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1. 发明授权

US08224875B1 Systems and methods for removing unreferenced data segments from deduplicated data systems 有权
标题翻译：从重复数据删除的数据系统中删除未引用的数据段的系统和方法
公开(公告)号：US08224875B1
公开(公告)日：2012-07-17
申请号：US12652333
申请日：2010-01-05
申请人： Mark Christiaens , Fanglu Guo , Weibao Wu
发明人： Mark Christiaens , Fanglu Guo , Weibao Wu
IPC分类号： G06F17/30
CPC分类号： G06F17/30303
摘要： A computer-implemented method for removing unreferenced data segments from deduplicated data systems may include: 1) identifying a deduplicated data system that contains a plurality of data segments, 2) identifying a plurality of containers within the deduplicated data system, with each container containing a subset of the data segments within the deduplicated data system, 3) identifying at least one container within the plurality of containers that is likely to include a large proportion of data segments that are not referenced by data objects within the deduplicated data system, and then, for each identified container, 4) searching for unreferenced data segments within the identified container and 5) removing the unreferenced data segments from the identified container. Various other methods, systems, and computer-readable media are also disclosed.
摘要翻译：用于从重复数据删除的数据系统中去除未引用的数据段的计算机实现的方法可以包括：1）识别包含多个数据段的重复数据删除的数据系统，2）识别重复数据删除数据系统内的多个容器，每个容器包含在重复数据删除的数据系统内的数据段的子集，3）识别多个容器内的至少一个可能包含大量数据段的容器，这些数据段不被重复数据删除的数据系统内的数据对象引用，对于每个已识别的容器，4）搜索所识别的容器内的未引用的数据段，以及5）从识别的容器中移除未引用的数据段。还公开了各种其它方法，系统和计算机可读介质。

2. 发明授权

US08224874B2 Systems and methods for removing unreferenced data segments from deduplicated data systems 有权
标题翻译：从重复数据删除的数据系统中删除未引用的数据段的系统和方法
公开(公告)号：US08224874B2
公开(公告)日：2012-07-17
申请号：US12652300
申请日：2010-01-05
申请人： Fanglu Guo , Mark Christiaens , Weibao Wu
发明人： Fanglu Guo , Mark Christiaens , Weibao Wu
IPC分类号： G06F17/30
CPC分类号： G06F3/0652 , G06F3/0608 , G06F3/0641 , G06F3/067 , G06F12/0253
摘要： A computer-implemented method for removing unreferenced data segments from deduplicated data systems may include: 1) identifying a deduplicated data system that contains a plurality of data objects, 2) dividing the data objects within the deduplicated data system into a plurality of data object groups, 3) identifying, within the data object groups, at least one data object group that has changed subsequent to a prior garbage-collection operation that removed data segments that were not referenced by data objects within the deduplicated data system, 4) identifying at least one container within the deduplicated data system that contains data segments referenced by data objects within the changed data object group, and then, for each identified container, 5) removing data segments from the identified container that are not referenced by data objects within the deduplicated data system. Various other methods, systems, and computer-readable media are also disclosed.
摘要翻译：用于从重复数据删除的数据系统中去除未引用的数据段的计算机实现的方法可以包括：1）识别包含多个数据对象的重复数据删除的数据系统，2）将重复数据删除的数据系统内的数据对象划分为多个数据对象组，3）在所述数据对象组内识别在先前的垃圾收集操作之后改变的至少一个数据对象组，所述数据对象组移除了未被重复数据删除的数据系统内的数据对象引用的数据段，4）至少识别在重复数据删除的数据系统中的一个容器，其中包含由更改的数据对象组内的数据对象引用的数据段，然后针对每个已标识的容器，5）从已识别的容器中删除未被重复数据删除的数据中的数据对象引用的数据段系统。还公开了各种其它方法，系统和计算机可读介质。

