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A data access method, device and system

A data access and data technology, applied in the field of network storage, can solve the problems of reducing service quality and increasing file system response time, and achieve the effect of improving service quality and fast data access request

Active Publication Date: 2015-09-30
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] To sum up, it can be seen that in the prior art data access methods, locating the data to be accessed needs to access the data to be accessed by seeking the hard disk through the magnetic head. Due to the limitation of the mechanical structure of the disk, this method leads to the response of the file system. Increased time, reduced quality of service

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  • A data access method, device and system
  • A data access method, device and system
  • A data access method, device and system

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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] figure 1 For a schematic flowchart of the data access method disclosed in the embodiment of the present invention, see figure 1 As shown, in the data access method, the proxy server obtains all directory data and metadata in the file system of the storage server in advance, and stores the directory data and the metadata as super metadata; the method may include :

[0037] Step 101: Receive a data access request initiated by an application server.

[...

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PUM

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Abstract

The invention discloses a data access method, a device and a system. An agent server obtains all the catalogue data and element data in a file system in advance and uses the catalogue data and the metadata as the super-metadata, then receives a data access started by an application server; when the data access request is the access request of the super-metadata, the super-metadata is read or updated; when the data access request is not the access request of the super-metadata, the data access request is sent to the file system of a storage server. According to the data access method, the device and the system, the super-metadata can be accessed without a head seek disk, the cached super-metadata is read or updated directly; therefore, the data access request of the application server can be quickly responded, and the service quality of the file system of the storage server is promoted.

Description

technical field [0001] The present invention relates to the technical field of network storage, and more specifically, to a data access method, device and system. Background technique [0002] The file system is a system that organizes and allocates file storage space, is responsible for file storage, and protects and retrieves stored files. Data in a file system generally includes two parts: file data and metadata. Among them, file data includes directory data and actual data; and metadata is data used to organize and manage file data. [0003] With the rapid development of the information age, the amount of data information in various fields has also expanded rapidly. In general, file systems are used to manage and store these massive data. Since these stored data need to be consulted at any time or updated in real time, it is required that the data in the file system can be accessed conveniently and quickly. [0004] In the prior art, when accessing the data of the fi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/30
Inventor 张震伟
Owner HUAWEI TECH CO LTD