IMPROVED APPARATUS AND METHOD FOR PERFORMING SNAPSHOTS OF BLOCK-LEVEL STORAGE DEVICES
    1.
    发明申请
    IMPROVED APPARATUS AND METHOD FOR PERFORMING SNAPSHOTS OF BLOCK-LEVEL STORAGE DEVICES 审中-公开
    改进的设备和方法,用于执行块级存储设备的快照

    公开(公告)号:WO2016054582A1

    公开(公告)日:2016-04-07

    申请号:PCT/US2015/053840

    申请日:2015-10-02

    Abstract: An improved apparatus and method for performing snapshots of a logical volume within a block-level storage devices is disclosed. When a snapshot is created, the logical volume manager determines the blocks in the relevant volume that are not allocated and lists those blocks in an exception table. Upon receiving a write request, the volume manager checks the exception table to determine whether the specific block in question is unallocated. If it is allocated, the volume manager performs a copy-on-write for the block for the snapshot. If it is unallocated, the volume manager does not copy the block. This results in significant efficiency, since copy-on-write operations will not be performed for unallocated blocks within a snapshot volume.

    Abstract translation: 公开了一种用于在块级存储设备内执行逻辑卷的快照的改进的装置和方法。 当创建快照时,逻辑卷管理器确定相关卷中未分配的块,并在异常表中列出这些块。 在收到写请求之后,卷管理器检查异常表以确定所讨论的特定块是否未分配。 如果已分配,则卷管理器将为快照的块执行写时复制。 如果未分配,则卷管理器不会复制该块。 这将导致显着的效率,因为不会对快照卷内的未分配块执行写时操作。

    PARALLEL ASYNCHRONOUS DATA REPLICATION
    4.
    发明申请
    PARALLEL ASYNCHRONOUS DATA REPLICATION 审中-公开
    并行异步数据复制

    公开(公告)号:WO2016141094A1

    公开(公告)日:2016-09-09

    申请号:PCT/US2016/020502

    申请日:2016-03-02

    Abstract: A primary data storage system and a secondary data storage system are connected with a mesh of network connections during replication procedures from the primary storage system to the secondary storage system. In some implementations, at the primary storage system, file system metadata is analyzed for different subsets of the primary file system to determine changed and/or potentially changed files and/or directories for each subset. Change information is communicated from the primary storage system for a plurality of the subsets to a secondary storage system in parallel to a plurality of network addresses assigned to network ports of the secondary storage system.

    Abstract translation: 在从主存储系统到辅助存储系统的复制过程期间,主数据存储系统和辅助数据存储系统与网络连接的网格连接。 在一些实施方式中,在主存储系统中,分析文件系统元数据以分析主文件系统的不同子集,以确定每个子集的改变和/或潜在改变的文件和/或目录。 将变化信息从多个子集的主存储系统传送到辅助存储系统并行于分配给辅助存储系统的网络端口的多个网络地址。

Patent Agency Ranking