Method and apparatus for identifying and eliminating duplicate data blocks and sharing data blocks in a storage system
    1.
    发明授权
    Method and apparatus for identifying and eliminating duplicate data blocks and sharing data blocks in a storage system 有权
    用于识别和消除存储系统中的重复数据块和共享数据块的方法和装置

    公开(公告)号:US08849767B1

    公开(公告)日:2014-09-30

    申请号:US11105895

    申请日:2005-04-13

    IPC分类号: G06F17/30

    摘要: A method for sharing data blocks in a hierarchical file system in a storage server includes allocating a plurality of data blocks in the file system, and sharing data blocks in the file system, without using a persistent point-in-time image, to avoid duplication of data blocks. A method for identifying data blocks that can be shared includes computing a fingerprint for each of multiple data blocks to be written to a storage facility and storing the fingerprint with information identifying the data block in an entry in a set of metadata. The set of metadata is used to identify data blocks which are duplicates.

    摘要翻译: 一种用于在存储服务器中的分层文件系统中共享数据块的方法包括在文件系统中分配多个数据块,并且在不使用持久时间点图像的情况下共享文件系统中的数据块,以避免重复 的数据块。 一种用于识别可共享的数据块的方法包括:计算要写入存储设施的多个数据块中的每一个的指纹,以及将标识数据块的信息存储在一组元数据中的条目中。 元数据集用于识别重复的数据块。

    System and method for providing continuous data protection
    2.
    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。

    Method and Apparatus for Identifying and Eliminating Duplicate Data Blocks and Sharing Data Blocks in a Storage System
    3.
    发明申请
    Method and Apparatus for Identifying and Eliminating Duplicate Data Blocks and Sharing Data Blocks in a Storage System 有权
    用于识别和消除存储系统中重复数据块和共享数据块的方法和装置

    公开(公告)号:US20130262805A1

    公开(公告)日:2013-10-03

    申请号:US13901385

    申请日:2013-05-23

    IPC分类号: G06F3/06

    摘要: A method for sharing data blocks in a hierarchical file system in a storage server includes allocating a plurality of data blocks in the file system, and sharing data blocks in the file system, without using a persistent point-in-time image, to avoid duplication of data blocks. A method for identifying data blocks that can be shared includes computing a fingerprint for each of multiple data blocks to be written to a storage facility and storing the fingerprint with information identifying the data block in an entry in a set of metadata. The set of metadata is used to identify data blocks which are duplicates.

    摘要翻译: 一种用于在存储服务器中的分层文件系统中共享数据块的方法包括在文件系统中分配多个数据块,并且在不使用持久时间点图像的情况下共享文件系统中的数据块,以避免重复 的数据块。 一种用于识别可共享的数据块的方法包括:计算要写入存储设施的多个数据块中的每一个的指纹,以及将标识数据块的信息存储在一组元数据中的条目中。 元数据集用于识别重复的数据块。

    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 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。

    Method and apparatus for generating and describing block-level difference information about two snapshots
    6.
    发明授权
    Method and apparatus for generating and describing block-level difference information about two snapshots 有权
    用于生成和描述关于两个快照的块级差异信息的方法和装置

    公开(公告)号:US07562077B2

    公开(公告)日:2009-07-14

    申请号:US11093074

    申请日:2005-03-28

    IPC分类号: G06F17/30 G06F7/00

    摘要: An apparatus to compare two datasets, each of which includes multiple data blocks, includes a comparison unit and a report generator. The comparison unit identifies block-level differences therebetween, by comparing block-level metadata between the first and second datasets, without comparing the contents of the data blocks. The report generator generates a human-readable report of the differences between the first and second version of the dataset, including the differences in individual data blocks between the first and second version of the dataset.

    摘要翻译: 一种用于比较两个数据集的装置,每个数据集包括多个数据块,包括比较单元和报告生成器。 比较单元通过比较第一和第二数据集之间的块级元数据而不比较数据块的内容来识别它们之间的块级差异。 报告生成器生成数据集的第一个和第二个版本之间差异的可读报告,包括数据集的第一个和第二个版本之间的各个数据块的差异。

    System and method for managing data deduplication of storage systems utilizing persistent consistency point images
    7.
    发明授权
    System and method for managing data deduplication of storage systems utilizing persistent consistency point images 有权
    使用持久一致性点图像来管理存储系统的重复数据删除的系统和方法

    公开(公告)号:US08296260B2

    公开(公告)日:2012-10-23

    申请号:US12912333

    申请日:2010-10-26

    IPC分类号: G06F17/30

    摘要: A system and method for managing data deduplication of a storage system utilizing persistent consistency point images (PCPIs). Once a target PCPI of a data transfer is generated, a backup management module of the storage system alerts a data deduplication module to begin deduplication of the data contained within the target PCPI. Once the deduplication procedure has been completed, the active file system of the storage system has been deduplicated, however, the target PCPI remains un-deduplicated. In response, the backup management module generates and exports a revised target PCPI. The previous target PCPI may then be deleted, thereby transitioning the exported PCPI's image of the state of the file system to a deduplicated state.

