System and method for restoring data on demand for instant volume restoration
    4.
    发明申请
    System and method for restoring data on demand for instant volume restoration 有权
    用于恢复即时卷恢复需求的数据的系统和方法

    公开(公告)号:US20070124341A1

    公开(公告)日:2007-05-31

    申请号:US11409626

    申请日:2006-04-24

    IPC分类号: G06F17/30

    CPC分类号: G06F17/30067

    摘要: A technique is disclosed for restoring data of sparse volumes, where one or more block pointers within the file system structure are marked as ABSENT, and fetching the appropriate data from an alternate location on demand. Client data access requests to the local storage system initiate a restoration of the data from a backing store as required. A demand generator can also be used to restore the data as a background process by walking through the sparse volume and restoring the data of absent blocks. A pump module is also disclosed to regulate the access of the demand generator. Once all the data has been restored, the volume contains all data locally, and is no longer a sparse volume.

    摘要翻译: 公开了一种用于恢复稀疏卷的数据的技术,其中文件系统结构中的一个或多个块指针被标记为ABSENT,并且根据需要从备用位置获取适当的数据。 对本地存储系统的客户端数据访问请求根据需要启动从后台存储器恢复数据。 还可以使用需求生成器通过遍历稀疏卷并恢复缺席块的数据来将数据恢复为后台进程。 还公开了一种泵模块来调节需求发生器的通路。 一旦所有数据都已恢复,卷将包含本地的所有数据,并且不再是稀疏卷。

    SYSTEM AND METHOD FOR RESTORING DATA ON DEMAND FOR INSTANT VOLUME RESTORATION
    5.
    发明申请
    SYSTEM AND METHOD FOR RESTORING DATA ON DEMAND FOR INSTANT VOLUME RESTORATION 审中-公开
    用于恢复数据的系统和方法用于即时容量恢复

    公开(公告)号:US20100325377A1

    公开(公告)日:2010-12-23

    申请号:US12870324

    申请日:2010-08-27

    IPC分类号: G06F12/16

    CPC分类号: G06F16/10

    摘要: A technique is disclosed for restoring data of sparse volumes, where one or more block pointers within the file system structure are marked as ABSENT, and fetching the appropriate data from an alternate location on demand. Client data access requests to the local storage system initiate a restoration of the data from a backing store as required. A demand generator can also be used to restore the data as a background process by walking through the sparse volume and restoring the data of absent blocks. A pump module is also disclosed to regulate the access of the demand generator. Once all the data has been restored, the volume contains all data locally, and is no longer a sparse volume.

    摘要翻译: 公开了一种用于恢复稀疏卷的数据的技术,其中文件系统结构中的一个或多个块指针被标记为ABSENT,并且根据需要从备用位置获取适当的数据。 对本地存储系统的客户端数据访问请求根据需要启动从后台存储器恢复数据。 还可以使用需求生成器通过遍历稀疏卷并恢复缺席块的数据来将数据恢复为后台进程。 还公开了一种泵模块来调节需求发生器的通路。 一旦所有数据都已恢复,卷将包含本地的所有数据,并且不再是稀疏卷。

    System and method for providing continuous data protection
    7.
    发明申请
    System and method for providing continuous data protection 有权
    提供连续数据保护的系统和方法

    公开(公告)号:US20070276878A1

    公开(公告)日:2007-11-29

    申请号:US11413882

    申请日:2006-04-28

    IPC分类号: G06F17/30

    CPC分类号: G06F11/1435 G06F17/30085

    摘要: A system and method provides continuous data protection using checkpoints in a write anywhere file system. During a consistency point of a write anywhere file system, freed blocks are identified and are appended to a delete log for retention. A consistency point log is updated with a new entry associated with the consistency point. If the file system needs to retrieve its state at a particular point in time, the stored blocks of the delete log may be recovered

