| 摘要 |
In a storage system comprising a disk controller, a disk unit having queue memory for storing the commands, and network between the disk controller and the disk unit, to decrease a overhead in the write processing in issuing a write command to a disk unit, a disk controller designates whether the data be transferred after the command or not depending upon the upper-limit length of the block that can be transferred simultaneously with the write command that is determined between the disk controller and the disk unit at the time of initialization, the disk controller sends the write data to the disk unit together with the write command-when the amount of write data in the write processing is small, and, the disk unit queues the write command and stores the write data onto the cache memory on the disk unit.
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