Method and device for parallel management of multi-optical-disc data

Abstract

The invention belongs to the technical field of data storage and provides a method and device for parallel management of multi-optical-disc data. The device comprises a controller. The controller is connected with a plurality of optical disc drivers through storage interfaces. The controller is connected with a front-end host through a host interface and connected with a memory buffer through a data storage channel. A data distribution table is placed in the memory buffer. The device further comprises an optical disc recording buffering zone and a reading buffer. The method at least comprises one of a data reading method, a data writing method and a data updating method, wherein the data reading method, the data writing method and the data updating method are executed in parallel. Each optical disc driver of the device can be operated independently, parallel reading and writing of the optical disc drivers are achieved through parallel management of data, the overall performance of a whole optical disc storage system is improved, the reading and writing speed of the data is increased, and the waste of bandwidths is avoided.

Description

technical field [0001] The invention belongs to the technical field of data storage, and in particular relates to a method and device for parallel management of multi-disc data. Background technique [0002] In the era of big data, the data growth rate does not increase, which in turn puts a huge pressure on storage capacity and performance. More and more important data need to be stored for a long time. Among them, optical disk storage is a cheap long-term data storage method. [0003] Most of the CDs used for archiving are write-once CDs, that is, they can only be written once, but can be read unlimited times. However, rewritable optical discs can be read and written. Although the number of write times is greater than one, there is still a limit on the number of times. Generally speaking, the read and write performance of rewritable optical discs is lower than that of write-once optical discs. For write-once discs, it is best to fill the entire disc at once. The reason...

AI Technical Summary

Problems solved by technology

[0007] In view of the above problems, the purpose of the present invention is to provide a multi-disc data parallel management method and device, aiming to solve the technical problem that the existing large number of discs cannot be read and written in parallel

Images