    摘要翻译: 系统和方法使用写入任意文件系统中的检查点提供持续的数据保护。 在写入任何文件系统的一致性点中,自由块被识别并附加到删除日志以进行保留。 使用与一致性点相关联的新条目更新一致性点日志。 如果文件系统需要在特定时间点检索其状态,则可以恢复存储的删除日志块

    SYSTEM AND METHOD FOR SAMPLING BASED ELIMINATION OF DUPLICATE DATA
    8.
    发明申请
    SYSTEM AND METHOD FOR SAMPLING BASED ELIMINATION OF DUPLICATE DATA 有权
    用于抽样基于消除重复数据的系统和方法

    公开(公告)号:US20120197853A1

    公开(公告)日:2012-08-02

    申请号:US13443650

    申请日:2012-04-10

    IPC分类号: G06F17/30

    摘要: A technique for eliminating duplicate data is provided. Upon receipt of a new data set, one or more anchor points are identified within the data set. A bit-by-bit data comparison is then performed of the region surrounding the anchor point in the received data set with the region surrounding an anchor point stored within a pattern database to identify forward/backward delta values. The duplicate data identified by the anchor point, forward and backward delta values is then replaced in the received data set with a storage indicator.

    摘要翻译: 提供了一种消除重复数据的技术。 在接收到新的数据集之后,在数据集内识别一个或多个锚点。 然后,在包含存储在模式数据库内的锚定点周围的区域的接收数据集中围绕定位点的区域执行逐位数据比较,以识别前向/后向增量值。 由锚点,前向和后向增量值标识的重复数据随后用存储指示器在接收的数据集中替换。

    Incremental dump with a metadata container walk using inode-to-parent mapping information
    9.
    发明授权
    Incremental dump with a metadata container walk using inode-to-parent mapping information 有权
    使用元数据容器步进的增量转储使用inode-to-parent映射信息

    公开(公告)号:US08046333B1

    公开(公告)日:2011-10-25

    申请号:US12150936

    申请日:2008-04-30

    IPC分类号: G06F7/00 G06F13/00 G06F9/00

    CPC分类号: G06F17/30091

    摘要: An embodiment of the invention provides a traversal engine that traverses (walks) through metadata containers (e.g., inodes) in a file system and determines the metadata containers that have been modified (added, changed, deleted, or renamed) within a particular time interval. A modified metadata container corresponds to a data container (e.g., file or directory) that has been modified within the particular time interval. The traversal engine records, into a table, information about the modified metadata containers. The traversal engine also records, into the table, parent information corresponding to an immediate parent of a modified data container.

    摘要翻译: 本发明的一个实施例提供遍历(散布)通过文件系统中的元数据容器(例如,inode)的遍历引擎,并且确定在特定时间间隔内修改(添加,改变,删除或重命名)的元数据容器 。 经修改的元数据容器对应于在特定时间间隔内已被修改的数据容器(例如,文件或目录)。 遍历引擎在表中记录有关修改的元数据容器的信息。 遍历引擎还在表中记录与修改的数据容器的直接父代对应的父信息。

    System and method for providing continuous data protection
    10.
    发明授权
    System and method for providing continuous data protection 有权
    提供连续数据保护的系统和方法

    公开(公告)号:US07769723B2

    公开(公告)日:2010-08-03

    申请号:US11413882

    申请日:2006-04-28

    IPC分类号: G06F7/00

    CPC分类号: G06F11/1435 G06F17/30085

    摘要: A system and method provides continuous data protection using checkpoints in a write anywhere file system. During a consistency point of a write anywhere file system, freed blocks are identified and are appended to a delete log for retention. A consistency point log is updated with a new entry associated with the consistency point. If the file system needs to retrieve its state at a particular point in time, the stored blocks of the delete log may be recovered.

    摘要翻译: 系统和方法使用写入任意文件系统中的检查点提供持续的数据保护。 在写入任何文件系统的一致性点中,自由块被识别并附加到删除日志以进行保留。 使用与一致性点相关联的新条目更新一致性点日志。 如果文件系统需要在特定时间点检索其状态,则可以恢复存储的删除日志块。