METHOD OF ESTABLISHING HIGH-LEVEL REDUNDANCY, FAILURE RESISTANCE AND PERFORMANCE IN RAID SYSTEM WITHOUT USING PARITY AND MIRRORING

摘要

PROBLEM TO BE SOLVED: To achieve high-level redundancy, failure resistance and performance in a RAID system without using parity and mirroring.SOLUTION: A method includes logically adjacent groups, loops and compression/decompression circuits of at least two drives. Each of the drives is provided with (i) a first area configured to store compressed data of the preceding drive, and (ii) a second area configured to store uncompressed data of the drive. The loop is connected to a subsequent drive within the logically adjacent group. The compression/decompression circuit is configured to compress and decompress data stored in each of the drives.