公开(公告)号：US10769024B2

公开(公告)日：2020-09-08

申请号：US14861310

申请日：2015-09-22

Applicant: NetApp Inc.

Inventor： Ananthan Subramanian ,  Rimas Svarcas ,  Ram Kesavan ,  Srishylam Simharajan ,  John Frederick Destefano

IPC: G06F11/14 ,  G06F3/06 ,  G06F16/11

Abstract: One or more techniques and/or systems are provided for incremental transfer with unused data block reclamation. For example, source volume of a source storage filer may have a physical replication relationship with a destination volume of a destination storage filer. Snapshots of a file system of the source volume may be used to identify new data blocks (e.g., data blocks allocated or reallocated to a new snapshot) and/or unused data blocks (e.g., data blocks of a deleted snapshot) used to incrementally update the destination volume so that the destination volume is a mirrored replication of the source volume. In this way, new data blocks may be updated and unused data blocks may be punched out (e.g., deallocated) of the destination volume during execution of an incremental update.

公开(公告)号：US20170031772A1

公开(公告)日：2017-02-02

申请号：US14861310

申请日：2015-09-22

Applicant: NetApp Inc.

Inventor： Ananthan Subramanian ,  Rimas Svarcas ,  Ram Kesavan ,  Srishylam Simharajan ,  John Frederick Destefano

IPC: G06F11/14 ,  G06F3/06 ,  G06F17/30

Abstract: One or more techniques and/or systems are provided for incremental transfer with unused data block reclamation. For example, source volume of a source storage filer may have a physical replication relationship with a destination volume of a destination storage filer. Snapshots of a file system of the source volume may be used to identify new data blocks (e.g., data blocks allocated or reallocated to a new snapshot) and/or unused data blocks (e.g., data blocks of a deleted snapshot) used to incrementally update the destination volume so that the destination volume is a mirrored replication of the source volume. In this way, new data blocks may be updated and unused data blocks may be punched out (e.g., deallocated) of the destination volume during execution of an incremental update.

Abstract translation: 提供一个或多个技术和/或系统用于不用数据块回收的增量传送。 例如，源存储文件管理器的源卷可能与目标存储文件管理器的目标卷具有物理复制关系。 可以使用源卷的文件系统的快照来识别用于增量更新的新数据块（例如，分配或重新分配给新快照的数据块）和/或未使用的数据块（例如，已删除快照的数据块） 目标卷，以便目标卷是源卷的镜像复制。 以这种方式，可以更新新的数据块，并且在执行增量更新期间可以对未使用的数据块进行打孔（例如，释放）目的地卷。