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1. 发明授权

US11327998B2 Replication between heterogeneous storage systems 有权
公开(公告)号：US11327998B2
公开(公告)日：2022-05-10
申请号：US16731145
申请日：2019-12-31
申请人： Veritas Technologies LLC
发明人： Xianbo Zhang , Weibao Wu , Timothy Stevens , Shuangmin Zhang
IPC分类号： G06F16/27 , G06F11/20 , G06F3/06 , G06F11/14 , H04L29/08 , H04L67/1095
摘要： Disclosed herein are systems, methods, and processes to perform replication between heterogeneous storage systems. In one embodiment, a request to perform a replication operation is sent by a target server to a source server, where the target server and the source server use different protocols to store data. A plurality of instructions, which are associated with a replication stream, are received from the source server by the target server, where the plurality of instructions comprise an include instruction to include existing data and a write instruction to write new data. A replication stream, which is associated with a backup stream stored on the source server, is also received from the source server, where the replication stream and the backup stream share a common format. The target server synthesizes a new replicated backup image, where the synthesizing comprises performing the include instruction and the write instruction on the replication stream.

2. 发明授权

US11163748B1 Fingerprint backward compatibility in deduplication backup systems 有权
公开(公告)号：US11163748B1
公开(公告)日：2021-11-02
申请号：US15798540
申请日：2017-10-31
申请人： Veritas Technologies LLC
发明人： Shuai Cheng , Xianbo Zhang , Cheng Shan , Chunzhong Zhang , Jinchang Zhang , Wen Feng Jiang , Dongxu Sun , Xinbao Jin
IPC分类号： G06F16/23 , G06F16/21 , H04L9/06
摘要： Disclosed herein are methods, systems, and processes to optimize and manage fingerprint backward compatibility in deduplication backup computing systems. A new fingerprint is generated for a segment object stored in a data container based on a new fingerprinting process. A header file is modified by replacing an old fingerprint for the segment object based on an old fingerprinting process with the new fingerprint. An entry including information indicating an association between the old fingerprint and the new fingerprint is created in a fingerprint map file.

3. 发明授权

US10599524B2 Backup performance after backup failure 有权
公开(公告)号：US10599524B2
公开(公告)日：2020-03-24
申请号：US15581320
申请日：2017-04-28
申请人： Veritas Technologies LLC
发明人： Shuangmin Zhang , Yongguo Yan , Xianbo Zhang , Kai Li , Weibao Wu , Shengzhao Li
IPC分类号： G06F16/00 , G06F11/14 , G06F16/11
摘要： Disclosed herein are methods, systems, and processes to improve backup performance after backup failure. It is determined whether a backup operation is successful. In response to a determination that the backup operation was unsuccessful, backup metadata associated with the backup operation is replaced with snapshot metadata associated with a snapshot that is taken at a first point in time that is prior to initiation of the backup operation. A rolled-back snapshot that permits another backup operation to be performed at a second point in time based on the snapshot metadata is then generated.

4. 发明授权

US11347424B1 Offset segmentation for improved inline data deduplication 有权
公开(公告)号：US11347424B1
公开(公告)日：2022-05-31
申请号：US16839140
申请日：2020-04-03
申请人： Veritas Technologies LLC
发明人： Xianbo Zhang , Yong Yang
IPC分类号： G06F12/00 , G06F3/06
摘要： Systems and methods for processing data segments are disclosed. In one embodiment, such functionality includes buffering data received from a node (where the data is stored in a buffer as buffered data, an offset value is associated with the data, and a segment size is associated with the buffer), and determining whether the offset value is an integer multiple of the segment size. In response to determination that the offset value is an integer multiple of the segment size, processing the data in the buffer as a segment. Such functionality also includes determining whether the segment is a duplicate of data stored in a deduplicated data store and, in response to a determination that the segment is not a duplicate of data stored in the deduplicated data store, storing the segment in the deduplicated data store.

5. 发明授权

US10324628B2 Systems and methods for reducing data fragmentation 有权
公开(公告)号：US10324628B2
公开(公告)日：2019-06-18
申请号：US15491626
申请日：2017-04-19
申请人： Veritas Technologies LLC
发明人： Shuangmin Zhang , Shengzhao Li , Xianbo Zhang , Kai Li , Weibao Wu
IPC分类号： G06F13/00 , G06F3/06 , G06F16/903 , G06F16/23 , G06F11/14
摘要： The disclosed computer-implemented method for reducing data fragmentation may include (1) identifying update data which updates an initial data set; (2) categorizing, using a database manager, the update data based on how the update data is expected to impact digital storage device resources; (3) storing the update data in a physical storage device in a physical order based on the category of the update data; and (4) updating, after storing the update data, an extent map indicating a mapping of logical locations of the update data to physical locations at which the update data is stored. Various other methods, systems, and computer-readable media are also disclosed.

