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    • 3. 发明授权
    • Restoring deduplicated data objects from sequential backup devices
    • 从顺序备份设备恢复重复数据删除的数据对象
    • US08892603B2
    • 2014-11-18
    • US13479003
    • 2012-05-23
    • Matthew J. AnglinDavid M. CannonAvishai H. HochbergMark L. Yakushev
    • Matthew J. AnglinDavid M. CannonAvishai H. HochbergMark L. Yakushev
    • G06F17/30G06F11/14
    • G06F17/3015G06F11/1453G06F11/1469
    • Provided are computer program product, system, and method for restoring deduplicated data objects from sequential backup devices. A server stores data objects of extents having deduplicated data in the at least one sequential backup device. The server receives from a client a request for data objects. The server determines extents stored in the at least one sequential backup device for the requested data objects. The server or client sorts the extents according to an order in which they are stored in the at least one sequential backup device to generate a sort list. The server retrieves the extents from the at least one sequential backup device according to the order in the sort list to access the extents sequentially from the sequential backup device in the order in which they were stored. The server returns the retrieved extents to the client and the client reconstructs the requested data objects from the received extents.
    • 提供的是用于从顺序备份设备恢复重复数据删除的数据对象的计算机程序产品,系统和方法。 服务器将具有重复数据删除数据的盘区的数据对象存储在所述至少一个顺序备份设备中。 服务器从客户端接收对数据对象的请求。 服务器确定存储在所请求的数据对象的至少一个顺序备份设备中的区段。 服务器或客户端根据它们存储在至少一个顺序备份设备中的顺序对扩展区进行排序以生成排序列表。 服务器根据排序列表中的顺序从至少一个顺序备份设备中检索扩展数据块,以顺序备份设备按顺序从存储顺序访问扩展数据块。 服务器将检索到的扩展区返回到客户端,客户机从接收到的扩展区重新构建所请求的数据对象。
    • 4. 发明授权
    • Efficient transfer of deduplicated data
    • 有效传输重复数据删除的数据
    • US08788466B2
    • 2014-07-22
    • US12186239
    • 2008-08-05
    • Matthew J. AnglinDavid M. CannonHoward N. Martin
    • Matthew J. AnglinDavid M. CannonHoward N. Martin
    • G06F7/00
    • G06F3/0608G06F3/0641G06F3/0647G06F3/067
    • One aspect of the present invention includes enabling the efficient transfer of deduplicated data between storage pools in a storage management system without unnecessary reassembly and deduplication of data objects. In one embodiment, the storage management system tracks deduplication information for the data chunks of data objects within an index at the storage management system level, in addition to tracking storage information for each data object within another index at the storage management system level. The data chunk deduplication information is then accessible by any storage pool. Accordingly, transfers of the data objects and data chunks of the data object are easily facilitated, even between non-deduplicating and deduplicating storage pools.
    • 本发明的一个方面包括使得能够在存储管理系统中的存储池之间有效地传输重复数据删除的数据,而无需重新组装和重复数据对象。 在一个实施例中,除了跟踪在存储管理系统级别的另一个索引内的每个数据对象的存储信息之外,存储管理系统还跟踪存储管理系统级别的索引内的数据块的数据块的重复数据删除信息。 然后,任何存储池都可访问数据块重复数据删除信息。 因此,即使在非重复数据删除和重复数据删除存储池之间,数据对象的数据对象和数据块的传输也很容易。
    • 7. 发明授权
    • Data retention using logical objects
    • 使用逻辑对象的数据保留
    • US08214332B2
    • 2012-07-03
    • US12480549
    • 2009-06-08
    • Matthew J. AnglinAvishai H. HochbergToby L. MarekJames P. Smith
    • Matthew J. AnglinAvishai H. HochbergToby L. MarekJames P. Smith
    • G06F17/30
    • G06F11/1448G06F11/1458
    • Various embodiments are provided for facilitation of data retention using logical objects. Following an operation creating a redundant copy of the data performed on a scheduled interval, a logical object containing a number of managed file versions, represented by a number of member objects for a recovery point, is created. The logical object is assigned a policy of a data retention policy construct associated with the recovery point. The logical object is adapted for reassignment between policies of the data retention policy construct associated with various recovery points. During the reassignment, the plurality of member objects representing the plurality of managed file versions are logically retained instead of performing a data copy operation to associate the plurality of managed file versions with another recovery point.
