Generalized RDP Code Based Concurrent Repair Scheme in Cloud Storage Nodes

With the development and popularization of cloud storage technology, cloud storage has become a main method of data storage. Aiming at the problem of large delay and low availability incurred by multiple invalid nodes in cloud storage, a new type of concurrent nodes repair scheme called Distributed-...

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Bibliographic Details
Published in:Information (Basel) 2019-01, Vol.10 (1), p.20
Main Authors: Xie, Guojun, Shen, Jiquan, Yang, Huanhuan
Format: Article
Language:English
Subjects:
Availability
Bandwidths
Cloud computing
cloud storage
Data storage
Data transmission
Delay
generalized RDP code
network bandwidth
node repair
Nodes
Repair
repair delay
Reparations
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Description
Summary:With the development and popularization of cloud storage technology, cloud storage has become a main method of data storage. Aiming at the problem of large delay and low availability incurred by multiple invalid nodes in cloud storage, a new type of concurrent nodes repair scheme called Distributed-Cross Repair Solution (DCRS) is proposed. In this scheme, system repair operation is performed in replacement nodes, and all of the replacement nodes cooperatively and crossly repair data to ensure that the data blocks that are required for repairing are only transmitted once within the system. This will solve the system repair bottleneck in the traditional repair scheme and resolve the problem of large internal network throughput and other problems, which can effectively reduce the repair delay of the system. At the same time, the repair trigger mechanism is adopted in order to avoid the repair failure problem caused by the coming of additional damaged nodes during the system reparation, which increases the system’s reliability. The simulation results show that the DCRS has obvious effects in reducing system repair delay and increasing system availability.
ISSN:2078-2489
2078-2489
DOI:10.3390/info10010020