公开(公告)号：WO2017132312A1

公开(公告)日：2017-08-03

申请号：PCT/US2017/015025

申请日：2017-01-26

Applicant: NETAPP, INC.

Inventor： KAUSHIK, Akhil ,  PONNAPUR, Anik, Kumar ,  RAGHAVAN, Aravind, Srinivasa ,  SUNDARARAJAN, Manoj, Kumar V.

IPC: G06F3/06

CPC classification number: G06F3/065 ,  G06F3/061 ,  G06F3/0617 ,  G06F3/0619 ,  G06F3/0658 ,  G06F3/0659 ,  G06F3/067 ,  G06F3/0683

Abstract: One or more techniques and/or computing devices are provided for resilient replication of storage operations. For example, a first storage controller may host first storage having a replication relationship with second storage hosted by a second storage controller. To improve resiliency against transient network issues of a network between the storage controllers, the first storage controller may implement a queue and retry mechanism to retry replication operations not acknowledge back by the second storage controller within a threshold time. The second storage controller may maintain a cumulative sequence number of a latest replication operation performed in order, an operation response map of replication operations performed out of order, and an operation finder map identifying currently implemented replication operations, which may be used to process incoming replication operations. Single write semantics, write order consistency, and reduction of write amplification may be provided.

Abstract translation: 提供一个或多个技术和/或计算设备用于存储操作的弹性复制。 例如，第一存储控制器可以托管与第二存储控制器托管的第二存储具有复制关系的第一存储。 为了提高针对存储控制器之间的网络的暂时网络问题的弹性，第一存储控制器可以实现队列和重试机制，以在阈值时间内重试第二存储控制器不应答的复制操作。 第二存储控制器可以保持按顺序执行的最新复制操作的累积序列号，乱序执行的复制操作的操作响应映射以及标识当前实现的复制操作的操作查找映射，其可以用于处理到来的复制 操作。 可以提供单写入语义，写入顺序一致性和减少写入放大。