APPARATUS, SYSTEM, AND METHOD TO INCREASE DATA INTEGRITY IN A REDUNDANT STORAGE SYSTEM

摘要

An apparatus, system, and method are disclosed to increase data integrity in a redundant storage system. The receive module receives a read request to read data from an ECC chunk spanning N storage elements of an array of N+P storage elements. The N storage elements each store a portion of the ECC chunk and the P storage elements store parity data. The data read module reads data from each of X number of storage elements of the N+P storage elements where (N+P)>X≧N. The ECC correction module corrects the read data of the ECC chunk using Error Correcting Code (“ECC”) in response to the ECC chunk comprising a number of bit errors below a correctable bit error threshold. The substitution module may correct the read data with substitute data from a substitute storage element.