DEVICE AND METHOD FOR DETECTING AND CORRECTING OBSTACLE TENDENCY IN DATA STORAGE ARRAY

摘要

PPROBLEM TO BE SOLVED: To detect an obstacle tendency of parameters in a data storage array to avoid an obstacle in a system. PSOLUTION: A plurality of data storage devices are constituted to form a memory array space enabling addressing by a plurality of data storage devices among them. A controller controls access to the memory array space and accumulates operation performance data from each data storage device in a history log. A statistics analysis engine of the controller analyzes the operation performance data to detect abnormal operation of the data storage devices. The controller starts specific correction processings of the data storage device by responding to demand and the analysis. The analysis by the statistics analysis engine becomes a substitute for this analysis in addition to or analysis by individual data storage devices. A data demand block demands an additional data sample of given parameters and demands additional parameter data to promote the analysis. PCOPYRIGHT: (C)2006,JPO&NCIPI