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1. 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.

2. 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.

3. 发明申请

US20180307416A1 SYSTEMS AND METHODS FOR REDUCING DATA FRAGMENTATION 审中-公开
公开(公告)号：US20180307416A1
公开(公告)日：2018-10-25
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： 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.

4. 发明申请

US20210303408A1 OPTIMIZE BACKUP FROM UNIVERSAL SHARE 有权
公开(公告)号：US20210303408A1
公开(公告)日：2021-09-30
申请号：US16835657
申请日：2020-03-31
申请人： Veritas Technologies LLC
发明人： Shuangmin Zhang , Xianbo Zhang , Shengzhao Li , Xu Jiang , Weibao Wu
IPC分类号： G06F11/14
摘要： A method and apparatus is disclosed for optimized backups. In one embodiment, the method includes creating a deduplicated universal share of data objects, which in turn includes receiving a universal share of the data objects, deduplicating the universal share, wherein deduplicating the universal share includes: hashing segments of the universal share to generate respective universal share segment fingerprints; comparing the universal share segment fingerprints to fingerprints for respective segments held in deduplication storage in order to identify segments in the deduplication storage that equate to the universal share segments, respectively, of the universal share; storing identifiers that directly or indirectly identify locations, respectively, of the segments, respectively, in the deduplication storage that equate to the universal share segments, respectively, of the universal share. After creating the deduplicated universal share, a deduplicated backup of the universal share is created without reassembling the universal share from segments held in the deduplication storage, the creating the deduplicated backup including: creating a list that comprises copies of the stored identifiers, and storing the list.

5. 发明授权

US11113247B1 Routing I/O requests to improve read/write concurrency 有权
公开(公告)号：US11113247B1
公开(公告)日：2021-09-07
申请号：US15150649
申请日：2016-05-10
申请人： Veritas Technologies LLC
发明人： Yingsong Jia , Xiangrui Liu , Hong Yu Jia , Shengzhao Li
IPC分类号： G06F16/176 , G06F16/11 , G06F16/182 , G06F16/174
摘要： Systems, apparatuses, methods, and computer readable mediums for implementing an I/O router to route requests based on characteristics of the requests. The I/O router may receive requests targeting a single file, and the I/O router may route requests to multiple extent maps based on characteristics of the requests. For example, requests of a first size may be mapped to a first extent map, requests of a second size may be mapped to a second extent map, requests of a third size may be mapped to a third extent map, and so on. Additionally, the system may utilize different deduplication policies for the different types of requests which are mapped to different extent maps.

6. 发明申请

US20180314597A1 BACKUP PERFORMANCE AFTER BACKUP FAILURE 审中-公开
公开(公告)号：US20180314597A1
公开(公告)日：2018-11-01
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： G06F11/14 , G06F17/30
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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