Electrical computers and digital data processing systems: input/ – Input/output data processing – Direct memory accessing
Reexamination Certificate
2011-03-29
2011-03-29
Lee, Chun-Kuan (Department: 2181)
Electrical computers and digital data processing systems: input/
Input/output data processing
Direct memory accessing
C710S023000, C710S029000
Reexamination Certificate
active
07917668
ABSTRACT:
A disk controller has a channel adapter having a connection interface to a host computer or a disk drive; a memory adapter for temporarily storing data to be transferred between the host computer and disk drive; a processor adapter for controlling operations of the channel adapter and memory adapter; and a switch adapter for configuring an inner network by interconnecting the channel adapter, memory adapter and processor adapter, wherein the channel adapter, memory adapter, processor adapter and switch adapter each include a DMA controller for performing a communication protocol control of the inner network; and packet multiplex communication is performed among the DMA controllers provided in the adapters. The disk controller can realize a high transfer efficiency and a low cost while retaining a high reliability. A storage system includes an interface unit having an interface with a server or hard drives, a memory unit, a processor unit, and an interconnection.
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Fujimoto Kazuhisa
Hosoya Mutsumi
Inoue Yasuo
Nakamura Shuji
Shimada Kentaro
Hitachi , Ltd.
Huson Zachary K
Lee Chun-Kuan
Mattingly & Malur, P.C.
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