Huawei Technologies Co., Limited

Kebo Fu

Ruliang Dong

Liang Chen

Yanxing Zeng

Xiang Wu

Xiaodong Luo

Jinyi Zhang

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.

Migrating data between different medium layers of a storage system

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.

Erasure code-based data processing method and apparatus

Growing community of inventors

Hangzhou, China

Kebo Fu