Storage system with DMA controller which controls multiplex...

Details Storage system with DMA controller which controls multiplex... Storage system with DMA controller which controls multiplex...

2007-01-12

2008-12-23

Patel, Niketa I (Department: 2181)

Electrical computers and digital data processing systems: input/

Input/output data processing

Peripheral adapting

C710S022000, C710S051000, C710S308000, C710S316000, C709S212000, C709S213000

Reexamination Certificate

active

07469307

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.

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