公开(公告)号：US20200159427A1

公开(公告)日：2020-05-21

申请号：US16774175

申请日：2020-01-28

Applicant: NetApp Inc

Inventor： Xin Wang ,  Vijay Deshmukh ,  Kiyoshi Komatsu ,  Jonathan Curley ,  Laura Beegle ,  Srishylam Simharajan ,  Gurmeet Singh

IPC: G06F3/06 ,  G06F16/27 ,  G06F16/178 ,  G06F16/182 ,  G06F16/174

Abstract: The disclosed techniques enable push-based piggybacking of a source-driven logical replication system. Logical replication of a data set (e.g., a snapshot) from a source node to a destination node can be achieved from a source-driven system while preserving the effects of storage efficiency operations (deduplication) applied at the source node. However, if missing data extents are detected at the destination, the destination has an extent pulling problem as the destination may not have knowledge of the physical layout on the source-side and/or mechanisms for requesting extents. The techniques overcome the extent pulling problem in a source-driven replication system by introducing specific protocols for obtaining missing extents within an existing replication environment by piggybacking data pushes from the source.

公开(公告)号：US09916100B2

公开(公告)日：2018-03-13

申请号：US14587419

申请日：2014-12-31

Applicant: NetApp, Inc.

Inventor： Xin Wang ,  Vijay Deshmukh ,  Kiyoshi Komatsu ,  Jonathan Curley ,  Laura Beegle ,  Srishylam Simharajan ,  Gurmeet Singh

IPC: G06F17/30 ,  G06F3/06

CPC classification number: G06F3/0619 ,  G06F3/065 ,  G06F3/067 ,  G06F17/30156 ,  G06F17/30174 ,  G06F17/30212 ,  G06F17/30283

Abstract: The disclosed techniques enable push-based piggybacking of a source-driven logical replication system. Logical replication of a data set (e.g., a snapshot) from a source node to a destination node can be achieved from a source-driven system while preserving the effects of storage efficiency operations (deduplication) applied at the source node. However, if missing data extents are detected at the destination, the destination has an extent pulling problem as the destination may not have knowledge of the physical layout on the source-side and/or mechanisms for requesting extents. The techniques overcome the extent pulling problem in a source-driven replication system by introducing specific protocols for obtaining missing extents within an existing replication environment by piggybacking data pushes from the source.

公开(公告)号：US20160117374A1

公开(公告)日：2016-04-28

申请号：US14522820

申请日：2014-10-24

Applicant: NetApp, Inc.

Inventor： Jonathan Curley ,  Srishylam Simharajan ,  Devang Shah ,  Richard Jernigan

IPC: G06F17/30

CPC classification number: G06F17/30082 ,  G06F17/30215

Abstract: A method, non-transitory computer readable medium, and device that replicates data and provides instantaneous access to data includes receiving in a destination volume one or more named data extents and one or more references to the one or more named data extents associated with a file in parallel from a source volume. A determination is made to check whether the one or more references arrive before the one or more named data extents arrive. Each of the received one or more references which are determined to have arrived prior to the one or more data extents is allocated as absent by the storage management computing device. An instantaneous access to the file is provided during the allocation.

Abstract translation: 一种方法，非暂时性计算机可读介质和复制数据并提供对数据的即时访问的设备包括在目的地卷中接收一个或多个命名的数据盘区以及对与文件相关联的一个或多个命名的数据盘区的一个或多个引用 从源卷并行。 确定在一个或多个命名的数据盘区到达之前检查一个或多个引用是否到达。 被确定为在一个或多个数据盘区之前已经到达的接收到的一个或多个引用中的每一个被分配为存储管理计算设备不存在。 在分配期间提供对文件的即时访问。

公开(公告)号：US20150347046A1

公开(公告)日：2015-12-03

申请号：US14587419

申请日：2014-12-31

Applicant: NetApp, Inc.

Inventor： Xin Wang ,  Vijay Deshmukh ,  Kiyoshi Komatsu ,  Jonathan Curley ,  Laura Beegle ,  Srishylam Simharajan ,  Gurmeet Singh

IPC: G06F3/06

CPC classification number: G06F3/0619 ,  G06F3/065 ,  G06F3/067 ,  G06F17/30156 ,  G06F17/30174 ,  G06F17/30212 ,  G06F17/30283

Abstract: The disclosed techniques enable push-based piggybacking of a source-driven logical replication system. Logical replication of a data set (e.g., a snapshot) from a source node to a destination node can be achieved from a source-driven system while preserving the effects of storage efficiency operations (deduplication) applied at the source node. However, if missing data extents are detected at the destination, the destination has an extent pulling problem as the destination may not have knowledge of the physical layout on the source-side and/or mechanisms for requesting extents. The techniques overcome the extent pulling problem in a source-driven replication system by introducing specific protocols for obtaining missing extents within an existing replication environment by piggybacking data pushes from the source.

Abstract translation: 所公开的技术使得源驱动的逻辑复制系统能够进行基于推式的搭载。 数据集（例如，快照）从源节点到目标节点的逻辑复制可以从源驱动系统实现，同时保留在源节点处应用的存储效率操作（重复数据删除）的影响。 然而，如果在目的地检测到缺少的数据盘区，则目的地具有范围拉动问题，因为目的地可能不知道源侧的物理布局和/或用于请求盘区的机制。 这些技术通过引入特定协议来克服源驱动复制系统中的拉伸问题，以通过捎带来自源的数据推送来在现有复制环境中获取缺少的扩展区。