3. 发明申请

US20110167096A1 Systems and Methods for Removing Unreferenced Data Segments from Deduplicated Data Systems 有权
标题翻译：从重复数据删除数据系统中删除未引用的数据段的系统和方法
公开(公告)号：US20110167096A1
公开(公告)日：2011-07-07
申请号：US12652300
申请日：2010-01-05
申请人： Fanglu Guo , Mark Christiaens , Weibao Wu
发明人： Fanglu Guo , Mark Christiaens , Weibao Wu
IPC分类号： G06F17/00 , G06F12/00 , G06F12/16
CPC分类号： G06F3/0652 , G06F3/0608 , G06F3/0641 , G06F3/067 , G06F12/0253
摘要： A computer-implemented method for removing unreferenced data segments from deduplicated data systems may include: 1) identifying a deduplicated data system that contains a plurality of data objects, 2) dividing the data objects within the deduplicated data system into a plurality of data object groups, 3) identifying, within the data object groups, at least one data object group that has changed subsequent to a prior garbage-collection operation that removed data segments that were not referenced by data objects within the deduplicated data system, 4) identifying at least one container within the deduplicated data system that contains data segments referenced by data objects within the changed data object group, and then, for each identified container, 5) removing data segments from the identified container that are not referenced by data objects within the deduplicated data system. Various other methods, systems, and computer-readable media are also disclosed.
摘要翻译：用于从重复数据删除的数据系统中去除未引用的数据段的计算机实现的方法可以包括：1）识别包含多个数据对象的重复数据删除的数据系统，2）将重复数据删除的数据系统内的数据对象划分为多个数据对象组，3）在所述数据对象组内识别在先前的垃圾收集操作之后改变的至少一个数据对象组，所述数据对象组移除了未被重复数据删除的数据系统内的数据对象引用的数据段，4）至少识别在重复数据删除的数据系统中的一个容器，其中包含由更改的数据对象组内的数据对象引用的数据段，然后针对每个已标识的容器，5）从已识别的容器中删除未被重复数据删除的数据中的数据对象引用的数据段系统。还公开了各种其它方法，系统和计算机可读介质。

4. 发明授权

US08762338B2 Analyzing backup objects maintained by a de-duplication storage system 有权
标题翻译：分析由重复数据删除存储系统维护的备份对象
公开(公告)号：US08762338B2
公开(公告)日：2014-06-24
申请号：US12705306
申请日：2010-02-12
申请人： Mark Christiaens , Nick Cremelie , Mark Vertongen , Bastiaan Stougie
发明人： Mark Christiaens , Nick Cremelie , Mark Vertongen , Bastiaan Stougie
IPC分类号： G06F7/00 , G06F17/00 , G06F17/30
CPC分类号： G06F17/30371 , G06F11/1453 , G06F17/30156 , G06F17/30569 , G06F17/30917
摘要： Analyzing backup objects maintained by a de-duplication server. A plurality of first objects may be maintained. Each first object may refer to second object(s) and each second object may refer back to at least one first object. For each respective first object, the respective first object may be analyzed to determine the one or more second objects referred to by the respective first object. Correspondingly, a command may be generated for each respective second object of the determined second object(s), thereby generating a plurality of commands. Each command may be used to verify that the respective second object refers back to the respective first object. The plurality of commands may be sorted into a disk access order. The commands may be used to verify that each second object refers back to first objects that refer to the second object.
摘要翻译：分析由重复数据删除服务器维护的备份对象。可以维护多个第一对象。每个第一对象可以指代第二对象，并且每个第二对象可以指向至少一个第一对象。对于每个相应的第一对象，可以分析相应的第一对象以确定由相应的第一对象引用的一个或多个第二对象。相应地，可以为确定的第二对象的每个相应的第二对象生成命令，从而生成多个命令。可以使用每个命令来验证相应的第二对象是否指向相应的第一对象。多个命令可以被分类成磁盘访问顺序。命令可用于验证每个第二对象是否引用指向第二对象的第一对象。

5. 发明授权

US08214428B1 Optimized prepopulation of a client side cache in a deduplication environment 有权
标题翻译：在重复数据删除环境中优化客户端缓存的预填充
公开(公告)号：US08214428B1
公开(公告)日：2012-07-03
申请号：US12782648
申请日：2010-05-18
申请人： Mark Christiaens
发明人： Mark Christiaens
IPC分类号： G06F15/16
CPC分类号： G06F11/1453 , G06F11/1464
摘要： A backup cache on a client is prepopulated with fingerprints corresponding to data stored on a backup server. A plurality of fingerprints of data are received from the client, each received fingerprint corresponding to data present on the client which is subject to backup to the server. For each received fingerprint, an attempt is made to locate data corresponding to the received fingerprint stored on the backup server. Responsive to locating data corresponding to a received fingerprint stored on the backup server, data stored on the backup server considered to be “in the neighborhood” of the located data is identified. Fingerprints (e.g., hashes) identifying data stored on the backup server in the neighborhood of the located data are created and transmitted to the client, for prepopulating the backup cache on the client.
摘要翻译：客户机上的备份缓存预填充了与备份服务器上存储的数据相对应的指纹。从客户端接收多个数据指纹，每个指纹对应于客户机上存在的数据，该数据需要备份到服务器。对于每个接收到的指纹，尝试定位对应于存储在备份服务器上的接收到的指纹的数据。识别与存储在备份服务器上的接收到的指纹相对应的数据的响应，识别存储在所述备份服务器上的数据被认为是“在附近”的数据。创建识别存储在位于数据附近的备份服务器上的数据的指纹（例如哈希）并将其发送到客户机，以便在客户端上预备备份高速缓存。

