Data reading and writing method, device, electronic device and readable storage medium

Abstract

The present invention provides a data reading and writing method, device, electronic equipment and readable storage medium. The method includes: obtaining a data reading and writing request, and adding the data reading and writing request to the data writing request queue or the data writing request queue according to the request type In the read request queue; if the data write request queue is not empty, the first type of recording head is used to write the data to be written into the predetermined disc cartridge, and the data to be written is the data written in the data write request queue. The data carried by the input request; if the data read request queue is not empty, the second type of recording head is used to read the data from the disc box to be read according to the data read request in the data read request queue, and the read data to be read The optical disc cartridge is determined by the optical disc cartridge identifier carried in the data read request. It solves the problem of poor data reading and writing efficiency, and can prioritize data writing requests and data reading requests through different recording heads, reducing frequent loading of recording heads and improving data reading and writing efficiency.

Description

technical field

[0001] The embodiments of the present invention relate to the field of computer technology, and in particular, to a data reading and writing method, device, electronic equipment, and readable storage medium. Background technique

[0002] In a data storage system of a computer, storage media that may be used include: magnetic disks, optical disks, magnetic tapes, and the like. Among them, for optical disc storage, each cabinet is equipped with multiple optical disc magazines and multiple recording heads, so that the optical disc magazines can be loaded into the recording heads through the mechanical arm, so as to read and write data through the recording heads.

[0003] In the prior art, there are three schemes for reading and writing data through the recording head. Among them, the first scheme follows the rule of reading priority, and the recording head performs the data reading operation first, that is: when there is a data reading task, the recording head...

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