| 摘要 |
The present invention enables to obtain a data transfer at a high rate, at a reasonable cost, and with a high reliability. The disk array system according to the present invention includes: a plurality of arrayed disk apparatuses 8a to 8f for writing/reading a data; a plurality of array controllers 2a, 2b for controlling writing/reading a data to/from the disk apparatuses 8a to 8f according to an instruction from a host computer; and a switching mechanism 1 connected to each of the disk apparatuses 8a to 8f, for establishing an exclusive connection between the array controllers 2a, 2b and the disk apparatuses 8a to 8f. When one of the array controller 2a, 2b has acquired from the other array controllers 2a, 2b a control authority over all or one of the disk apparatuses 8a to 8f according to an instruction from a host computer, the array controller having the control authority controls the switching mechanism 1 to establish a connection between the array controller and the disk apparatuses. Means for this connection is also provided in the system.
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