公开(公告)号：US20210279210A1

公开(公告)日：2021-09-09

申请号：US17326890

申请日：2021-05-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yaron Mor ,  Aviv Kuvent ,  Asaf Yeger

IPC: G06F16/174 ,  G06F16/14 ,  G06F16/185 ,  H04L29/08

Abstract: A method for deduplicating at a global server for multiple storage servers includes receiving, from a storage server, a request to store a data chunk, determining whether the data chunk is highly-duplicated among the storage servers, accepting the request when the data chunk is highly-duplicated, and rejecting the request when the data chunk is not highly-duplicated.

公开(公告)号：US20240028725A1

公开(公告)日：2024-01-25

申请号：US18477124

申请日：2023-09-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： David Segal ,  Asaf Yeger ,  Assaf Natanzon ,  Michael Gutman ,  Shmoolik Yosub ,  Shahar Salzman

IPC: G06F21/56 ,  G06F21/55

CPC classification number: G06F21/566 ,  G06F21/554 ,  G06F2221/034

Abstract: Provided is a data processing arrangement (100, 200, 300, 400) that is coupled to a data memory arrangement (102) and is configured to generate a file catalog including information describing characteristics of data files stored within the data memory arrangement. The file catalog is periodically updated so that it provides a temporal record of the information. The data processing arrangement is configured to determine a behavioral profile (404) indicative of temporal trends or patterns in the information, and to provide a warning indication in an event that the information for a given data file temporally changes in a manner that deviates more than a threshold amount from a model of expected temporal trends or patterns of the given data file.

公开(公告)号：US20230086666A1

公开(公告)日：2023-03-23

申请号：US18072422

申请日：2022-11-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Asaf Yeger ,  Aviv Kuvent

IPC: G06F11/14 ,  G06F16/11 ,  G06F3/06 ,  G06F11/34

Abstract: An apparatus for dynamically scheduling a digital storage backup comprises at least one processor adapted to determine at least one backup parameter for a backup of a plurality of data blocks of a monitored non transitory storage. Determining the at least one backup parameter comprises: computing a storage classification for the plurality of data blocks according to a compliance of an amount of changes to a content of the plurality of data blocks with one or more threshold values, and determining the at least one backup parameter according to the classification.

公开(公告)号：US12099415B2

公开(公告)日：2024-09-24

申请号：US17902658

申请日：2022-09-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Asaf Yeger ,  Aviv Kuvent ,  Assaf Natanzon ,  Yaron Mor

IPC: G06F12/00 ,  G06F3/06 ,  G06F11/14

CPC classification number: G06F11/1458 ,  G06F3/0619 ,  G06F3/0644 ,  G06F3/065 ,  G06F3/0676 ,  G06F2201/84

Abstract: A backup entity and a method for backing up a disk volume of a production device are provided. The backup entity is configured to: create a first backup image of the disk volume, in a backup repository. Further, the backup entity is configured to obtain a first indication from the production device, wherein the first indication is indicative of a first operation to be performed by the production device on the disk volume. The backup entity is further configured to perform the first operation on the first backup image, to obtain a second backup image in the backup repository. According to the application, a solution to mimic an operation that changes data of a production storage, in a backup system, is provided, which can reduce the amount of data sent from the production storage to the backup system and thus reduce a backup window.

公开(公告)号：US20240012721A1

公开(公告)日：2024-01-11

申请号：US18472925

申请日：2023-09-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shmoolik Yosub ,  Assaf Natanzon ,  Asaf Yeger ,  Michael Gutman ,  Shahar Salzman ,  David Segal

IPC: G06F11/14

CPC classification number: G06F11/1469 ,  G06F11/1464 ,  G06F2201/84 ,  G06F2201/815

Abstract: Provided is a computer-implemented method of backup and restore in a network data storage system (200, 310). The method includes generating, at a predefined time interval, a series of one or more virtual snapshots including, for each item in the network data storage system: (i) a strong hash of the item data, and (ii) one or more metadata elements related to the item. The method includes, in response to a request to restore a particular item: (i) searching the series of virtual snapshots for all available sources of the particular item, (ii) identifying the best source for the particular item, and (iii) recovering item data for the particular item from the identified best source.

公开(公告)号：US20230409525A1

公开(公告)日：2023-12-21

申请号：US18462217

申请日：2023-09-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Asaf Yeger ,  Assaf Natanzon ,  Michael Gutman ,  Shmoolik Yosub ,  Shahar Salzman ,  David Segal ,  Idan Zach

IPC: G06F16/13 ,  G06F16/17

CPC classification number: G06F16/137 ,  G06F16/1727

Abstract: A method of data management in a data storage system including a plurality of data storage units, the method includes dividing each file in the data storage system into a plurality of blocks having a common size. The method further includes generating a hash value for each block using a common hash algorithm. The method further includes identifying a plurality of similar files in different data storage units, based on a comparison of the hashes for each file. The method further includes copying one or more of the identified similar files, such that similar files are stored in a single data storage unit and for one or more of the copied files, generating a link to a new location of the file. The method provides an efficient, effective, and adequate reduction of the primary storage as well as the secondary storage space.

公开(公告)号：US20220291852A1

公开(公告)日：2022-09-15

申请号：US17805053

申请日：2022-06-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yaron Mor ,  Assaf Natanzon ,  Aviv Kuvent ,  Asaf Yeger

IPC: G06F3/06

Abstract: A method and a global server for deduplicating multiple storage servers are disclosed. The global server maintains information regarding a set of hash values, each hash value being associated with a data chunk of data stored in the global server and/or the storage servers, receive, from one or more of the storage servers, a request to modify the information with respect to one or more hash values, accumulate and sort metadata related to the one or more requests, modifies the information with respect to the one or more hash values, based on the accumulated metadata when the accumulated metadata reaches a determined size.