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A data recovery method and object storage device

An object storage device and object storage technology, applied in the computer field, can solve the problems of low efficiency and long time consuming of lost data

Active Publication Date: 2017-09-29
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Embodiments of the present invention provide a data recovery method and an object storage device, which are used to solve the problems of low efficiency and long time consumption in recovering lost data on an OSD in the prior art

Method used

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  • A data recovery method and object storage device
  • A data recovery method and object storage device
  • A data recovery method and object storage device

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Embodiment Construction

[0041]In order to better understand the present invention, the object storage system involved in the data recovery method provided by the embodiment of the present invention is firstly introduced. The components of the object storage system include: an object storage device OSD, a metadata server (Metadata Server, MDS), and a client of the object storage system.

[0042] Among them, OSD has its own processor, memory, hard disk and network interface. Therefore, OSD can not only store object data, but also use its own CPU and memory to optimize data distribution, support data prefetching, and manage objects stored on it. metadata. The client of the object storage system runs a file system, which is responsible for analyzing the user's operation request on the file, and completes the operation requested by the user through communication with the OSD and MDS. MDS provides metadata for clients, effectively supporting clients to access objects on OSD.

[0043] In order to ensure t...

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Abstract

The invention discloses a data recovery method and object storage equipment, which aim at solving the problems of lower efficiency and overlong consumption time when lost data of OSD (on screen display) are recovered in the prior art. The data recovery method is applied to an object storage system, and the object storage system comprises a plurality of OSDs. The method is executed by the first OSD, and the first OSD comprises a hard disc. The method comprises the following steps of determining the lost data of the first OSD which is to be written into the hard disc of the first OSD; sending a request message to the other OSDs, except for the first OSD; receiving the response information to the request message sent by the other OSDs, wherein the response message carries the information written into the other OSDs within a set time length, and the data information comprises other data which belong to the same data object as the to-be-written data of the hard disc of the first OSD; according to the received information of the data of the other OSDs, recover the to-be-restored data of the first OSD in the hard disc of the first OSD.

Description

technical field [0001] The invention relates to the field of computer technology, in particular to a data restoration method and an object storage device. Background technique [0002] Object-Based Storage System (Object-Based Storage System) combines the advantages of Network Storage Technologies (NAS) and Storage Area Network (SAN) technology, and has the advantages of high-speed direct access of SAN and data sharing of NAS. , providing a storage system with high reliability, cross-platform and high security. [0003] The basic constituent unit of an object storage system is an object storage device (Object-based Storage Device, OSD). The OSD is responsible for storing objects (Objects), and the objects store file data and file-related attribute information. In order to ensure the reliability of the stored object, an object is stored using an erasure code (Erasure Code). Specifically, an object is divided into N equal-length data blocks, and M verification data blocks ar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/06
CPCG06F3/0656G06F11/1469
Inventor 王廷海
Owner HUAWEI TECH CO LTD
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