US 12,293,100 B2
Data writing method, data reading method, apparatus, device, system, and medium
Jiwu Shu, Beijing (CN); Youyou Lu, Beijing (CN); Jian Gao, Beijing (CN); Xiaodong Tan, Hangzhou (CN); and Wenlin Cui, Chengdu (CN)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN); and Tsinghua University, Beijing (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN); and TSINGHUA UNIVERSITY, Beijing (CN)
Filed on Jan. 17, 2024, as Appl. No. 18/415,352.
Application 18/415,352 is a continuation of application No. PCT/CN2022/078066, filed on Feb. 25, 2022.
Claims priority of application No. 202110814096.5 (CN), filed on Jul. 19, 2021.
Prior Publication US 2024/0152290 A1, May 9, 2024
Int. Cl. G06F 3/06 (2006.01)
CPC G06F 3/064 (2013.01) [G06F 3/0619 (2013.01); G06F 3/067 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A data writing method, wherein the method comprises:
obtaining, by a network controller of a first client, to-be-written original data;
performing, by the network controller, erasure code encoding on the original data, to obtain a plurality of target data blocks; and
writing, by the network controller, a third quantity of target data blocks of the plurality of target data blocks into a storage node, wherein the plurality of target data blocks comprise a first quantity of original data blocks and a second quantity of check data blocks, two ends of a target data block comprise same version information, and the third quantity is greater than the first quantity.