Multi-backup nearby storage and reading method and system of cloud host mirror image file

A technology of image files and cloud hosts, which is used in the generation of response errors, redundant data error detection in operations, special data processing applications, etc., and can solve problems such as performance degradation.

Inactive Publication Date: 2013-12-18
COMP NETWORK INFORMATION CENT CHINESE ACADEMY OF SCI +1
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Problems solved by technology

This leads to a decrease in performance when reading data, because no matter which client

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  • Multi-backup nearby storage and reading method and system of cloud host mirror image file
  • Multi-backup nearby storage and reading method and system of cloud host mirror image file
  • Multi-backup nearby storage and reading method and system of cloud host mirror image file

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Embodiment Construction

[0022] The present invention will be described in further detail below through specific embodiments and accompanying drawings.

[0023] The storage and reading system of the cloud host image file in this embodiment requires three kinds of servers: a control server (Controller server), a metadata server (Metadata server) and a computing node server (Compute server), such as figure 1 shown. Among them, the control server refers to the server in the cloud management platform that manages the scheduling, migration and network configuration of the cloud host; the computing node server refers to the server that creates and runs the cloud host in the cloud management platform, and the computing node server At the same time, it has the data storage function of shared storage, and has the client function of shared storage, which can read data; the metadata server is mainly used to record the computing node server information stored corresponding to each data block of the cloud host ima...

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Abstract

The invention belongs to the field of mirror image storage of a distributed file system-based cloud management platform in cloud computing, and relates to a multi-backup nearby storage and reading method and a multi-backup nearby storage and reading system of a cloud host mirror image file. The method comprises the following steps: segmenting the cloud host mirror image file into data blocks, backing up and storing in a plurality of computing node servers, wherein a complete cloud host mirror image file is stored at one local computing node server, and the data blocks of the other backups are averagely distributed to other computing node servers to store; recording computing node server information stored corresponding to each data block of the cloud host mirror image file by using a metadata server; preferably reading data from one local computing node server by a client; reading the entire piece of data from the other computing node servers concurrently if the local computing node server fails. The method and the system are suitable for storing the cloud host mirror image files in the cloud management platform, the performance of the system can be improved, and higher storage and reading speed can be achieved.

Description

technical field [0001] The invention belongs to the cloud host image storage technology based on a distributed file system in the field of computer technology, relates to a cloud host image data storage strategy and a reading strategy based on a distributed file system, and is mainly used when shared storage is required, and for Under the cloud management platform environment with relatively high data I / O performance requirements. Background technique [0002] In the cloud platform management system, the traditional way is to use the local disk to store the image file of the cloud host. The advantage of using this method is that the access speed is fast, the virtual machine directly interacts with the data in the local disk, and the I / O performance is good. But this method has a relatively big disadvantage, that is, if the local disk is broken, the cloud host used by the user will stop, even if there are other cloud host image backups or the machine has done raid, then the c...

Claims

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Application Information

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IPC IPC(8): G06F17/30G06F11/14
Inventor 冯凯韦远科赵红新周园春黎建辉甘宁邵靖
Owner COMP NETWORK INFORMATION CENT CHINESE ACADEMY OF SCI
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