AONT-LT: a Data Protection Scheme for Cloud and Cooperative Storage Systems
Marco Baldi, Nicola Maturo, Eugenio Montali, Franco Chiaraluce

TL;DR
AONT-LT is a novel data protection scheme for cloud and cooperative storage that replaces Reed-Solomon codes with rateless Luby transform codes, enhancing scalability and performance in dispersed storage systems.
Contribution
It introduces a new variant of AONT-RS using Luby transform codes, enabling better scalability and performance without fragmentation.
Findings
AONT-LT improves data dispersal performance.
It allows for scalable storage over many nodes.
The scheme maintains limited complexity.
Abstract
We propose a variant of the well-known AONT-RS scheme for dispersed storage systems. The novelty consists in replacing the Reed-Solomon code with rateless Luby transform codes. The resulting system, named AONT-LT, is able to improve the performance by dispersing the data over an arbitrarily large number of storage nodes while ensuring limited complexity. The proposed solution is particularly suitable in the case of cooperative storage systems. It is shown that while the AONT-RS scheme requires the adoption of fragmentation for achieving widespread distribution, thus penalizing the performance, the new AONT-LT scheme can exploit variable length codes which allow to achieve very good performance and scalability.
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Taxonomy
TopicsAdvanced Data Storage Technologies · Caching and Content Delivery · Cloud Data Security Solutions
