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Data deduplication using a solid state drive controller

A technology of data deduplication and solid-state drive, applied in the storage field, can solve the problems of occupying CPU, memory and bus resources, inefficiency, and cost, and achieve the effect of reducing data volume, reducing workload, and reducing impact

Active Publication Date: 2018-05-11
ALIBABA GRP HLDG LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] In conclusion, traditional data deduplication methods are inefficient, expensive, and occupy a large amount of CPU, memory, and bus resources

Method used

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  • Data deduplication using a solid state drive controller
  • Data deduplication using a solid state drive controller
  • Data deduplication using a solid state drive controller

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Embodiment Construction

[0031] Reference will now be made in detail to various embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings. While described in conjunction with these embodiments, it will be understood that they are not intended to limit the disclosure to these embodiments. On the contrary, the disclosure is intended to cover alternatives, modifications and equivalents, which may be included within the spirit and scope of the disclosure as defined by the appended claims. Furthermore, in the following detailed description of the present disclosure, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure. However, it will be understood that the present disclosure may be practiced without these specific details. In other instances, well-known methods, procedures, components, and circuits have not been described in detail so as not to unnecessarily obscure aspects of the present disclosure.

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Abstract

A data deduplication method is executed by a controller for a solid state drive (SSD). The controller receives a signature for a block of data. The controller performs a comparison of the signature and information in a signature library and determines whether or not the signature matches the information. The controller sends a signal that indicates a result of the comparison. If the signature andthe information match then the signal has a first value indicating that the block of data is already stored on the SSD; if the signature and the information do not match then the signal has a second value that is different than the first value.

Description

technical field [0001] The invention relates to the field of storage technology, in particular to a data deduplication method for solid-state drives (SSDs). The invention also relates to a solid-state drive SSD. Background technique [0002] Contemporary businesses have accumulated huge amounts of data (eg, PB, petabyte) in databases, which are stored in various media such as tapes, hard drives, solid state drives (SSD), and the like. Legal requirements, government rules and regulations, business rules and best practices require that databases be archived and backed up frequently. As a result, thousands of petabytes of data have been stored, and the amount of stored data continues to explode. [0003] Data deduplication methods and systems are used to reduce data volumes to increase efficiency and reduce costs. Typically, a deduplication system will find identical parts in different data files and store these identical parts only once. A deduplication system also maintai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06
CPCG06F3/0679G06F3/0608G06F3/0641G06F3/0611G06F13/42G06F2213/0032G06F3/0673
Inventor 李舒李勇牛功彪
Owner ALIBABA GRP HLDG LTD