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公开(公告)号：US11995040B2
公开(公告)日：2024-05-28
申请号：US16882593
申请日：2020-05-25
Applicant: EMC IP Holding Company LLC
Inventor： Chao Lin , Yuting Zhang
IPC: G06F16/174 , G06F11/14 , G06F16/14 , G06F16/182
CPC classification number: G06F16/1748 , G06F11/1451 , G06F11/1464 , G06F16/152 , G06F16/1824 , G06F2201/80
Abstract: Embodiments of the present disclosure relate to a multi-node storage system and a data deduplication method thereof. The method includes determining a similarity hash value of a super block, wherein the similarity hash value indicates similarity between super blocks The method further includes comparing the similarity hash value of the super block with a feature similarity hash value of a node of the multi-node storage system to determine whether the super block matches the node and, in response to determining that the super block matches the node, allocating the super block to the node.
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公开(公告)号：US11782802B2
公开(公告)日：2023-10-10
申请号：US17386961
申请日：2021-07-28
Applicant: EMC IP Holding Company LLC
Inventor： Chao Lin , Yuting Zhang
CPC classification number: G06F11/1469 , G06F11/1451 , G06F11/1464 , G06F11/1484
Abstract: Embodiments of the present disclosure provide a method, an electronic device, and a computer program product for data protection. The method described here includes backing up an identifier of an application wrapper operating on a source platform and application data to a repository. The method further includes acquiring a container mirror image based on an identifier of a target platform and the identifier of the application wrapper that is restored from the repository, the container mirror image targeting the application wrapper operating on the target platform. The method further includes applying the application data restored from the repository to a container started from the container mirror image. With the solution of data protection of the present application, it is possible to efficiently migrate applications on a source platform to multiple different types of target platforms flexibly by backing up only application data and identifiers of application wrappers, thus improving the efficiency of data protection.
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公开(公告)号：US20210303170A1
公开(公告)日：2021-09-30
申请号：US16888818
申请日：2020-05-31
Applicant: EMC IP Holding Company LLC
Inventor： Chao Lin , Yuting Zhang , Qianyun Cheng
IPC: G06F3/06
Abstract: Embodiments of the present disclosure provide a storage management method, an electronic device, and a computer program product. The method includes determining at least one count corresponding to at least one data segment of a file in a file set, the file set being stored in a local storage device, and the at least one count indicating the number of occurrences of the at least one data segment in the file set. The method further includes determining a deduplication ratio of the file based on the at least one count, the deduplication ratio indicating an overlapping level of the file with other files in the file set. The method further includes migrating the file from the local storage device to a remote storage device according to a determination that the deduplication ratio of the file is lower than a threshold.
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公开(公告)号：US20210117289A1
公开(公告)日：2021-04-22
申请号：US16804302
申请日：2020-02-28
Applicant: EMC IP Holding Company LLC
IPC: G06F11/14 , G06F16/16 , G06F16/182
Abstract: Embodiments of the present disclosure provide a method for file backup, an electronic device and a computer program product. The method comprises: dividing a set of files to be backed up into a plurality of subsets of files, files in each of the plurality of subsets of files being of a same file type. The method also comprises: generating a plurality of backup files based on the plurality of subsets of files respectively, the plurality of backup files corresponding to a plurality of file types of files in the plurality of subsets of files respectively. The method further comprises: generating an overall backup file corresponding to the set of files based on the plurality of backup files.
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公开(公告)号：US10969964B2
公开(公告)日：2021-04-06
申请号：US16555226
申请日：2019-08-29
Applicant: EMC IP Holding Company LLC
Inventor： Yuting Zhang , Chao Lin , Fei Peng
Abstract: A method, a device, and a computer program product for parallel data transmission are provided in embodiments of the present disclosure. The method includes obtaining attributes of data to be transmitted from a first storage device to a second storage device and a network condition between the first storage device and the second storage device. The method also includes determining a number of concurrencies and a data slice size for use in parallel transmission of the data based on the attributes of the data and the network condition, and transmitting the data in parallel between the first storage device and the second storage device using the determined number of concurrencies and the data slice size. In embodiments of the present disclosure, during parallel data transmission, the appropriate number of concurrencies and data slice size can be selected according to attributes of data to be transmitted and an actual network condition.
