公开(公告)号：US20160085647A1

公开(公告)日：2016-03-24

申请号：US14559343

申请日：2014-12-03

Applicant: NetApp, Inc.

Inventor： Vaiapuri Ramasubramaniam ,  Harihara Kadayam ,  Parag Sarfare ,  Yong Eun Cho ,  Chaitanya Patel ,  Hrishikesh Keremane ,  Prachi Deshmukh

IPC: G06F11/20

CPC classification number: G06F11/2033 ,  G06F11/2028 ,  G06F11/2041 ,  G06F11/2046 ,  G06F2201/805

Abstract: A system and method for handling multi-node failures in a disaster recovery cluster is provided. In the event of an error condition, a switchover operation occurs from the failed nodes to one or more surviving nodes. Data stored in non-volatile random access memory is recovered by the surviving nodes to bring storage objects, e.g., disks, aggregates and/or volumes into a consistent state.

Abstract translation: 提供了一种用于处理灾难恢复集群中的多节点故障的系统和方法。 在发生错误的情况下，从故障节点到一个或多个幸存节点发生切换操作。 存储在非易失性随机存取存储器中的数据由幸存的节点恢复，以将存储对象（例如，磁盘，聚合和/或卷）带入一致的状态。

公开(公告)号：US20150317224A1

公开(公告)日：2015-11-05

申请号：US14265592

申请日：2014-04-30

Applicant: NetAPP, Inc.

Inventor： Yong Cho ,  Prachi Deshmukh

IPC: G06F11/20 ,  H04L29/08

CPC classification number: G06F11/2094 ,  G06F3/0619 ,  G06F3/0634 ,  G06F3/0635 ,  G06F3/0659 ,  G06F3/067 ,  G06F11/1662 ,  G06F11/20 ,  G06F11/2035 ,  G06F11/2046 ,  G06F11/2069 ,  G06F11/2071 ,  G06F11/2097 ,  G06F2201/805 ,  G06F2201/82 ,  G06F2212/1032 ,  G06F2212/163 ,  G06F2212/263 ,  H04L29/08 ,  H04L67/1097 ,  H04L69/40

Abstract: Methods, systems, and computer program products for preventing non-detectable data loss during site switchover are disclosed. A computer-implemented method may include receiving a request to perform a switchover from a first node to a second node, determining whether to place a storage volume involved in the switchover in a suspended state, setting the storage volume in the suspended state based on determining that the storage volume is to be placed in the suspended state, and maintaining the storage volume in the suspended state after completing the switchover. In an example, the storage volume may be placed in a suspended state based on examining a volume-specific attribute indicating whether the storage volume is to be suspended when involved in a switchover. In one example, each storage volume involved in a switchover may be placed in a suspended state when indicated as part of a switchover request.

Abstract translation: 公开了用于在站点切换期间防止不可检测的数据丢失的方法，系统和计算机程序产品。 计算机实现的方法可以包括接收执行从第一节点切换到第二节点的请求，确定是否将切换中涉及的存储卷放置在暂停状态，基于确定将所述存储卷设置为暂停状态 存储卷将处于挂起状态，并在完成切换后将存储卷保持在挂起状态。 在一个示例中，存储卷可以基于检查特定于卷的属性而被置于暂停状态，该特定属性指示当参与切换时是否暂停存储卷。 在一个示例中，当切换请求的一部分被指示时，切换中涉及的每个存储卷可以被置于暂停状态。