公开(公告)号：US11249846B2

公开(公告)日：2022-02-15

申请号：US16910924

申请日：2020-06-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yanxing Zeng ,  Liang Chen ,  Ruliang Dong ,  Jinyi Zhang ,  Kebo Fu

IPC: G06F11/00 ,  G06F11/10 ,  H03M13/15 ,  H03M13/00

Abstract: An erasure code (EC)-based data processing method implemented by a storage controller includes obtaining K data chunks, dividing each of the K data chunks into two data slices, encoding the 2*K data slices based on a parity matrix including 2*M rows and 2*(K+M) columns of elements, to obtain 2*M parity slices, and separately storing the K data chunks and the M parity chunks in different storage devices.

公开(公告)号：US20240134523A1

公开(公告)日：2024-04-25

申请号：US18401736

申请日：2024-01-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Sizhe Luo ,  Ruliang Dong ,  Hongde Zhu ,  Yong Sun

IPC: G06F3/06

CPC classification number: G06F3/0608 ,  G06F3/0638 ,  G06F3/0679

Abstract: In a data compression method, a computing device determines a compression feature value of to-be-compressed data based on a first parameter that affects a compression result of the to-be-compressed data. The computing device determines, based on the compression feature value, a compression policy for compressing the to-be-compressed data. The computing device then compresses the to-be-compressed data according to the compression policy to obtain compressed data, and stores the compressed data.

公开(公告)号：US12131051B2

公开(公告)日：2024-10-29

申请号：US18149288

申请日：2023-01-03

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kebo Fu ,  Liang Chen ,  Ruliang Dong ,  Xiang Wu ,  Xiaodong Luo

IPC: G06F3/06 ,  H03M13/35 ,  H03M13/37

CPC classification number: G06F3/0652 ,  G06F3/0619 ,  G06F3/0647 ,  G06F3/067 ,  H03M13/35 ,  H03M13/373

Abstract: In a data storage method, a storage system comprises first and second medium layers for data storage, wherein the performance of the first medium layer is different from the performance of the second medium layer. Based on the performance difference between the two layers, the storage system stores data in the first medium layer and the second medium layer based on different erasure code ratios. The different erasure code ratios correspond to different write amplification, and result in different storage space utilization.

公开(公告)号：US11385828B2

公开(公告)日：2022-07-12

申请号：US16654982

申请日：2019-10-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ruliang Dong ,  Haixiao Jiang ,  Jinyi Zhang ,  Qiang Xue ,  Jianqiang Shen ,  Gongyi Wang

IPC: G06F3/06

Abstract: A method for obtaining a storage system capacity is provided. An available capacity that is of a storage system and that is associated with each stripe length is obtained based on an obtained stripe length that can be effectively configured. Therefore, an available capacity of a system is optimally selected.

公开(公告)号：US12099404B2

公开(公告)日：2024-09-24

申请号：US17746188

申请日：2022-05-17

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Liang Chen ,  Ruliang Dong ,  Jinyi Zhang ,  Qiang Liu ,  Qizhao Yuan

IPC: G06F11/10 ,  G06F9/30 ,  G06F9/50

CPC classification number: G06F11/1004 ,  G06F9/30029 ,  G06F9/5016

Abstract: A method and apparatus for determining stripe consistency, including an operation node that obtains n groups of CRC data blocks corresponding to a target stripe, where the target stripe includes n first data blocks, the n first data blocks include k original data blocks and m EC data blocks of the k original data blocks, the n groups of CRC data blocks are respective CRC data blocks of n groups of second data blocks, one group of second data blocks includes m transformation results obtained by performing m times of EC transformation on one first data block, both k and m are positive integers, and n=m+k.

公开(公告)号：US20240231626A1

公开(公告)日：2024-07-11

申请号：US18614046

申请日：2024-03-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianhong Tu ,  Ruliang Dong ,  Jinyi Zhang ,  Pei Wu

IPC: G06F3/06

CPC classification number: G06F3/061 ,  G06F3/0655 ,  G06F3/0676

Abstract: A data processing method is provided. The method includes: obtaining a parameter related to performance of a memory of a storage node, adjusting an aggregation policy based on the parameter, aggregating a first input output IO request in the memory into a second IO request based on an adjusted aggregation policy, and performing persistent storage on data corresponding to the second IO request.

公开(公告)号：US12135609B2

公开(公告)日：2024-11-05

申请号：US17574069

申请日：2022-01-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jinyi Zhang ,  Ruliang Dong ,  Liang Chen ,  Qiang Xue

IPC: G06F11/10 ,  G06F3/06 ,  G06F11/14

Abstract: A method describes that a lost first block in a first stripe is directly reconstructed based on a first result obtained from a target quantity of storage devices, so that there is no need to read an unlost block in the first stripe. The first block may be reconstructed provided that the target quantity of first results are obtained. An amount of data of the first result is less than that of the unlost block in the first stripe. Therefore, a data transmission process occupies less network bandwidth, and this improves block reconstruction performance.

公开(公告)号：US20240264773A1

公开(公告)日：2024-08-08

申请号：US18613698

申请日：2024-03-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ruliang Dong ,  Ge Du ,  Huawei Liu ,  Jinyi Zhang

IPC: G06F3/06

CPC classification number: G06F3/0659 ,  G06F3/0611 ,  G06F3/067

Abstract: A data prefetching method includes a computing node obtaining information about accessing a storage node by a first application in a preset time period. The computing node determines information about prefetch data based on the access information. The computing node determines, based on the information about the prefetch data, a cache node prefetching the prefetch data, and generates a prefetch request for prefetching the prefetch data. The computing node sends the prefetch request to the cache node. The cache node performs a prefetching operation on the prefetch data in response to the prefetch request.

公开(公告)号：US20240231616A9

公开(公告)日：2024-07-11

申请号：US18401736

申请日：2024-01-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Sizhe Luo ,  Ruliang Dong ,  Hongde Zhu ,  Yong Sun

IPC: G06F3/06

CPC classification number: G06F3/0608 ,  G06F3/0638 ,  G06F3/0679

Abstract: In a data compression method, a computing device determines a compression feature value of to-be-compressed data based on a first parameter that affects a compression result of the to-be-compressed data. The computing device determines, based on the compression feature value, a compression policy for compressing the to-be-compressed data. The computing device then compresses the to-be-compressed data according to the compression policy to obtain compressed data, and stores the compressed data.

公开(公告)号：US20230350807A1

公开(公告)日：2023-11-02

申请号：US18344417

申请日：2023-06-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haixin Wang ,  Ruliang Dong ,  Pei Wu ,  Jianhong Tu

IPC: G06F12/02 ,  G06F13/16 ,  G06F12/0862

CPC classification number: G06F12/0862 ,  G06F12/0246 ,  G06F13/1678

Abstract: A data prefetch method is disclosed. Before data is prefetched, a first data access request is first obtained, and a data prefetch policy is determined based on the first data access request and a data lifecycle, so that a first data set stored in a second storage medium is stored into a first storage medium according to the data prefetch policy. The first data set includes at least one piece of data, the data prefetch policy includes at least a prefetch length, the data lifecycle indicates duration for storing data in the first storage medium, and a read/write access rate of the second storage medium is less than that of the first storage medium.