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Patent Agency Ranking
公开(公告)号：US11513947B2
公开(公告)日：2022-11-29
申请号：US16888788
申请日：2020-05-31
Applicant: EMC IP Holding Company LLC
Abstract: Embodiments of the present disclosure relate to establishing and verifying an index file. The method for establishing an index file includes: in response to receiving a data block to be stored, determining first verification information for verifying the data block and a first storage address for storing the data block. This method further includes: based on the first verification information, determining an index entry for the data block and a second storage address for storing the index entry, wherein the index entry includes the first verification information and the first storage address, and the index entry will be included in the index file. This method further includes: based on the index entry and the second storage address, determining second verification information. This method further includes: based on the second verification information and historical verification information for the index file, determining third verification information for verifying the index file.
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公开(公告)号：US11243932B2
公开(公告)日：2022-02-08
申请号：US16917843
申请日：2020-06-30
Applicant: EMC IP Holding Company LLC
Abstract: The present disclosure relates to a method, a device, and a computer program product for managing indexes in a storage system. The storage system includes storage data. In the method, a first set of data objects associated with the storage data is acquired. A first set of hashes of the first set of data objects is determined respectively. Hashes in the first set of hashes are hashes of data objects in the first set of data objects. A first file is generated in the storage system to store the first set of hashes. A first name of the first file is determined based on the hashes in the first set of hashes. An index of the storage data is created based on the first file.
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公开(公告)号：US20210303538A1
公开(公告)日：2021-09-30
申请号：US16917843
申请日：2020-06-30
Applicant: EMC IP Holding Company LLC
Abstract: The present disclosure relates to a method, a device, and a computer program product for managing indexes in a storage system. The storage system includes storage data. In the method, a first set of data objects associated with the storage data is acquired. A first set of hashes of the first set of data objects is determined respectively. Hashes in the first set of hashes are hashes of data objects in the first set of data objects. A first file is generated in the storage system to store the first set of hashes. A first name of the first file is determined based on the hashes in the first set of hashes. An index of the storage data is created based on the first file.
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公开(公告)号：US20210303458A1
公开(公告)日：2021-09-30
申请号：US16888788
申请日：2020-05-31
Applicant: EMC IP Holding Company LLC
IPC: G06F12/02 , G06F12/0864 , G06F9/30 , G06F11/30 , G06F21/60
Abstract: Embodiments of the present disclosure relate to establishing and verifying an index file. The method for establishing an index file includes: in response to receiving a data block to be stored, determining first verification information for verifying the data block and a first storage address for storing the data block. This method further includes: based on the first verification information, determining an index entry for the data block and a second storage address for storing the index entry, wherein the index entry includes the first verification information and the first storage address, and the index entry will be included in the index file. This method further includes: based on the index entry and the second storage address, determining second verification information. This method further includes: based on the second verification information and historical verification information for the index file, determining third verification information for verifying the index file.
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公开(公告)号：US11947496B2
公开(公告)日：2024-04-02
申请号：US16882593
申请日：2020-05-25
Applicant: EMC IP Holding Company LLC
Inventor： Chao Lin , Yuting Zhang
IPC: G06F16/174 , G06F11/14 , G06F16/14 , G06F16/182
CPC classification number: G06F16/1748 , G06F11/1451 , G06F11/1464 , G06F16/152 , G06F16/1824 , G06F2201/80
Abstract: Embodiments of the present disclosure relate to a multi-node storage system and a data deduplication method thereof. The method includes determining a similarity hash value of a super block, wherein the similarity hash value indicates similarity between super blocks The method further includes comparing the similarity hash value of the super block with a feature similarity hash value of a node of the multi-node storage system to determine whether the super block matches the node and, in response to determining that the super block matches the node, allocating the super block to the node.
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