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公开(公告)号：US10176058B2
公开(公告)日：2019-01-08
申请号：US15909613
申请日：2018-03-01
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Chengwei Zhang , Chuanshuai Yu , Zongquan Zhang
Abstract: 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.
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公开(公告)号：US20190215352A1
公开(公告)日：2019-07-11
申请号：US16352509
申请日：2019-03-13
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Chuanshuai Yu , Chengwei Zhang , Linbo Xu
IPC: H04L29/06 , H04L12/801 , G06F3/06
CPC classification number: H04L65/602 , G06F3/0608 , G06F3/0641 , G06F3/0673 , G06F17/3033 , G06F17/3053 , H04L47/10
Abstract: 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.
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公开(公告)号：US10540240B2
公开(公告)日：2020-01-21
申请号：US16212219
申请日：2018-12-06
Applicant: Huawei Technologies Co., Ltd.
Inventor： Chengwei Zhang , Chuanshuai Yu , Zongquan Zhang
Abstract: 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.
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公开(公告)号：US20180219930A1
公开(公告)日：2018-08-02
申请号：US15938845
申请日：2018-03-28
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Chuanshuai Yu , Chengwei Zhang , Linbo Xu
IPC: H04L29/06 , G06F3/06 , H04L12/801
CPC classification number: H04L65/602 , G06F3/0608 , G06F3/0641 , G06F3/0673 , G06F17/3033 , G06F17/3053 , H04L47/10
Abstract: 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.
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Patent Agency Ranking
公开(公告)号：US20180189151A1
公开(公告)日：2018-07-05
申请号：US15909613
申请日：2018-03-01
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Chengwei Zhang , Chuanshuai Yu , Zongquan Zhang
CPC classification number: G06F11/1469 , G06F3/0608 , G06F3/0619 , G06F3/064 , G06F3/065 , G06F11/14 , G06F11/1451 , G06F11/1453 , G06F11/1458 , G06F11/2094 , H03M7/46 , H03M13/15
Abstract: 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.
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公开(公告)号：US10542062B2
公开(公告)日：2020-01-21
申请号：US16352509
申请日：2019-03-13
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Chuanshuai Yu , Chengwei Zhang , Linbo Xu
IPC: H04L29/06 , H04L12/801 , G06F3/06 , G06F17/30
Abstract: 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.
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公开(公告)号：US10264045B2
公开(公告)日：2019-04-16
申请号：US15938845
申请日：2018-03-28
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Chuanshuai Yu , Chengwei Zhang , Linbo Xu
IPC: H04L29/06 , H04L12/801 , G06F3/06
Abstract: 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.
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公开(公告)号：US09967304B2
公开(公告)日：2018-05-08
申请号：US15235407
申请日：2016-08-12
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Chuanshuai Yu , Chengwei Zhang , Linbo Xu
IPC: H04L29/06 , H04L12/801 , G06F3/06
CPC classification number: H04L65/602 , G06F3/0608 , G06F3/0641 , G06F3/0673 , G06F17/3033 , G06F17/3053 , H04L47/10
Abstract: 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.
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公开(公告)号：US09906577B2
公开(公告)日：2018-02-27
申请号：US15235378
申请日：2016-08-12
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Chuanshuai Yu , Chengwei Zhang , Linbo Xu
IPC: H04L29/06 , H04L12/801 , G06F3/06
CPC classification number: H04L65/602 , G06F3/0608 , G06F3/0641 , G06F3/0673 , G06F17/3033 , G06F17/3053 , H04L47/10
Abstract: 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.
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