| 摘要 |
PROBLEM TO BE SOLVED: To improve the performance of a memory control unit, especially, to provide a high performance for effectively utilizing high-speed data transfer, that a fiber channel has, and to enable the connection of a host computer having plural kinds of interfaces. SOLUTION: A loop 133 is a common loop transmission line having a fiber channel interface. HIFC 103, 104 and 105 are respectively connected with host computers 100, 101 and 102 of different interfaces and have a function for conversion with the fiber channel interface as needed. Each of control processors 114-117 is a processor shared by the HIFC 103-105. Each of control processors 114-117 refers to FCAL managing information, fetches a frame having a set address among frames flowing on the loop 133 and processes the input/output request within the set LUN range.
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