Heuristic Approach for Faster Consistency Check in a Redundant Storage System

摘要

A method for reducing an amount of time required for performing consistency checking in a redundant storage system includes steps of: providing an information repository associated with each of a primary drive and at least one redundant drive; storing, in the information repository, information relating to input/output failures on the primary drive and redundant drive; determining a likelihood that one or more regions of the primary drive and/or redundant drive contains inconsistent data as a function of the information stored in the information repository; and performing consistency checking on the one or more regions of the primary drive and the redundant drive determined to have at least a prescribed likelihood of containing inconsistent data to thereby reduce the amount of time required for performing consistency checking.