公开(公告)号：US20220269431A1

公开(公告)日：2022-08-25

申请号：US17741079

申请日：2022-05-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ren REN ,  Zhongquan LIU ,  Hongwei LIU ,  Fangfang ZHU

IPC: G06F3/06

Abstract: This application provides a data processing method and a storage device, and belongs to the field of storage technologies. In this application, the storage device performs deduplication and compression based on different granularities, deduplicates data based on a large granularity, and compresses the data based on a small granularity. Therefore, a limitation that a deduplication granularity and a compression granularity need to be the same is removed. A deduplication ratio decrease caused by an excessively large granularity and a compression ratio decrease caused by an excessively small granularity are avoided to some extent, to improve an overall reduction ratio of deduplication and compression.

公开(公告)号：US20220164316A1

公开(公告)日：2022-05-26

申请号：US17671224

申请日：2022-02-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ren REN ,  Chen WANG ,  Pingjing GUO

IPC: G06F16/174

Abstract: A deduplication method and apparatus are provided. In the method, a fingerprint record that includes a plurality of fingerprint record items is first obtained, and at least two first fingerprint record items that include a same fingerprint are then determined from the fingerprint record. For example, the at least two first fingerprint record items each include a first fingerprint, so that deduplication is performed on data corresponding to the first fingerprints in the at least two first fingerprint record items. The at least two first fingerprint record items are deleted, a stub of the first fingerprint is recorded in the fingerprint record, and the stub of the first fingerprint indicates that the first fingerprint is a duplicated fingerprint.