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    MANAGEMENT OF EXTENT BASED METADATA WITH DENSE TREE STRUCTURES WITHIN A DISTRIBUTED STORAGE ARCHITECTURE
    1.
    发明申请
    MANAGEMENT OF EXTENT BASED METADATA WITH DENSE TREE STRUCTURES WITHIN A DISTRIBUTED STORAGE ARCHITECTURE 审中-公开
    在分布式存储架构中管理具有DENSE TREE结构的基于元素的元数据

    公开(公告)号：WO2015038741A1

    公开(公告)日：2015-03-19

    申请号：PCT/US2014/055138

    申请日：2014-09-11

    Applicant: NETAPP, INC.

    Inventor： ZHENG, Ling ,  LEWIS, Blake H. ,  PATEL, Kayuri H.

    IPC: G06F3/06

    CPC classification number: G06F17/30327 ,  G06F3/0611 ,  G06F3/0619 ,  G06F3/0638 ,  G06F3/0641 ,  G06F3/0655 ,  G06F3/0665 ,  G06F3/067 ,  G06F3/0689 ,  G06F17/30 ,  G06F17/30292

    Abstract: In one embodiment, a node coupled to one or more storage devices executes a storage input/output (I/O) stack having a volume layer. The volume layer manages volume metadata embodied as mappings from offsets of a logical unit (LUN) to extent keys associated with storage locations for extents on the one or more storage devices. Volume metadata is maintained as a dense tree metadata structure representing successive points in time. The dense tree metadata structure has multiple levels, wherein a top level of the dense tree metadata structure represents newer volume metadata changes and descending levels of the dense tree metadata structure represent older volume metadata changes. The node accesses a latest version of changes to the volume metadata by searching from the top level to the descending levels in the dense tree metadata structure.

    Abstract translation: 在一个实施例中，耦合到一个或多个存储设备的节点执行具有体积层的存储输入/输出（I / O）堆栈。 卷层管理体现为从逻辑单元（LUN）的偏移到与一个或多个存储设备上的范围的存储位置相关联的扩展密钥的映射的卷元数据。 卷元数据被保持为表示连续时间点的密集树元数据结构。 密集树元数据结构具有多个层次，其中密集树元数据结构的顶层表示较新的卷元数据更改，密集树元数据结构的下降层表示较旧的卷元数据更改。 节点通过从密级树元数据结构中的顶层到下行级别进行搜索来访问对卷元数据的最新版本的更改。

    MANAGEMENT OF EXTENT BASED METADATA WITH DENSE TREE STRUCTURES WITHIN A DISTRIBUTED STORAGE ARCHITECTURE
    2.
    发明公开
    MANAGEMENT OF EXTENT BASED METADATA WITH DENSE TREE STRUCTURES WITHIN A DISTRIBUTED STORAGE ARCHITECTURE 审中-公开
    密集的树形结构管理硕士学位，基于元数据在分布式存储体系

    公开(公告)号：EP3036616A1

    公开(公告)日：2016-06-29

    申请号：EP14781721.7

    申请日：2014-09-11

    Applicant: NetApp, Inc.

    Inventor： ZHENG, Ling ,  LEWIS, Blake H. ,  PATEL, Kayuri H.

    IPC: G06F3/06

    Abstract: In one embodiment, a node coupled to one or more storage devices executes a storage input/output (I/O) stack having a volume layer. The volume layer manages volume metadata embodied as mappings from offsets of a logical unit (LUN) to extent keys associated with storage locations for extents on the one or more storage devices. Volume metadata is maintained as a dense tree metadata structure representing successive points in time. The dense tree metadata structure has multiple levels, wherein a top level of the dense tree metadata structure represents newer volume metadata changes and descending levels of the dense tree metadata structure represent older volume metadata changes. The node accesses a latest version of changes to the volume metadata by searching from the top level to the descending levels in the dense tree metadata structure.

    Abstract translation: 在一个，实施例的耦合到一个或多个存储设备执行具有层卷的存储输入/输出（I / O）堆栈的节点。 体积层管理体现为从与用于所述一个或多个存储装置的存储盘区的位置相关联程度密钥的逻辑单元（LUN）的偏移映射体积元数据。 卷元数据被保持作为表示时间连续点的致密树元数据结构。 致密树元数据结构有多个级别，worin致密树元数据结构的顶层darstellt较新的体积元数据的变化和降序致密树元数据结构的电平表示的年龄较大的体积元数据的变化。 节点通过从顶层到在茂密的树元数据结构的下降水平搜索访问最新版本更改卷的元数据。

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