公开(公告)号：US09537710B2

公开(公告)日：2017-01-03

申请号：US14134063

申请日：2013-12-19

Applicant: NetApp Inc.

Inventor： Hari Shankar ,  Huadong Liu ,  Hua Li

IPC: G06F11/00 ,  H04L12/24 ,  G06F11/20

CPC classification number: H04L41/0654 ,  G06F11/2028 ,  G06F11/2038 ,  G06F11/2046 ,  G06F11/2097

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20140136880A1

公开(公告)日：2014-05-15

申请号：US14134063

申请日：2013-12-19

Applicant: NetApp Inc.

Inventor： Hari Shankar ,  Huadong Liu ,  Hua Li

IPC: H04L12/24

CPC classification number: H04L41/0654 ,  G06F11/2028 ,  G06F11/2038 ,  G06F11/2046 ,  G06F11/2097

Abstract: 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.

Abstract translation: 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。