公开(公告)号：WO2017070644A1

公开(公告)日：2017-04-27

申请号：PCT/US2016/058374

申请日：2016-10-24

Applicant: NETAPP, INC.

Inventor： KEREMANE, Hrishikesh ,  SINGH, Vijay

IPC: G06F11/20

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.

Abstract translation: 提供一种或多种技术和/或计算设备用于自动切换实现。 例如，第一存储集群的第一存储控制器可以具有与第二存储集群的第二存储控制器的灾难恢复关系。 在第一存储控制器发生故障的情况下，第二存储控制器可以自动地将操作从第一存储控制器切换到第二存储控制器，以向客户端提供对客户端通过第一存储控制器先前可访问的数据的故障转移访问。 第二存储控制器可以利用远程直接存储器访问（RDMA）读取操作访问心跳信息，存储在磁盘邮箱内的心跳信息和/或服务处理器陷阱来检测第一存储控制器的故障。 通过这种方式，第二存储控制器可以有效地检测到第一存储控制器的故障，从而触发自动切换以实现无中断的客户端访问数据。

公开(公告)号：EP3365786B1

公开(公告)日：2019-06-19

申请号：EP16791496.9

申请日：2016-10-24

Applicant: NetApp, Inc.

Inventor： KEREMANE, Hrishikesh ,  SINGH, Vijay

IPC: G06F11/20

公开(公告)号：EP3365786A1

公开(公告)日：2018-08-29

申请号：EP16791496.9

申请日：2016-10-24

Applicant: NetApp, Inc.

Inventor： KEREMANE, Hrishikesh ,  SINGH, Vijay

IPC: G06F11/20

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.