Data writing method, device and system, electronic equipment and storage medium

Abstract

The invention discloses a data writing method, device and system, electronic equipment and a computer readable storage medium. The method comprises the steps of obtaining to-be-written data; according to byte addressing, writing the to-be-written data into an annular buffer area of the persistent memory equipment, wherein the working mode of the persistent memory device is an application direct access mode; storing the to-be-written data in the annular buffer area into a data memory. According to the invention, addressing is carried out according to bytes, the to-be-written data is written into the annular buffer area of the persistent memory device, and the writing speed and bandwidth which are provided by the persistent memory device and are several times that of a traditional data memory are utilized, so that the writing speed of the data is improved, and the possibility of data loss during a fault is reduced; and the to-be-written data is transferred and stored by using the annular buffer area in the persistent memory equipment, so that the to-be-written data can be continuously written, and the technical use cost is reduced while the data persistence speed is increased.

Description

Technical field [0001] The present invention relates to the field of data storage, and in particular, to a data write method, apparatus, system, electronic device, and computer readable storage medium. Background technique [0002] Persistent Memory (PMEM) is a new generation of storage media, except for byte addressing and high-speed reading and writing performance, these DRAMs such as power-off non-volatile, high storage density, and low static power consumption. The memory is not available, bringing new opportunities to build a more efficient storage computing system. [0003] However, compared to traditional mechanical hard drives and solid state drives, the price of persistent memory devices is high, and the cost is high when it is used as a storage medium. In the storage scenario of big data, the user still uses mechanical hard drives and NAS (Network ATTACHED Storage, Network Memory) as primary storage, so that the write speed of the data is subject to the consumption and ...

AI Technical Summary

Problems solved by technology

[0003] However, compared to traditional non-volatile devices such as mechanical hard drives and solid-state drives, persistent memory devices are expensive and expensive to use as storage media at scale

In the big data storage scenario, users still widely use mechanical hard disks and NAS (Network Attached Storage, network storage) as the main storage, so the data writing speed is limited by the consumption of small data blocks and low bandwidth; among them, The implementation of cross-host data partitioning uses slow network copying, which further reduces the data writing speed and may cause more data loss in the event of computer room failures (such as power outages and network fluctuations, etc.)

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