Title :
An extension of RDP code with parallel decoding procedure
Author :
Feng, Jun ; Chen, Yu ; Summerville, Douglas ; Su, Zhou
Author_Institution :
State Univ. of New York - Binghamton, Binghamton, NY, USA
Abstract :
XOR based RAID 6 systems outperform other RAID systems. Among the XOR (exclusive OR) based RAID-6 schemes, RDP has better performance than others by a narrow margin. However, the RDP code scheme cannot take full advantage of parallel hardware implementation of XOR codes. In this paper, we propose an extension of the double-erasure-correcting RDP code called EDP, which consists of a parallel decoding scheme. Thus, EDP can improve the decoding velocity of RDP by about 40% without any change to the current RDP configuration for storage.
Keywords :
RAID; decoding; logic gates; parallel processing; XOR based RAID 6 systems; decoding velocity; double erasure correcting RDP code; exclusive OR; parallel decoding procedure; parallel hardware implementation; redundant array of independent disks; row diagonal parity; Arrays; Conferences; Decoding; Encoding; Iterative decoding; Multicore processing; Performance evaluation; Erasure Code; Fault Tolerate; Storage System; XOR;
Conference_Titel :
Consumer Communications and Networking Conference (CCNC), 2012 IEEE
Conference_Location :
Las Vegas, NV
Print_ISBN :
978-1-4577-2070-3
DOI :
10.1109/CCNC.2012.6181076
