership of one or more storage aggregates and/or one or more storage virtual machines may be changed (e.g., permanently changed for load balancing purposes or temporarily changed for disaster recovery purposes) between the first storage cluster and the second storage cluster utilizing zero-copy ownership change operations based upon the set of load balancing metrics. For example, if the first storage cluster is experiencing a relatively heavier load of client I/O operations and the second storage cluster has available resources, ownership of a storage aggregate and a storage virtual machine may be switched from the first storage cluster to the second storage cluster for load balancing.
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