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1. (WO2018102967) CONTROL METHOD, STORAGE DEVICE AND SYSTEM FOR DATA READ/WRITE COMMAND IN NVME OVER FABRIC ARCHITECTURE

Pub. No.:    WO/2018/102967    International Application No.:    PCT/CN2016/108599
Publication Date: Fri Jun 15 01:59:59 CEST 2018 International Filing Date: Tue Dec 06 00:59:59 CET 2016
IPC: G06F 3/06
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
Inventors: QIU, Xin
邱鑫
GISSIN, Victor
吉辛维克多
ZHANG, Jinbin
张锦彬
Title: CONTROL METHOD, STORAGE DEVICE AND SYSTEM FOR DATA READ/WRITE COMMAND IN NVME OVER FABRIC ARCHITECTURE
Abstract:
An control method, device and system for a data read/write command in an NVMe over Fabric architecture, being capable of solving the problem in the prior art of the execution failure of a data read/write command due to a large amount of data to be transmitted for the data read/write command and insufficient storage space of a cache unit of a storage device. According to the method, a data processing unit allocates a first storage space from an available storage space of the cache unit according to the length of data that needs to be transmitted carried in the data read/write command, wherein the length of data which can be stored in the first storage space is a first length, and the first storage space is less than a storage space of the cache unit, and the first length is less than the length of the data to be transmitted (500); and the data processing unit sequentially acquires data with the first length, caches same in the first storage space, and sequentially migrate the data cached in the first storage space to a storage space corresponding to a destination address of the data to be transmitted of the data read/write command (502).