Repeating data deleting system based on optical disc storage as well as data operating method and device

A technology of deduplication and optical disk storage, applied in data recording, information storage, recorded information storage, etc., can solve the problems of high access frequency and low storage efficiency, and achieve the effect of improving efficiency and reducing the number of disk readings.

Active Publication Date: 2015-05-13
WUHAN OPSTOR TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above problems, the object of the present invention is to provide a data deduplication system based on optical disk storage and a dat

Method used

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  • Repeating data deleting system based on optical disc storage as well as data operating method and device
  • Repeating data deleting system based on optical disc storage as well as data operating method and device
  • Repeating data deleting system based on optical disc storage as well as data operating method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0087] Figure 7The flow of the data backup method provided by the first 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.

[0088] like Figure 7 As shown, the data backup method provided in this embodiment includes:

[0089] Step S701. After receiving the file data backup request, divide the file data to be backed up into several data blocks, select the data blocks in order, and calculate the fingerprint of the current data block.

[0090] When data backup is required, the generation of a file data backup request is first triggered. And receive the file data to be backed up, install a predetermined format, divide the file data to be backed up into several data blocks, each data block is 16KB in size, and then process each data block in turn. Specifically, data blocks are selected one by one in sequence, and the fingerprint of the current data block is calculated. T...

Embodiment 2

[0102] Figure 8 The flow of the data backup method provided by the second 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.

[0103] like Figure 8 As shown, the data backup method provided in this embodiment includes:

[0104] Step S801, after receiving the file data backup request, divide the file data to be backed up into several data blocks of the same size;

[0105] Step S802, selecting data blocks in sequence, and calculating the corresponding data block fingerprints for the current data block through hash algorithm;

[0106] Step S803, for each data block, first inquire whether there is a fingerprint identical to the fingerprint of the current data block in the fingerprint buffer;

[0107] Step S804, if the same fingerprint does not exist in the fingerprint buffer area, continue to inquire whether there is a fingerprint identical to the fingerprint of the curr...

Embodiment 3

[0115] Figure 9 The flow of the data recovery method provided by the third 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.

[0116] like Figure 9 As shown, the data recovery method provided in this embodiment includes:

[0117] Step S901, when a file data recovery request is received, obtain the file directory information corresponding to the file data, and pre-read the optical disc data storing the file data into the optical disc buffer area in units of the entire disc;

[0118] Step S902, first accessing the data block buffer area, and then accessing the optical disc buffer area to obtain data of each data block of the file;

[0119] Step S903, when all the data blocks are obtained, integrate the data blocks to obtain the original file.

[0120] When data recovery is required, first trigger the generation of a file data recovery request, and the file data recove...

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Abstract

The invention is suitable for the technical field of optical disc storage and provides a repeating data deleting system based on optical disc storage as well as a data operating method and a data operating device. The system comprises high-speed storage equipment, an internal memory, a processor and an optical disc cabinet. The data operating method comprises a data backup method and a data reducing method, wherein in the data backup method, caching a data block into a buffer region, storing the data block into the optical disc in batch while the data block buffer amount reaches the capacity of an optical disc; in the data restoration method, through a file directory stored in the buffer region, caching the optical disc into the buffer region in total, obtaining and integrating the file data block. By sufficiently utilizing the optical disc storage characteristics, optical disc reading-writing times can be reduced to a very great extent, so that the repeating data deleting system based on optical disc storage is realized.

Description

technical field [0001] The invention belongs to the technical field of optical disc data management, and in particular relates to an optical disc storage-based deduplication system, a data operation method and a device. Background technique [0002] With the rapid growth of data in the era of big data, the demand for information storage of today's enterprises is also growing rapidly, and the improvement of storage devices can no longer meet the needs of enterprise data storage. In the process of data backup, enterprises will repeatedly store a large amount of the same data in the storage device, resulting in a serious waste of storage resources. Data de-duplication technology is a popular technology in current research. In the process of data storage, the same data is only stored once, which greatly reduces the waste of storage resources. [0003] Some current data deduplication systems, such as P-Dedupe and Extreme Binning, all use disks as data storage devices, and use da...

Claims

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Application Information

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IPC IPC(8): G11B20/00
CPCG06F3/0641G06F3/0677
Inventor 曹强
Owner WUHAN OPSTOR TECH LTD
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