TIIS (한국인터넷정보학회)
Current Result Document :
| 한글제목(Korean Title) |
IR-RBT Codes: A New Scheme of Regenerating Codes for Tolerating Node and Intra-node Failures in Distributed Storage Systems |
| 영문제목(English Title) |
IR-RBT Codes: A New Scheme of Regenerating Codes for Tolerating Node and Intra-node Failures in Distributed Storage Systems |
| 저자(Author) |
Jianchao Bian
Shoushan Luo
Wei Li
Yaxing Zha
Yixian Yang
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| 원문수록처(Citation) |
VOL 13 NO. 10 PP. 5058 ~ 5077 (2019. 10) |
한글내용
(Korean Abstract) |
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영문내용
(English Abstract) |
Traditional regenerating codes are designed to tolerate node failures with optimal bandwidth overhead. However, there are many types of partial failures inside the node, such as latent sector failures. Recently, proposed regenerating codes can also repair intra-node failures with node-level redundancy but incur significant bandwidth and I/O overhead. In this paper, we construct a new scheme of regenerating codes, called IR-RBT codes, which employs intra-node redundancy to tolerate intra-node failures and serve as the help data for other nodes during the repair operation. We propose 2 algorithms for assigning the intra-node redundancy and RBT-Helpers according to the failure probability of each node, which can flexibly adjust the helping relationship between nodes to address changes in the actual situation. We demonstrate that the IR-RBT codes improve the bandwidth and I/O efficiency during intra-node failure repair over traditional regenerating codes but sacrifice the storage efficiency.
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| 키워드(Keyword) |
distributed storage
data security
erasure codes
regenerating codes
intra-node failure
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| 파일첨부 |
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