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This paper proposes a highly reliable RAID architecture called a Dual-Crosshatch Disk Array. It used the proposed interleaved 2d-parity scheme, a low overhead triple-erasure correcting parity organization. It is a hybrid approach of RAID-4 and RAID-5 with one dedicated parity group and another parity group using block interleaved data and parity. The results obtained from simulations indicated that this architecture possess extremely high reliability with low overheads.
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