PROJECT TITLE :

Construction of Partial MDS and Sector-Disk Codes With Two Global Parity Symbols

ABSTRACT:

Partial MDS (PMDS) codes are erasure codes combining native (row) correction with international further correction of entries, while sector-disk (SD) codes are erasure codes that address the mixed failure mode of current redundant arrays of freelance disk (RAID) systems. It has been an open downside to construct general codes that have the PMDS and the SD properties, and previous work has relied on Monte-Carlo searches. During this paper, we gift a general construction that addresses the case of any variety of failed disks and in addition, two erased sectors. The development requires a modest field size. This result generalizes previous constructions extending RAID 5 and RAID half dozen.