"redundant arrays of inexpensive disks"

Parity declustering is widely deployed in erasure coded storage systems so as to provide fast recovery and high data availability. However, to perform scaling on such RAIDs, it is necessary to preserve the parity declustered data layout so as to …

In parity-based RAID arrays, to update a data chunk, the corresponding parity chunk(s) must be updated accordingly so as to keep data consistency and availability. To achieve this, either read-modify-write (RMW) or read-construct-write (RCW) could be …