    • 提供了各种实施例,用于使用逻辑对象促进数据保留。 在创建在计划的间隔上执行的数据的冗余副本的操作之后,创建包含多个受管文件版本的逻辑对象,由恢复点的多个成员对象表示。 逻辑对象被分配与恢复点相关联的数据保留策略构造的策略。 逻辑对象适用于与各种恢复点相关联的数据保留策略构造的策略之间的重新分配。 在重新分配期间,表示多个管理文件版本的多个成员对象被逻辑地保留,而不是执行数据复制操作以将多个被管理文件版本与另一恢复点相关联。
    • 8. 发明授权
    • Restoring a restore set of files from backup objects stored in sequential backup devices
    • 从存储在顺序备份设备中的备份对象恢复一组还原文件
    • US08209298B1
    • 2012-06-26
    • US12972291
    • 2010-12-17
    • Matthew J. AnglinDavid M. CannonAvishai H. HochbergDavid G. Van HiseMark L. Yakushev
    • Matthew J. AnglinDavid M. CannonAvishai H. HochbergDavid G. Van HiseMark L. Yakushev
    • G06F17/30
    • G06F11/1469G06F11/1453G06F11/1466
    • Provided are a computer program product, system, and method for restoring a restore set of files from backup objects stored in sequential backup devices. Backup objects are stored in at least one sequential backup device. A client initiates a restore request to restore a restore set of data in a volume as of a restore point-in-time. A determination is made of backup objects stored in at least one sequential backup device including the restore set of data for the restore point-in-time, wherein the determined backup objects are determined from a set of backup objects including a full volume backup and delta backups providing data in the volume at different points-in-time, and wherein extents in different backup objects providing data for blocks in the volume at different points-in-time are not stored contiguously in the sequential backup device. A determination is made of extents stored in the at least one sequential backup device for the determined backup objects. The determined extents are sorted according to an order in which they are stored in the at least one sequential backup device to generate a sort list. The extents are retrieved from the at least one sequential backup device according to the order in the sort list to access the extents sequentially from the sequential backup device in the order in which they were stored. The retrieved extents are returned to the client and the client reconstructs the restore data set from the received extents.
    • 提供了一种计算机程序产品,系统和方法,用于从存储在顺序备份设备中的备份对象恢复恢复文件集。 备份对象存储在至少一个顺序备份设备中。 客户端启动还原请求,以恢复卷中恢复的还原数据集。 确定存储在至少一个顺序备份设备中的备份对象,包括用于恢复时间点的还原数据集,其中所确定的备份对象由一组备份对象确定,包括全卷备份和增量 在不同时间点在卷中提供数据的备份,并且其中不同备份对象中的不同备份对象中的盘区在不同时间点为块中的块提供数据不会连续存储在顺序备份设备中。 确定存储在所确定的备份对象的至少一个顺序备份设备中的范围。 确定的区段根据它们存储在至少一个顺序备份设备中的顺序进行排序以生成排序列表。 根据排序列表中的顺序从至少一个顺序备份设备检索扩展数据块,以顺序备份设备按顺序从存储顺序访问区段。 检索到的盘区返回到客户端,客户机从收到的盘区重构恢复数据集。
    • 9. 发明申请
    • METHOD AND SYSTEM FOR ASSURING INTEGRITY OF DEDUPLICATED DATA
    • 用于确保重复数据的完整性的方法和系统
    • US20100299311A1
    • 2010-11-25
    • US12848486
    • 2010-08-02
    • Matthew J. AnglinDavid M. Cannon
    • Matthew J. AnglinDavid M. Cannon
    • G06F17/30
    • G06F17/30162G06F11/1453
    • The present invention provides for a system and method for assuring integrity of deduplicated data objects stored within a storage system. A data object is copied to secondary storage media, and a digital signature such as a checksum is generated of the data object. Then, deduplication is performed upon the data object and the data object is split into chunks. The chunks are combined when the data object is subsequently accessed, and a signature is generated for the reassembled data object. The reassembled data object is provided if the newly generated signature is identical to the originally generated signature, and otherwise a backup copy of the data object is provided from secondary storage media.
    • 本发明提供了一种确保存储在存储系统内的重复数据删除的数据对象的完整性的系统和方法。 将数据对象复制到辅助存储介质,并且生成诸如校验和的数字签名。 然后,对数据对象执行重复数据删除,数据对象被分割成块。 当随后访问数据对象时,组合块,并为重新组装的数据对象生成签名。 如果新生成的签名与原始生成的签名相同,则提供重组的数据对象,否则从辅助存储介质提供数据对象的备份副本。