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A kind of fault data recovery method

A recovery method and technology for faulty data, which are applied in electrical digital data processing, redundancy in computing, data error detection, instrumentation, etc. The effect of reducing the risk of data loss

Active Publication Date: 2019-07-23
GEOVIS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art, when the redundant data is distributed on different machines, a random method is adopted, and different machines are not selected, resulting in that the machines with the same data distribution may be fault-prone machines, thus causing difficulties in data maintenance and Increased risk of data loss

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  • A kind of fault data recovery method
  • A kind of fault data recovery method
  • A kind of fault data recovery method

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Embodiment Construction

[0020] Hereinafter, the present invention will be described in detail with reference to the drawings and specific embodiments. The illustrative embodiments and descriptions are only used to explain the present invention, but are not intended to limit the present invention.

[0021] See attached figure 1 , Is the system to which the present invention is applied. In one embodiment, it is a distributed system, and the system includes multiple computing nodes.

[0022] See attached figure 2 , A method for recovering data from failure, the method includes the following steps:

[0023] (1) Calculate the storage risk value R of each node according to the storage capacity, operating load and failure frequency of the m nodes i in the system according to the following formula (a) i :

[0024] R i =S i ×P i +1 / F i ×Q i +G i ×T i (a);

[0025] Where S i Indicates the storage capacity of node i, P i Indicates the weight corresponding to the storage capacity, F i Represents the highest system opera...

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Abstract

The invention relates to a fault data recovery method. The fault data recovery method comprises the step of selecting a node grouping group. The node grouping group comprises a node with higher storage risk and a node with lower storage risk, so that the average storage risk in each group is relatively balanced, and the situation that a number of nodes of redundant data distribution are nodes withfrequent faults is avoided, and redundant data is distributed to the storage risk-balanced group to facilitate data maintenance and reduce the risk of data loss.

Description

[0001] 【Technical Field】 [0002] The invention belongs to the field of data storage, and particularly relates to a method for restoring faulty data. [0003] 【Background technique】 [0004] Under normal circumstances, the maximum throughput provided by a machine can only reach 200MBps. If the usual machine mirroring is used, that is, the data on several machines is completely consistent, it will take more than 20 hours to repair the 12TB data. Under normal service pressure, the repair time will reach dozens of hours. [0005] In the prior art, a distributed storage method is proposed in which data is divided into multiple libraries and several redundant copies are replicated. Different redundancy of the same library is distributed and stored in different locations on different machines, which improves the repair speed. However, in the prior art, when redundant data is distributed on different machines, a random method is adopted, and different machines are not selected. As a result, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F11/14
CPCG06F11/1471
Inventor 刘斌吴方才楚涌泉
Owner GEOVIS CO LTD