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公开(公告)号：US10599524B2
公开(公告)日：2020-03-24
申请号：US15581320
申请日：2017-04-28
发明人： Shuangmin Zhang , Yongguo Yan , Xianbo Zhang , Kai Li , Weibao Wu , Shengzhao Li
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.
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公开(公告)号：US10324628B2
公开(公告)日：2019-06-18
申请号：US15491626
申请日：2017-04-19
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.
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公开(公告)号：US09946605B2
公开(公告)日：2018-04-17
申请号：US14952831
申请日：2015-11-25
发明人： Xianbo Zhang , Haigang Wang , Shuangmin Zhang , Jeffrey Van Voorst , Weibao Wu , Sameer Kulkarni , Nilesh Joshi , Kai Li , Yun Yang , Scott Brons
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.
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公开(公告)号：US20180307416A1
公开(公告)日：2018-10-25
申请号：US15491626
申请日：2017-04-19
发明人： Shuangmin Zhang , Shengzhao Li , Xianbo Zhang , Kai Li , Weibao Wu
IPC分类号： G06F3/06
CPC分类号： G06F3/0608 , G06F3/064 , G06F3/0659 , G06F3/0683 , G06F17/30345 , G06F17/30988
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.
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公开(公告)号：US20180314597A1
公开(公告)日：2018-11-01
申请号：US15581320
申请日：2017-04-28
发明人： Shuangmin Zhang , Yongguo Yan , Xianbo Zhang , Kai Li , Weibao Wu , Shengzhao Li
CPC分类号： G06F11/1451 , G06F11/1435 , G06F11/1448 , G06F11/1464 , G06F11/1469 , G06F16/128 , G06F2201/84
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.
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