Parity assignment technique for parity declustering in a parity array of a storage system

摘要: A parity assignment technique enables declustering in a large, balanced (“super-stripe”) array of storage system. The may be constructed by combining plurality unbalanced stripe arrays, each having blocks on set devices, such as disks, that are disjoint from the disks storing data blocks. distributes to groups among combined super-stripe all contain same amount or information. Moreover, ensures surviving loaded uniformly during reconstruction phase after single double disk failure.