Patents by Inventor Chuanshuai YU
Chuanshuai YU has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10540240Abstract: Embodiments of the present disclosure disclose a solution for data backup and recovery in a storage system. When a source device in the storage system backs up, to a backup-end device, a data block that is written after a snapshot Sn, the source device performs a logical operation such as an exclusive-NOR or exclusive-OR operation on the written data block and an original data block, which is recorded in the snapshot Sn, of the written data block, and then compresses a data block obtained after the logical operation, which improves a compression ratio of a data block, thereby reducing an amount of data that is sent to the backup-end device, and saving transmission bandwidth. The solution may be further applied to a scenario of data recovery in a storage system.Type: GrantFiled: December 6, 2018Date of Patent: January 21, 2020Assignee: Huawei Technologies Co., Ltd.Inventors: Chengwei Zhang, Chuanshuai Yu, Zongquan Zhang
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Patent number: 10542062Abstract: Embodiments of the present invention provide a method for searching for a data stream dividing point based on a server. In the embodiments of the present invention, a data stream dividing point is searched for by determining whether at least a part of data in a window of M windows meets a preset condition, and when the at least a part of data in the window does not meet the preset condition, a length of N*U is skipped, so as to obtain a next potential dividing point, thereby improving efficiency of searching for a data stream dividing point.Type: GrantFiled: March 13, 2019Date of Patent: January 21, 2020Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Chuanshuai Yu, Chengwei Zhang, Linbo Xu
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Publication number: 20190215352Abstract: Embodiments of the present invention provide a method for searching for a data stream dividing point based on a server. In the embodiments of the present invention, a data stream dividing point is searched for by determining whether at least a part of data in a window of M windows meets a preset condition, and when the at least a part of data in the window does not meet the preset condition, a length of N*U is skipped, so as to obtain a next potential dividing point, thereby improving efficiency of searching for a data stream dividing point.Type: ApplicationFiled: March 13, 2019Publication date: July 11, 2019Applicant: HUAWEI TECHNOLOGIES CO.,LTD.Inventors: Chuanshuai Yu, Chengwei Zhang, Linbo Xu
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Patent number: 10264045Abstract: Embodiments of the present invention provide a method for searching for a data stream dividing point based on a server. In the embodiments of the present invention, a data stream dividing point is searched for by determining whether at least a part of data in a window of M windows meets a preset condition, and when the at least a part of data in the window does not meet the preset condition, a length of N*U is skipped, so as to obtain a next potential dividing point, thereby improving efficiency of searching for a data stream dividing point.Type: GrantFiled: March 28, 2018Date of Patent: April 16, 2019Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Chuanshuai Yu, Chengwei Zhang, Linbo Xu
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Publication number: 20190108102Abstract: Embodiments of the present disclosure disclose a solution for data backup and recovery in a storage system. When a source device in the storage system backs up, to a backup-end device, a data block that is written after a snapshot Sn, the source device performs a logical operation such as an exclusive-NOR or exclusive-OR operation on the written data block and an original data block, which is recorded in the snapshot Sn, of the written data block, and then compresses a data block obtained after the logical operation, which improves a compression ratio of a data block, thereby reducing an amount of data that is sent to the backup-end device, and saving transmission bandwidth. The solution may be further applied to a scenario of data recovery in a storage system.Type: ApplicationFiled: December 6, 2018Publication date: April 11, 2019Inventors: Chengwei ZHANG, Chuanshuai YU, Zongquan ZHANG
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Patent number: 10176058Abstract: Embodiments of the present disclosure disclose a solution for data backup and recovery in a storage system. When a source device in the storage system backs up, to a backup-end device, a data block that is written after a snapshot Sn, the source device performs a logical operation such as an exclusive-NOR or exclusive-OR operation on the written data block and an original data block, which is recorded in the snapshot Sn, of the written data block, and then compresses a data block obtained after the logical operation, which improves a compression ratio of a data block, thereby reducing an amount of data that is sent to the backup-end device, and saving transmission bandwidth. The solution may be further applied to a scenario of data recovery in a storage system.Type: GrantFiled: March 1, 2018Date of Patent: January 8, 2019Assignee: Huawei Technologies Co., Ltd.Inventors: Chengwei Zhang, Chuanshuai Yu, Zongquan Zhang
