| 摘要 |
PROBLEM TO BE SOLVED: To provide a peripheral control processor capable of eliminating necessity for normally re-transferring whole data in the case of software retrial and or shortening a processing time as compared with that in a conventional manner. SOLUTION: The peripheral control processor 8 is provided with a low-order interface control part 6 controlling an interface with a peripheral device 7 which is controlled by a peripheral control processor 8, a track buffer 4 for temporarily storing input/output data with respect to the peripheral device 7, a fault information control part 5 for analyzing fault information which is announced from the peripheral device 7, a data transfer control part 3 for controlling input/output data transfer and a high-order interface control part 1 for controlling the interface with respect to a host device 1. Transfer is started by using data of the track buffer 4 in the case of a software retrying operation, fault information is analyzed and the retrying operation from a fault occurrence logical block address to the peripheral device 7 is executed.
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