A RAID4-based multi-cloud storage system expansion method
A technology of cloud storage system and expansion method, which is applied in the direction of transmission system, electrical components, etc., can solve the problems of consuming bandwidth resources and prolonging the expansion time, and achieve the effect of increasing expansion speed, improving reliability, improving security and reliability
Active Publication Date: 2019-04-12
HUAZHONG UNIV OF SCI & TECH
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In this way, the amount of migration data required for expansion is twice that of migration data blocks, which seriously consumes bandwidth resources and prolongs the expansion time.
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[0039] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.
[0040] The expansion of the multi-cloud storage system based on RAID4 of the present invention is fully realized on the cloud.
[0041] Such as figure 1 As shown, the multi-cloud storage and expansion schematic diagram based on RAID4 of the present invention are described as follows:
[0042] Cloud users upload file data locally to the object storage service of each cloud that has registered a...
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The invention discloses a multi-cloud storage system expansion method based on an RAID4 (Redundant Array of Independent Disks). The method comprises the following steps that a cloud user locally uploads file data to an object storage service of each cloud which is registered and purchases the service, and data blocks are stored between the clouds in an RAID4 way; and when a user needs to transfer some of the data in the existing cloud to a new cloud for some reasons and maintains the data between the clouds to be still stored in the RAID4 way, the user selects and transfers some of data to the new cloud from the cloud storing the original data, sends some of the transferred data to a check cloud and applies computing resources of the check cloud to compute a new check block to guarantee a new multi-cloud storage system to be still stored in the RAID4 way. The method is based on storage in the RAID4 way, so that an error 1 can be tolerant; in addition, the bandwidth resources can be exchanged through consuming the computing resources of the check cloud, so that the transfer data volume due to expansion can be reduced.
Description
technical field [0001] The invention belongs to the field of cloud storage, and more specifically relates to a RAID4-based multi-cloud storage system expansion method. Background technique [0002] Cloud storage is a new network storage technology developed on the basis of cloud computing. However, since single cloud storage can cause problems such as single point of failure and service provider monopoly, data is divided and stored on multiple clouds. Multi-cloud deploys various types of cloud storage services together to better meet the application needs of enterprises and individuals. [0003] The data in multi-cloud storage is distributed in multiple cloud storage platforms, but integrated in a multi-cloud storage architecture, so it has a high system complexity. Because multi-cloud storage can effectively solve the problems of single point of failure and monopoly of service providers, it can bring lower costs and higher value. [0004] The data is stored in RAID4 on t...
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IPC IPC(8): H04L29/08
CPCH04L67/1097
Inventor 胡燏翀常拴霞王阿孟文可吴锋肖仁智张晓阳李宗玮
Owner HUAZHONG UNIV OF SCI & TECH