US 11,755,207 B2
Data storage method in storage system and related device
Kun Guan, Saint Petersburg (RU); Bang Liu, Saint Petersburg (RU); Liyu Wang, Xi'an (CN); Shaohui Quan, Hangzhou (CN); and Liangxiang Zhang, Hangzhou (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed on Jun. 15, 2022, as Appl. No. 17/840,982.
Application 17/840,982 is a continuation of application No. PCT/CN2020/133542, filed on Dec. 3, 2020.
Claims priority of application No. 201911312004.2 (CN), filed on Dec. 18, 2019.
Prior Publication US 2022/0308765 A1, Sep. 29, 2022
Int. Cl. G06F 12/00 (2006.01); G06F 3/06 (2006.01)
CPC G06F 3/0613 (2013.01) [G06F 3/0608 (2013.01); G06F 3/0641 (2013.01); G06F 3/0683 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A data storage method comprising:
calculating a similar fingerprint of first to-be-stored data to obtain a first similar fingerprint, wherein the first similar fingerprint is for determining whether the first to-be-stored data is similar to stored data;
determining reference data based on the first similar fingerprint, wherein a similar fingerprint of the reference data is the first similar fingerprint;
determining first differential data between the first to-be-stored data and the reference data based on the reference data, wherein the reference data is stored in a first storage unit; and
storing the first differential data in a second storage unit, wherein the first storage unit and the second storage unit belong to a read range of a same read input/output (I/O).