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Data storage method and system

A data storage and data technology, applied in the field of data storage methods and systems, can solve the problems of inconvenient use of SMR disks, and achieve the effects of avoiding fragmentation, large storage capacity, and improving reading efficiency

Active Publication Date: 2018-07-06
CHINA TELECOM CLOUD TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the use of SMR disk is not very convenient, and it cannot be closely combined with the database to realize online data access. How to better use SMR disk to realize real-time data storage has become a concern of people.

Method used

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Embodiment Construction

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0034] Aiming at the problem of inconvenient use in the prior art, a Key-Value storage method supporting SMR disks is proposed, which can better utilize SMR disks to realize real-time data storage.

[0035] In the present invention, the storage system is designed for the characteristics of the S...

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Abstract

The invention discloses a data storage method and system, and relates to the field of data storage. According to the method, data and index records are written according to the storage characteristicsof an SMR disk and a front-to-back order of storage space in Zone, and are respectively stored according to the characteristics of a Key-Value database, combination of the Key-Value database and theSMR disk is realized, the advantages of high storage density and high storage quantity of the SMR disk can be exerted, the characteristic of convenient reading of the Key-Value database can also be effectively utilized, and the data input by a user are stored in real time. In addition, Zone of which idle storage space is greater than data length is selected to store the data of each time of writing, fragmentation of the data is avoided, and reading efficiency of the data is improved.

Description

technical field [0001] The invention relates to the field of data storage, in particular to a data storage method and system. Background technique [0002] The rapid development of the mobile Internet has made human beings' enthusiasm for creating and sharing data unprecedentedly high, and a data revolution is about to erupt. According to the forecast of IDC (Internet Data Center, Internet Data Center), the demand for data storage is increasing at a rate of 50% per year, and will reach an astonishing 40 Zetta Byte (Zetta Byte, ZB) in 2020, equivalent to all 57 times the number of grains of sand. In order to solve the problem of data storage, Shingled Magnetic Recording (SMR) technology was proposed. SMR technology readjusts the data storage method by overlapping tracks, thereby increasing the track density and storage density per unit area. SMR divides the disk into several zones. Random writing can be performed between zones, but sequential writing must be performed withi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06
CPCG06F3/0611G06F3/0655G06F3/0676
Inventor 江峰赵文韬魏玮李桐胡鹏李宏希
Owner CHINA TELECOM CLOUD TECH CO LTD
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