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Data updating method and device

A data recovery device and data technology, applied in the field of communication, can solve problems affecting access, etc., to achieve the effects of reducing impact, reducing operational risks, and solving data recovery problems

Inactive Publication Date: 2009-08-26
HUAWEI DIGITAL TECH (CHENGDU) CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, the overall copying of hot files will affect the current customer's access to this file

Method used

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Embodiment Construction

[0047] 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.

[0048] In the embodiment of the present invention, the composition of the parallel file system may include MDS, OSN, Agent (storage node agent), OTD (OSN-Agent Task Dispatcher, task distributor), OLL (OSN-object List Library, list of objects on the OSN Repository), and Monitor (the monitoring node of the system). Each of the above components can be a physical component or a logical component. It is just for the convenience of describing that the component that...

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Abstract

An embodiment of the invention discloses a data updating method and a device thereof, wherein the data updating method comprises the following steps: obtaining the information of associated data object of a first storing node to be updated; obtaining the data of associated data object from the storing node comprising the associated data object according to the information of associated data object; adopting the data of associated data object for obtaining the data of data object of the first storing node according to the storing mode of data file, and updating the data object of the first storing node to a target storing node. The technical scheme provided by the embodiment of the invention effectively settles the data recovery method in the present parallel file system, reduces the running risk of parallel file system, and reduces the effect to the present service in the data migration and backup process.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a data update method and device. Background technique [0002] Parallel file system (pNFS, parallel Net File System) is a cluster file system in which read and write operations can be performed in parallel on multiple nodes, including client agent (CA, Client Agent), metadata server (MDS, meta-data server) and object Storage node (OSN, Object Storage Node), such as figure 1 shown. Among them, the OSN stores data in the form of objects, and the files in the parallel file system are distributed to each OSN in the form of stripes. CA provides a user development interface for applications to access the parallel file system, and can be deployed to multiple application servers. MDS is responsible for providing the metadata of the entire system to customers, managing the namespace of the entire system, maintaining the directory structure and user permissions of the ent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30G06F11/14
Inventor 徐涛
Owner HUAWEI DIGITAL TECH (CHENGDU) CO LTD
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