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    OBJECT AND SEQUENCE NUMBER MANAGEMENT
    161.
    发明申请
    OBJECT AND SEQUENCE NUMBER MANAGEMENT 审中-公开

    公开(公告)号：US20180314719A1

    公开(公告)日：2018-11-01

    申请号：US15581447

    申请日：2017-04-28

    Applicant: NetApp Inc.

    Inventor： Ananthan Subramanian ,  Sridevi Jantli ,  Anil Paul Thoppil ,  Cheryl Marie Thompson ,  Qinghua Zheng

    IPC: G06F17/30

    CPC classification number: G06F16/215 ,  G06F16/22 ,  G06F16/2379

    Abstract: Techniques are provided for orphan object detection, invalid sequence number detection, and asynchronous object cleanup. A storage system may store data within one or more tiers of storage, such as a storage tier (e.g., solid state storage and disks maintained by the storage system), a remote object store (e.g., storage provided by a third party storage provider), and/or other storage tiers. Orphan objects, within the remote object store, that are no longer used by the storage system may be detected and/or deleted. When an aggregate of volumes is deleted, corresponding objects, within the remote object store, may be identified and/or deleted. Invalid sequence numbers (e.g., lost or corrupt sequence numbers locally maintained in a metafile) assigned to objects within the remote object store may be identified, deleted, and/or fixed.

    INCREMENTAL TRANSFER WITH UNUSED DATA BLOCK RECLAMATION
    166.
    发明申请
    INCREMENTAL TRANSFER WITH UNUSED DATA BLOCK RECLAMATION 审中-公开
    未使用数据块重新移植的增量传输

    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。

    DEDUPLICATION IN AN EXTENT-BASED ARCHITECTURE
    167.
    发明申请
    DEDUPLICATION IN AN EXTENT-BASED ARCHITECTURE 有权
    在基于结构的架构中的分类

    公开(公告)号：US20140201168A1

    公开(公告)日：2014-07-17

    申请号：US14087345

    申请日：2013-11-22

    Applicant: NetApp, Inc.

    Inventor： Subramaniam Periyagaram ,  Sandeep Yadav ,  Blake Lewis ,  Rickard E. Faith ,  Ashish Prakash ,  Ram Kesavan ,  Ananthan Subramanian

    IPC: G06F17/30

    CPC classification number: G06F17/30156 ,  G06F3/0608 ,  G06F3/0641

    Abstract: A request is received to remove duplicate data. A log data container associated with a storage volume in a storage server is accessed. The log data container includes a plurality of entries. Each entry is identified by an extent identifier in a data structures stored in a volume associated with the storage server. For each entry in the log data container, a determination is made if the entry matches another entry in the log data container. If the entry matches another entry in the log data container, a determination is made of a donor extent and a recipient extent. If an external reference count associated with the recipient extent equals a first predetermined value, block sharing is performed for the donor extent and the recipient extent. A determination is made if the reference count of the donor extent equals a second predetermined value. If the reference count of the donor extent equals the second predetermined value, the donor extent is freed.

    Abstract translation: 收到请求以删除重复的数据。 访问与存储服务器中的存储卷相关联的日志数据容器。 日志数据容器包括多个条目。 每个条目由存储在与存储服务器相关联的卷中的数据结构中的盘区标识符标识。 对于日志数据容器中的每个条目，确定条目是否匹配日志数据容器中的另一个条目。 如果条目与日志数据容器中的另一个条目匹配，则确定捐赠者范围和受众范围。 如果与接收者范围相关联的外部参考计数等于第一预定值，则对捐赠者范围和接受者范围执行块共享。 如果供体范围的参考计数等于第二预定值，则确定。 如果供体范围的参考计数等于第二预定值，则供体范围被释放。

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