6. 发明授权

US09946605B2 Systems and methods for taking snapshots in a deduplicated virtual file system 有权
公开(公告)号：US09946605B2
公开(公告)日：2018-04-17
申请号：US14952831
申请日：2015-11-25
申请人： Veritas Technologies LLC
发明人： Xianbo Zhang , Haigang Wang , Shuangmin Zhang , Jeffrey Van Voorst , Weibao Wu , Sameer Kulkarni , Nilesh Joshi , Kai Li , Yun Yang , Scott Brons
IPC分类号： G06F7/00 , G06F11/14 , G06F17/30 , G06F3/06
CPC分类号： G06F11/1453 , G06F3/0617 , G06F3/0641 , G06F3/0646 , G06F3/0683 , G06F17/30088 , G06F17/30156 , G06F17/30233 , G06F17/30371 , G06F2201/84
摘要： A computer-implemented method for taking snapshots in a deduplicated virtual file system may include (1) maintaining a deduplicated virtual file system that stores, at an original location within a non-virtual file system, at least one configuration file storing metadata for a target file and an extent map for the target file, the extent map defining how to construct the target file from deduplicated data segments in a deduplicated storage system, (2) receiving a request to take a snapshot of the target file corresponding to the configuration file, (3) copying the configuration file storing metadata for the target file and the extent map for the target file into a snapshot location within the non-virtual file system, and (4) transmitting a file reference request to the deduplicated storage system to add a file reference within the deduplicated storage system. Various other methods, systems, and computer-readable media are also disclosed.

7. 发明授权

US09575680B1 Deduplication rehydration 有权
标题翻译：重复数据消除补液
公开(公告)号：US09575680B1
公开(公告)日：2017-02-21
申请号：US14466210
申请日：2014-08-22
申请人： Veritas Technologies LLC
发明人： Lei Hu Zhang , Xianbo Zhang
IPC分类号： G06F12/16 , G06F3/06
CPC分类号： G06F11/1453 , G06F11/00
摘要： A method for deduplication rehydration is described. In one embodiment, a request to restore a backup image is received. The backup image is stored in a deduplication system. The backup image includes a plurality of data segments. The method includes determining locality information for at least one of the plurality of data segments. The locality information includes information regarding a location of the at least one data segment in relation to each other data segment of the plurality of data segments in the backup image. The method includes obtaining an identifier of each data container storing the plurality of data segments of the backup image, determining a degree to which the plurality of data segments of the backup image are processed by prefetching, and prefetching one or more of the plurality of target data segments from a data container based at least in part on a predetermined effectiveness threshold.
摘要翻译：描述了重复数据消除补液的方法。在一个实施例中，接收到恢复备份图像的请求。备份映像存储在重复数据删除系统中。备用图像包括多个数据段。该方法包括确定多个数据段中的至少一个的位置信息。所述地点信息包括与所述备用图像中的所述多个数据段中的每个其他数据段相关的关于所述至少一个数据段的位置的信息。该方法包括获得存储备份图像的多个数据段的每个数据容器的标识符，通过预取来确定备份图像的多个数据段的处理程度，并且预取多个目标中的一个或多个至少部分地基于预定有效性阈值来自数据容器的数据段。

8. 发明授权

US11132128B2 Systems and methods for data placement in container-based storage systems 有权
公开(公告)号：US11132128B2
公开(公告)日：2021-09-28
申请号：US15469157
申请日：2017-03-24
申请人： Veritas Technologies LLC
发明人： Xianbo Zhang , Weibao Wu , Jeffrey Van Voorst , Haigang Wang , Yong Yang , Shuangmin Zhang
IPC分类号： G06F3/06 , G06F12/0862
摘要： The disclosed computer-implemented method for data placement in container-based storage systems may include (i) identifying a file stored within a container-based storage system, where the container-based storage system stores the file as data segments within containers, (ii) receiving, in response to a write operation directed to the file, a request to store within the container-based storage system a new data segment generated by the write operation, (iii) describing the file in terms of a plurality of consecutive slabs, (iv) determining that the new data segment falls within a specified slab, and (v) fulfilling the request to store the new data segment within the container-based storage system by storing the new data segment in a designated container that corresponds to the specified slab in response to determining that the new data segment falls within the specified slab. Various other methods, systems, and computer-readable media are also disclosed.

9. 发明授权

US10545990B2 Replication between heterogeneous storage systems 有权
公开(公告)号：US10545990B2
公开(公告)日：2020-01-28
申请号：US15086361
申请日：2016-03-31
申请人： Veritas Technologies LLC
发明人： Xianbo Zhang , Weibao Wu , Timothy Stevens , Shuangmin Zhang
IPC分类号： G06F16/27 , G06F11/14 , G06F3/06 , G06F11/20 , H04L29/08
摘要： Disclosed herein are systems, methods, and processes to perform replication between heterogeneous storage systems. Information associated with a backup stream is recorded during a backup operation by a source server and includes instructions. The instructions include an include instruction to include existing data and a write instruction to write new data during a replication operation. A request to perform the replication operation is received. In response to the request, the information is sent to a target server as part of performing the replication operation.

10. 发明授权

US10423495B1 Deduplication grouping 有权
公开(公告)号：US10423495B1
公开(公告)日：2019-09-24
申请号：US14480507
申请日：2014-09-08
申请人： Veritas Technologies LLC
发明人： Fanglu Guo , Weibao Wu , Xianbo Zhang
IPC分类号： G06F16/00 , G06F11/14 , G06F16/28
摘要： A method for grouping backup images in deduplication groups is described. In one embodiment, the method includes identifying a new backup image, obtaining metadata from one or more nodes in the new backup image, and comparing the metadata from the one or more nodes in the new backup image with information from one or more nodes in a backup image from a first deduplication group. Each of the one or more nodes include at least in part a file or a directory. The first deduplication group is one group from a plurality of deduplication groups.

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