蔡晗 教授
信息科学与技术学院
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Yumeng Yang, Han Cai, Xiaohu Tang: A Transformation of Repairing Reed-Solomon Codes From Rack-Aware Storage Model to Homogeneous Storage Model
发表刊物:IEEE Transactions on Communications
摘要:In this paper, we address the node repair problem of Reed-Solomon (RS) coded distributed storage systems. Specifically, to overcome the challenges of multiple-node failures of RS codes under the rack-aware storage model, we employ good polynomials to guide the placement of the conventional RS codes into racks and then propose a novel repair framework for the resultant rack-aware RS codes, which can transform its repair to that under the homogeneous storage model. As applications of our repair framework, firstly we present the repair scheme of multiple-node failures for some existing constructions, which only have non-trivial solutions for repairing a single-node failure before. Secondly, we deduce several new constructions of rack-aware RS codes supporting the repair of multiple-node failures within a single rack and across multiple racks, respectively.
论文类型:SCI
卷号:72
期号:11
页面范围:6649 - 6659
是否译文:否
发表时间:2024-11-15
收录刊物:SCI
