公开(公告)号：US10853323B2

公开(公告)日：2020-12-01

申请号：US14807806

申请日：2015-07-23

Applicant: NetApp, Inc.

Inventor： Sisir Shekhar ,  Akshatha Gangadharaiah ,  Saravana Selvarai

IPC: G06F16/174 ,  H04L29/08

Abstract: A client identifies a first data unit to be shared from a first file to a second file and sends an operation to copy that indicates the first data unit to be shared. The operation to copy the first data unit from the first file to the second file is received. In response to receiving the operation to copy the first data unit from the first file to the second file, it is determined whether the first data unit can be shared with the second file. In response to determining that the first data unit cannot be shared with the second file, the first data unit is copied to the second file. In response to determining that the first data unit can be shared with the second file, the first data unit is shared between the first file and the second file.

公开(公告)号：US20170091057A1

公开(公告)日：2017-03-30

申请号：US14865542

申请日：2015-09-25

Applicant: NetApp Inc.

Inventor： Vaiapuri Ramasubramaniam ,  Balamurugan Ramajeyam ,  Aftab Ahman Ansari ,  Akshatha Gangadharaiah ,  Raman Madaan

IPC: G06F11/20 ,  G06F11/14

CPC classification number: G06F11/2082 ,  G06F11/2071 ,  G06F17/30 ,  G06F2201/84

Abstract: One or more techniques and/or computing devices are provided for implementing resynchronization operations. For example, a disaster recovery relationship may be established between a source storage volume, hosted by a source storage node, and a destination storage volume hosted by a destination storage node, such that data is replicated from the source storage volume to the destination storage volume for disaster recovery purposes. If the disaster recovery relationship breaks, then new compliance data, locked down into a write once read many state, may be created at the destination storage volume. A resynchronization operation may be performed to reestablish the disaster recovery relationship, while preserving the new compliance data so that a compliance policy is not violated. For example, cloned storage volumes, copying compliance data to source storage volumes before resynchronization, and/or moving compliance data to local volumes may be used to implement resynchronization operations while preserving compliance data.