Image Number 13 for United States Patent #7111087.
Each disk enclosure 117 contains an ENC bypass 113A for a disk connector 111A, and PBC 101A and 103A, which perform selective switching to transfer data via either the disk connector 111A or the ENC bypass 113A. When the occurrence of an anomaly in the disk connector 111A is detected, the CTL 5A connected to the disk connector 111A asks the CTL 5B to bypass the disk connector 111A, whereupon the CTL 5B switches the data communication path from the disk connector 111A to the ENC bypass 113A by controlling the PBC 101A and 103A.
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