A method of calculating parity for an m-storage element failure in a networked array of storage elements. A first set of n XOR relationships is derived, each first set relationship containing n data symbols from n storage elements and one parity symbol from a first set of parity symbols. A second set...http://www.google.com/patents/US7555701?utm_source=gb-gplus-sharePatent US7555701 - Method and system for recovering from multiple drive failures
