Intelligent disk array controller background surface analysis

Details Intelligent disk array controller background surface analysis Intelligent disk array controller background surface analysis

G - Physics

06

F

G06F 11/00 (2006.01) G06F 3/06 (2006.01) G06F 11/267 (2006.01) G06F 13/00 (2006.01) G11B 19/06 (2006.01)

Patent

CA 2047406

INTELLIGENT DISK ARRAY CONTROLLER BACKGROUND SURFACE ANALYSIS ABSTRACT A method for performing background disk sector Analysis for drives, including drives dedicated to redundancy and/or fault recovery techniques, in an intelligent, microprocessor based disk array. The method directs the microprocessor to wait a specified time and test for disk activity. In the absence of disk activity, the disk controller is directed to generate a read request for a disk memory location within the array. A return code following the array is checked to determine if the read failed, indicating a disk drive media failure. The disk controller is then notified if a failure occurs. The processor again checks for disk array activity and in the absence of activity issues a read request for successive locations within the array, thereby reading all disk memory locations within the array.

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