    摘要翻译: 一种使用持久一致性点图像(PCPI)来管理存储系统的重复数据删除的系统和方法。 一旦产生了数据传输的目标PCPI,则存储系统的备份管理模块警告重复数据消除模块以开始重复数据删除目标PCPI中包含的数据。 重复数据删除过程完成后,存储系统的活动文件系统已被重复数据删除,但目标PCPI保持未重复数据删除。 作为响应,备份管理模块生成并导出修订的目标PCPI。 然后可以删除先前的目标PCPI,从而将导出的PCPI的​​文件系统的状态的图像转换为重复数据删除的状态。

    SYSTEM AND METHOD FOR MANAGING DATA DEDUPLICATION OF STORAGE SYSTEMS UTILIZING PERSISTENT CONSISTENCY POINT IMAGES
    8.
    发明申请
    SYSTEM AND METHOD FOR MANAGING DATA DEDUPLICATION OF STORAGE SYSTEMS UTILIZING PERSISTENT CONSISTENCY POINT IMAGES 有权
    用于管理使用持续一致性图像的存储系统的数据分配的系统和方法

    公开(公告)号:US20110035357A1

    公开(公告)日:2011-02-10

    申请号:US12912333

    申请日:2010-10-26

    IPC分类号: G06F17/00

    摘要: A system and method for managing data deduplication of a storage system utilizing persistent consistency point images (PCPIs). Once a target PCPI of a data transfer is generated, a backup management module of the storage system alerts a data deduplication module to begin deduplication of the data contained within the target PCPI. Once the deduplication procedure has been completed, the active file system of the storage system has been deduplicated, however, the target PCPI remains un-deduplicated. In response, the backup management module generates and exports a revised target PCPI. The previous target PCPI may then be deleted, thereby transitioning the exported PCPI's image of the state of the file system to a deduplicated state.

    摘要翻译: 一种使用持久一致性点图像(PCPI)来管理存储系统的重复数据删除的系统和方法。 一旦产生了数据传输的目标PCPI,则存储系统的备份管理模块警告重复数据消除模块以开始重复数据删除目标PCPI中包含的数据。 重复数据删除过程完成后,存储系统的活动文件系统已被重复数据删除,但目标PCPI保持未重复数据删除。 作为响应,备份管理模块生成并导出修订的目标PCPI。 然后可以删除先前的目标PCPI,从而将导出的PCPI的​​文件系统的状态的图像转换为重复数据删除的状态。

    System and method for managing data deduplication of storage systems utilizing persistent consistency point images
    9.
    发明申请
    System and method for managing data deduplication of storage systems utilizing persistent consistency point images 有权
    使用持久一致性点图像来管理存储系统的重复数据删除的系统和方法

    公开(公告)号:US20080005201A1

    公开(公告)日:2008-01-03

    申请号:US11478272

    申请日:2006-06-29

    IPC分类号: G06F17/30

    摘要: A system and method for managing data deduplication of a storage system utilizing persistent consistency point images (PCPIs). Once a target PCPI of a data transfer is generated, a backup management module of the storage system alerts a data deduplication module to begin deduplication of the data contained within the target PCPI. Once the deduplication procedure has been completed, the active file system of the storage system has been deduplicated, however, the target PCPI remains un-deduplicated. In response, the backup management module generates and exports a revised target PCPI. The previous target PCPI may then be deleted, thereby transitioning the exported PCPI's image of the state of the file system to a deduplicated state.

    摘要翻译: 一种使用持久一致性点图像(PCPI)来管理存储系统的重复数据删除的系统和方法。 一旦产生了数据传输的目标PCPI,则存储系统的备份管理模块警告重复数据消除模块以开始重复数据删除目标PCPI中包含的数据。 重复数据删除过程完成后,存储系统的活动文件系统已被重复数据删除,但目标PCPI保持未重复数据删除。 作为响应,备份管理模块生成并导出修订的目标PCPI。 然后可以删除先前的目标PCPI,从而将导出的PCPI的​​文件系统的状态的图像转换为重复数据删除的状态。

    System and method for managing data deduplication of storage systems utilizing persistent consistency point images
    10.
    发明授权
    System and method for managing data deduplication of storage systems utilizing persistent consistency point images 有权
    使用持久一致性点图像来管理存储系统的重复数据删除的系统和方法

    公开(公告)号:US07921077B2

    公开(公告)日:2011-04-05

    申请号:US11478272

    申请日:2006-06-29

    IPC分类号: G06F17/30

    摘要: A system and method for managing data deduplication of a storage system utilizing persistent consistency point images (PCPIs). Once a target PCPI of a data transfer is generated, a backup management module of the storage system alerts a data deduplication module to begin deduplication of the data contained within the target PCPI. Once the deduplication procedure has been completed, the active file system of the storage system has been deduplicated, however, the target PCPI remains un-deduplicated. In response, the backup management module generates and exports a revised target PCPI. The previous target PCPI may then be deleted, thereby transitioning the exported PCPI's image of the state of the file system to a deduplicated state.

    摘要翻译: 一种使用持久一致性点图像(PCPI)来管理存储系统的重复数据删除的系统和方法。 一旦产生了数据传输的目标PCPI,则存储系统的备份管理模块警告重复数据消除模块以开始重复数据删除目标PCPI中包含的数据。 重复数据删除过程完成后,存储系统的活动文件系统已被重复数据删除,但目标PCPI保持未重复数据删除。 作为响应,备份管理模块生成并导出修订的目标PCPI。 然后可以删除先前的目标PCPI,从而将导出的PCPI的​​文件系统的状态的图像转换为重复数据删除的状态。