Title :
A coding technique for recovery against double disk failures in disk arrays
Author_Institution :
IBM Almaden Res. Center, San Jose, CA, USA
Abstract :
The author presents a method for encoding an array of disks in such a way that the information is protected against two disk failures. The encoding requires two redundant disks and this performance is optimal. The encoding and decoding circuits require only exclusive-OR operations, giving them an advantage over other methods involving finite field operations, like Reed-Solomon codes
Keywords :
decoding; encoding; magnetic disc storage; coding; decoding circuits; disk arrays; double disk failure recovery; encoding circuit; exclusive-OR operations; Circuit faults; Decoding; Encoding; Equations; Galois fields; Protection; Redundancy; Reed-Solomon codes; Topology;
Conference_Titel :
Communications, 1992. ICC '92, Conference record, SUPERCOMM/ICC '92, Discovering a New World of Communications., IEEE International Conference on
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-0599-X
DOI :
10.1109/ICC.1992.268104
