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A method and system for deduplication

A data deduplication and data technology, applied in the direction of electronic digital data processing, digital data information retrieval, special data processing applications, etc.

Active Publication Date: 2015-08-19
IBM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after the existing block-level data deduplication technology removes duplicated stored data blocks, the deduplication rate of data is fixed. A high deduplication rate can further save storage and transmission costs, which is the constant pursuit of various manufacturers. Objective, therefore, it is necessary to further study the data deduplication method and system with higher deduplication rate

Method used

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  • A method and system for deduplication
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  • A method and system for deduplication

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Embodiment Construction

[0022] Preferred embodiments of the invention will be described in more detail with reference to the accompanying drawings, in which preferred embodiments of the invention are shown. However, the present invention may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0023] figure 2 A block diagram of an exemplary computing system 100 suitable for implementing embodiments of the invention is shown. As shown, computer system 100 may include: CPU (Central Processing Unit) 101, RAM (Random Access Memory) 102, ROM (Read Only Memory) 103, system bus 104, hard disk controller 105, keyboard controller 106, serial Line interface controller 107 , parallel interface controller 108 , display controller 109 , hard disk 110 , keyboard 111 , serial peripheral 112...

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Abstract

The present disclosure discloses a method and system for data deduplication. The method comprises: acquiring meta data and multiple data chunks corresponding to at least one original data object, which are generated by using a data deduplication method; combining the acquired multiple data chunks into a new data object; performing deduplication on the new data object to generate new meta data and new data chunks corresponding to the new data object; and storing the meta data corresponding to the at least one original data object, the new meta data corresponding to the new data object, and the new data chunks. The method and system can further improve deduplication ratio, lower data storage amount, and save costs.

Description

technical field [0001] The present invention generally relates to data backup, and more specifically, relates to a method and system for deduplicating data. Background technique [0002] Data backup is a process of retaining data in a certain way so that it can be reused when the system is damaged or in other specific situations. Data backup is an important part of the storage field, and its status and role in the storage system cannot be ignored. And for an IT system, backup work is also an essential part. Because it can not only prevent the destruction of unexpected events, but also enable historical data to be archived in the best way, that is, it provides the possibility for historical data query, statistics and analysis, as well as important information archiving. [0003] De-duplication (De-duplication) technology removes redundant data by deleting duplicate data in a data set. For duplicate data, only one copy is retained, thereby eliminating redundant data. It is a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/30
CPCG06F17/30159G06F16/1752
Inventor 李玉猛王丽娜熊殷翔李彦欣闻晶
Owner IBM CORP