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Method and device for data storage

A data storage and storage technology, applied in the storage field, can solve the problems of many mapping relationships and large memory consumption, and achieve the effect of improving query efficiency and reducing records

Active Publication Date: 2016-02-03
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a method and device for data storage, which are used to solve the problems in the prior art that there are many mapping relationships recorded in hierarchical storage systems and large memory consumption

Method used

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  • Method and device for data storage
  • Method and device for data storage

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Embodiment Construction

[0047] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0048] Additionally, the terms "system" and "network" are often used herein interchangeably. The term "and / or" in this article is just an association relationship describing associated objects, which means that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist simultaneously, and there exists alone ...

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Abstract

The present invention relates to the technical field of data storage, and discloses a data storage method and apparatus. During data storage, a virtual address of storage space for storing data is preset to be the same as a physical address of the storage space, a mapping relationship between the virtual address and the physical address of the storage space does not need to be recorded; a virtual address different from the physical address is allocated to the storage space only if the virtual address which is the same as the physical address is occupied, and in this case, the mapping relationship between the virtual address and the physical address needs to be recorded. Therefore, the number of the recorded mapping relationships is smaller; because the number of the recorded mapping relationships is reduced, the number of mapping relationships to be queried is reduced when the physical address is determined according to the virtual address, thereby reducing the recording of mapping relationships, and improving the query efficiency.

Description

technical field [0001] The invention relates to the technical field of storage, in particular to a data storage method and device. Background technique [0002] In today's IT (Information Technology, information technology) management, the challenge of data storage is often capacity requirements and performance requirements. Facing the increasing amount of data, it has become increasingly difficult to access, store and manage these data , management and maintenance costs are getting higher and higher. [0003] In order to solve the above problems, hierarchical storage technology emerged as the times require. Hierarchical storage is to store some data with high importance and high frequency of access in storage devices with high performance according to the importance of data, access frequency and other attributes, while the Other data with less importance and less frequent access are stored in storage devices with lower performance. Thus, reducing the space occupied by non...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F12/08G06F12/10
CPCG06F12/10
Inventor 蒲贵友
Owner HUAWEI TECH CO LTD
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