6. 发明授权

US08806062B1 Adaptive compression using a sampling based heuristic 有权
标题翻译：使用基于抽样的启发式自适应压缩
公开(公告)号：US08806062B1
公开(公告)日：2014-08-12
申请号：US12413137
申请日：2009-03-27
申请人： Mark Vertongen , Bastiaan Stougie , Mark Christiaens
发明人： Mark Vertongen , Bastiaan Stougie , Mark Christiaens
IPC分类号： G06F15/16 , H04L29/08
CPC分类号： H04L29/08783 , G06F11/1451 , G06F11/1464 , H04L69/04
摘要： Various methods and systems for using adaptive data compression in a backup system are disclosed. One method involves detecting whether to compress a unit of storage that is to be backed up. The detecting involves attempting to compress a portion of the unit of storage. If the attempt to compress the portion of the unit of storage meets a specified compression performance threshold, i.e., if the unit of storage is compressible, the unit of storage is compressed. Otherwise the unit of storage is not compressed.
摘要翻译：公开了在备用系统中使用自适应数据压缩的各种方法和系统。一种方法涉及检测是否压缩要备份的存储单元。该检测涉及试图压缩存储单元的一部分。如果尝试压缩存储单元的部分满足指定的压缩性能阈值，即，如果存储单元是可压缩的，则存储单元被压缩。否则存储单元不被压缩。

7. 发明授权

US08108446B1 Methods and systems for managing deduplicated data using unilateral referencing 有权
标题翻译：使用单向引用来管理重复数据删除数据的方法和系统
公开(公告)号：US08108446B1
公开(公告)日：2012-01-31
申请号：US12147849
申请日：2008-06-27
申请人： Mark Christiaens
发明人： Mark Christiaens
IPC分类号： G06F12/00
CPC分类号： G06F17/30156 , G06F3/0608 , G06F3/0641 , G06F3/067
摘要： A computer-implemented method for managing deduplicated data using unilateral referencing may comprise: 1) identifying each file in the deduplicated data system, 2) identifying each data segment in the deduplicated data system that is referenced by at least one file in the deduplicated data system, and then 3) creating an active-data-segments set that identifies or references each data segment that is referenced by at least one file in the system. Data segments in the system that are not identified or referenced in the active-data-segments set may be removed. Corresponding systems and methods are also disclosed.
摘要翻译：用于使用单向引用来管理重复数据消除数据的计算机实现的方法可以包括：1）识别重复数据删除的数据系统中的每个文件，2）识别由重复数据删除的数据系统中的至少一个文件引用的重复数据删除的数据系统中的每个数据段，然后3）创建活动数据段集合，其标识或引用系统中至少一个文件所引用的每个数据段。可能会删除系统中未在活动数据段集中标识或引用的数据段。还公开了相应的系统和方法。

8. 发明申请

US20110082841A1 Analyzing Backup Objects Maintained by a De-Duplication Storage System 有权
标题翻译：分析由重复数据删除存储系统维护的备份对象
公开(公告)号：US20110082841A1
公开(公告)日：2011-04-07
申请号：US12705306
申请日：2010-02-12
申请人： Mark Christiaens , Nick Cremelie , Mark Vertongen , Bastiaan Stougie
发明人： Mark Christiaens , Nick Cremelie , Mark Vertongen , Bastiaan Stougie
IPC分类号： G06F17/00 , G06F7/00 , G06F9/44
CPC分类号： G06F17/30371 , G06F11/1453 , G06F17/30156 , G06F17/30569 , G06F17/30917
摘要： Analyzing backup objects maintained by a de-duplication server. A plurality of first objects may be maintained. Each first object may refer to second object(s) and each second object may refer back to at least one first object. For each respective first object, the respective first object may be analyzed to determine the one or more second objects referred to by the respective first object. Correspondingly, a command may be generated for each respective second object of the determined second object(s), thereby generating a plurality of commands. Each command may be used to verify that the respective second object refers back to the respective first object. The plurality of commands may be sorted into a disk access order. The commands may be used to verify that each second object refers back to first objects that refer to the second object.
摘要翻译：分析由重复数据删除服务器维护的备份对象。可以维护多个第一对象。每个第一对象可以指代第二对象，并且每个第二对象可以指向至少一个第一对象。对于每个相应的第一对象，可以分析相应的第一对象以确定由相应的第一对象引用的一个或多个第二对象。相应地，可以为确定的第二对象的每个相应的第二对象生成命令，从而生成多个命令。可以使用每个命令来验证相应的第二对象是否指向相应的第一对象。多个命令可以被分类成磁盘访问顺序。命令可用于验证每个第二对象是否引用指向第二对象的第一对象。

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