| 摘要 |
PURPOSE: To provide the disk array controller and the disk array device at a low cost in which data are transferred at a high speed. CONSTITUTION: This controller is provided with a disk array control section having an MPU 8, a user data transfer control section consisting of host interfaces 3, 4 with respect to a host computer 17, a memory 5 storing tentatively data, a redundant data generating circuit 7 generating redundant data, plural channels of disk device interfaces 16a-16e, 12a-12e, a host interface, a memory 5 and a data transfer control means (DMAC) 6 controlling the data transfer among the host interface, the memory 5, the redundant data generating circuit 7 and the disk interface, and at least three-bus configuration is adopted for buses for a control (MPU) bus 15, a host data bus 13 and a drive data bus 14. |
