| 摘要 |
There is a technique for a disk array subsystem which can reduce the number of LSIs required per one channel and mount more channels on a package, in a package of a channel control unit. In the disk array subsystem, a channel control unit receiving a data input/output request from an external unit has: a plurality of link control LSIs establishing communication with the external unit; a plurality of processors (MP) processing the data input/output command from the external unit; and a channel control LSI having a bridge control unit for changing a plurality of buses respectively connected to the link control LSIs and processors, connecting the bus connected to the link control LSI and the bus connected to the processor by the bridge control unit, and transferring the data between the link control LSI and the cache memory in accordance with the processor.
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