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RAID-6Plus: A Comprised Methodology for Extending RAID-6 Codes
Joint Authors
Deng, Ming-Zhu
Xiao, Nong
Yu, Song-Ping
Liu, Fang
Zhu, Lingyu
Chen, Zhi-Guang
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-02-23
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Telecommunications Engineering
Abstract EN
Existing RAID-6 code extensions assume that failures are independent and instantaneous, overlooking the underlying mechanism of multifailure occurrences.
Also, the effect of reconstruction window is ignored.
Additionally, these coding extensions have not been adapted to occurrence patterns of failure in real-world applications.
As a result, the third parity drive is set to handle the triple-failure scenario; however, the lower level failure situations have been left unattended.
Therefore, a new methodology of extending RAID-6 codes named RAID-6Plus with better compromise has been studied in this paper.
RAID-6Plus (Deng et al., 2015) employs short combinations which can greatly reuse overlapped elements during reconstruction to remake the third parity drive.
A sample extension code called RDP+ is given based on RDP.
Moreover, we extended the study to present another extension example called X-code+ which has better update penalty and load balance.
The analysis shows that RAID-6Plus is a balanced tradeoff of reliability, performance, and practicality.
For instance, RDP+ could achieve speedups as high as 33.4% in comparison to the RTP with conventional rebuild, 11.9% in comparison to RTP with the optimal rebuild, 47.7% in comparison to STAR with conventional rebuild, and 26.2% for a single failure rebuild.
American Psychological Association (APA)
Deng, Ming-Zhu& Xiao, Nong& Yu, Song-Ping& Liu, Fang& Zhu, Lingyu& Chen, Zhi-Guang. 2017. RAID-6Plus: A Comprised Methodology for Extending RAID-6 Codes. Mobile Information Systems،Vol. 2017, no. 2017, pp.1-12.
https://search.emarefa.net/detail/BIM-1188920
Modern Language Association (MLA)
Deng, Ming-Zhu…[et al.]. RAID-6Plus: A Comprised Methodology for Extending RAID-6 Codes. Mobile Information Systems No. 2017 (2017), pp.1-12.
https://search.emarefa.net/detail/BIM-1188920
American Medical Association (AMA)
Deng, Ming-Zhu& Xiao, Nong& Yu, Song-Ping& Liu, Fang& Zhu, Lingyu& Chen, Zhi-Guang. RAID-6Plus: A Comprised Methodology for Extending RAID-6 Codes. Mobile Information Systems. 2017. Vol. 2017, no. 2017, pp.1-12.
https://search.emarefa.net/detail/BIM-1188920
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1188920