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Publication number: 20180219930Abstract: Embodiments of the present invention provide a method for searching for a data stream dividing point based on a server. In the embodiments of the present invention, a data stream dividing point is searched for by determining whether at least a part of data in a window of M windows meets a preset condition, and when the at least a part of data in the window does not meet the preset condition, a length of N*U is skipped, so as to obtain a next potential dividing point, thereby improving efficiency of searching for a data stream dividing point.Type: ApplicationFiled: March 28, 2018Publication date: August 2, 2018Applicant: HUAWEI TECHNOLOGIES CO.,LTD.Inventors: Chuanshuai Yu, Chengwei Zhang, Linbo Xu
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Publication number: 20180189151Abstract: Embodiments of the present disclosure disclose a solution for data backup and recovery in a storage system. When a source device in the storage system backs up, to a backup-end device, a data block that is written after a snapshot Sn, the source device performs a logical operation such as an exclusive-NOR or exclusive-OR operation on the written data block and an original data block, which is recorded in the snapshot Sn, of the written data block, and then compresses a data block obtained after the logical operation, which improves a compression ratio of a data block, thereby reducing an amount of data that is sent to the backup-end device, and saving transmission bandwidth. The solution may be further applied to a scenario of data recovery in a storage system.Type: ApplicationFiled: March 1, 2018Publication date: July 5, 2018Applicant: HUAWEI TECHNOLOGIES CO.,LTD.Inventors: Chengwei Zhang, Chuanshuai Yu, Zongquan Zhang
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Patent number: 9967304Abstract: Embodiments of the present invention provide a method for searching for a data stream dividing point based on a server. In the embodiments of the present invention, a data stream dividing point is searched for by determining whether at least a part of data in a window of M windows meets a preset condition, and when the at least a part of data in the window does not meet the preset condition, a length of N*U is skipped, so as to obtain a next potential dividing point, thereby improving efficiency of searching for a data stream dividing point.Type: GrantFiled: August 12, 2016Date of Patent: May 8, 2018Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Chuanshuai Yu, Chengwei Zhang, Linbo Xu
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Patent number: 9906577Abstract: Embodiments of the present invention provide a method for searching for a data stream dividing point based on a server. In the embodiments of the present invention, a data stream dividing point is searched for by determining whether at least a part of data in a window of M windows meets a preset condition, and when the at least a part of data in the window does not meet the preset condition, a length of N*U is skipped, so as to obtain a next potential dividing point, thereby improving efficiency of searching for a data stream dividing point.Type: GrantFiled: August 12, 2016Date of Patent: February 27, 2018Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Chuanshuai Yu, Chengwei Zhang, Linbo Xu
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Publication number: 20170041367Abstract: Embodiments of the present invention provide a method for searching for a data stream dividing point based on a server. In the embodiments of the present invention, a data stream dividing point is searched for by determining whether at least a part of data in a window of M windows meets a preset condition, and when the at least a part of data in the window does not meet the preset condition, a length of N*U is skipped, so as to obtain a next potential dividing point, thereby improving efficiency of searching for a data stream dividing point.Type: ApplicationFiled: August 12, 2016Publication date: February 9, 2017Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Chuanshuai YU, Chengwei ZHANG, Linbo XU
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Publication number: 20160350026Abstract: Embodiments of the present invention provide a method for searching for a data stream dividing point based on a server. In the embodiments of the present invention, a data stream dividing point is searched for by determining whether at least a part of data in a window of M windows meets a preset condition, and when the at least a part of data in the window does not meet the preset condition, a length of N*U is skipped, so as to obtain a next potential dividing point, thereby improving efficiency of searching for a data stream dividing point.Type: ApplicationFiled: August 12, 2016Publication date: December 1, 2016Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Chuanshuai YU, Chengwei ZHANG, Linbo XU