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Advanced Information Networking and Applications Workshops, International Conference on (2008)
Mar. 25, 2008 to Mar. 28, 2008
ISBN: 978-0-7695-3096-3
pp: 162-167
The distinct benefit of RAID-6 is that it provides higher reliability than the other RAID levels for toler-ating double disk failures. Whereas, when a disk fails the read/write operations on the failed disk will be re-directed to all the surviving disks, which will increase the burden of the surviving disks, the probability of the disk failure and the energy consumption along with the degraded performance issue. In this paper, we present a Self-Organized Strategy (SOS) to improve the performance of RAID-6 in the degraded mode. SOS organizes the data on the failed disks to the corresponding parity locations on first ac-cess. Then the later accesses to the failed disks will be redirected to the parity locations rather than all the surviving disks. Besides the performance improvement the SOSRAID-6 reduces the failure probability of the survived disks and is more energy efficient compared with the Traditional RAID-6. With the theoretical evaluation we find that the SOSRAID-6 is more pow-erful than the TRAID-6.

D. Feng, B. Mao, S. Wu, L. Zeng and J. Chen, "SOSRAID-6: A Self-Organized Strategy of RAID-6 in the Degraded Mode," 2008 22nd International Conference on Advanced Information Networking and Applications (AINA 2008)(AINAW), Okinawa, 2008, pp. 162-167.
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