公开(公告)号：US20240419600A1

公开(公告)日：2024-12-19

申请号：US18818955

申请日：2024-08-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zehui CHEN ,  Ruliang DONG

IPC: G06F12/084

Abstract: The present disclosure relates to methods and apparatuses for managing a shared cache. One example method includes determining an access characteristic of accessing the shared cache by IO requests of each of K types that access the shared cache, determining a partition size and an eviction algorithm of the IO requests of each type in the shared cache based on the determined access characteristic and a hit rate of the shared cache, and configuring a cache size of the IO requests of each type in the shared cache as the determined partition size, and configuring an eviction algorithm of the IO requests of each type in the shared cache as the determined eviction algorithm.

公开(公告)号：US20220276925A1

公开(公告)日：2022-09-01

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

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：US20220138046A1

公开(公告)日：2022-05-05

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 ,  G06F11/14 ,  G06F3/06

Abstract: The present disclosure discloses a data reconstruction method and apparatus, a computer device, and a storage medium and system, and pertains to the field of data storage technologies. According to the method, 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.