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

A management method and optical disc technology, applied in data recording, recording signal processing, instruments, etc., can solve the problems that optical discs cannot be read and written in parallel, achieve the effect of increasing data reading and writing speed, avoiding wasting bandwidth, and improving overall performance

Active Publication Date: 2014-08-13
WUHAN OPSTOR TECH LTD
View PDF3 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and device for parallel management of multi-optical-disc data
  • Method and device for parallel management of multi-optical-disc data
  • Method and device for parallel management of multi-optical-disc data

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The multi-disc data parallel management method provided by the embodiment of the present invention is applied to a multi-disc data parallel storage device, the device includes a controller, a plurality of optical disc drives are connected through a storage interface, and the controller is connected with a front end through a host interface The host, the controller is connected with a storage buffer through a data storage channel, and the storage buffer is built with a data allocation table, and also includes a CD writing buffer and a read buffer. The method in this embodiment includes at least one of a data reading method, a data writing method, and a data updating method. The above three methods are executed in parallel. Read and so on, each optical drive operates independently to perform read and write operations.

[0029] In this example, if Image 6 As shown, the controller has a data access task queue, which can accept, process and track concurrent data access tas...

Embodiment 2

[0063] Figure 4 The structure of a multi-disc data parallel storage device provided by the embodiment of the present invention is shown, and only the parts related to the embodiment of the present invention are shown for convenience of description.

[0064] A multi-disc data parallel storage device provided in this embodiment includes a controller 1, a plurality of optical disc drives 2 are connected through a storage interface, the controller is connected with a front-end host 3 through a host interface, and the controller is connected to a front-end host 3 through a data storage interface. The memory channel is connected with a memory buffer 4, such as Figure 5 As shown, the storage buffer has a built-in data allocation table 41 , and also includes a disc recording buffer 42 and a read buffer 43 . The storage interface is usually a high-speed standard storage interface such as SATA, SAS or USB, and the host interface includes a logical interface and a physical interface, ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

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...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G11B20/00G11B27/10G11B31/00
Inventor 曹强姚杰谢长生吴思
Owner WUHAN OPSTOR TECH LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap