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A method and device for data storage

A data storage and data block technology, applied in the storage field

Active Publication Date: 2018-12-07
HUAWEI DIGITAL TECH SUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The embodiment of the present invention provides a method and device for data storage, which solves the problem that the existing RAID technology provides maximum fault tolerance of two hard disks

Method used

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  • A method and device for data storage
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Embodiment Construction

[0035] 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. 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.

[0036] In the existing RAID technology, the fault tolerance capability of at most two hard disks can only be provided, that is, when the data of more than two hard disks is lost, the lost data cannot be recovered through the existing RAID technology.

[0037] In order to solve the above problems, combined with figure 1 , the embodiment of the present invention provides a data storage method, the method is applied to a storage array, the storage array contains ...

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Abstract

The embodiment of the present invention provides a method and device for data storage, which solves the problem that the existing RAID technology provides the fault tolerance capacity of two hard disks at most. The method is applied to a storage array, and the storage array includes n storage devices, and the method includes: splitting the data to be stored into M data blocks, wherein the m is a preset positive integer smaller than n-1; At least M-n+1 data blocks are stored in each of the storage devices, wherein any m+1 storage devices in the n storage devices contain at least one identical data block, and two different m+ At least one of the same data blocks contained in one storage device is different. The method is suitable for the field of storage technology.

Description

technical field [0001] The present invention relates to the technical field of storage, in particular to a data storage method and device. Background technique [0002] As the requirements for data security are getting higher and higher, and the speed of ordinary integrated drive electronics (Integrated Drive Electronics, IDE) hard disk is low, the performance is not stable enough, and it cannot be used to store key data, and efficient, stable and reliable small computers System interface (Small Computer System Interface, SCSI) hard disks are expensive, and many small and medium-sized enterprises cannot afford them. [0003] Therefore, Redundant Array of Inexpensive / Independent Disks (Redundant Array of Inexpensive / Independent Disks, RAID) was born. The basic principle of RAID is to combine multiple independent hard disks in different ways to form a disk group, thus providing a relatively Higher storage performance of a single hard drive. [0004] Different combinations ar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/06G06F11/14
Inventor 李方翔
Owner HUAWEI DIGITAL TECH SUZHOU