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Data storage system and data reading and writing method

A data storage and data technology, applied in the Internet field, can solve the problems of high probability of misjudgment of fingerprint information

Active Publication Date: 2019-07-05
ALIBABA GRP HLDG LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] In view of this, the present application provides a data storage method, a data storage system, a data reading and writing method, a client for data reading and writing and a system for data reading and writing, which solves the problem of The technical problem of high probability of misjudgment caused by decentralized management of fingerprint information

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  • Data storage system and data reading and writing method
  • Data storage system and data reading and writing method
  • Data storage system and data reading and writing method

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Embodiment Construction

[0052] The implementation of the present invention will be described in detail below with reference to the drawings and examples, so as to fully understand and implement the implementation process of how to use technical means to solve technical problems and achieve technical effects in the present invention.

[0053] figure 1 It is a data storage system (hereinafter referred to as "system") provided by the embodiment of the present application, including a central node 10 and a deduplication node 11, and the central node 10 is coupled to the deduplication node 11. In the system, the central node 10 is responsible for distributed management of multiple deduplication nodes 11 and data distribution and copy management in the system. The deduplication node 11 is responsible for managing and saving the data blocks, as well as the fingerprint information and storage information of the data blocks, and completes data replication and migration under the distributed management of the ...

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Abstract

The invention discloses a data storage system. The data storage system comprises a central node and duplicate removal nodes, wherein the central node is used for allocating each Bucket to a corresponding duplicate removal node according to a preset policy, creating a route table according to a corresponding relationship between the Bucket and the duplicate removal node, and synchronizing the route table to each duplicate removal node; and the duplicate removal node is used for storing fingerprint information corresponding to each allocated Bucket and a data block represented by the fingerprint information according to the route table. Therefore, global duplicate removal storage management of original data with the level of more than 100PB and fingerprint information with the level of more than 100TB is realized.

Description

technical field [0001] The invention belongs to the technical field of the Internet, and specifically relates to a data storage method, a data storage system, a data reading and writing method, a client for data reading and writing, and a data reading and writing system. Background technique [0002] In recent years, the data that Internet companies need to back up and archive has exploded. Tape has been the primary storage medium for backup and archive systems and primary storage for virtual machines due to cost considerations. However, the storage environment of the magnetic tape is demanding and the service life is short. Generally, it needs to be transferred to a new magnetic tape every 4-5 years. When the number of tapes has accumulated to tens of thousands or even hundreds of thousands, the transfer work will become a nightmare. [0003] With the development of disk technology, the capacity has reached 6T or even 8T, and its capacity price ratio is gradually approach...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F11/14G06F16/23G06F16/21
Inventor 蒋雄伟吴锐李勇
Owner ALIBABA GRP HLDG LTD
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