High-speed I/O controller having separate control and data...

Details High-speed I/O controller having separate control and data... High-speed I/O controller having separate control and data...

2008-09-02

2008-09-02

Dollinger, Tonia L. M. (Department: 2181)

Electrical computers and digital data processing systems: input/

Input/output data processing

Input/output access regulation

C710S022000, C710S052000, C710S107000, C710S300000, C710S305000, C710S310000, C710S316000

Reexamination Certificate

active

10927479

ABSTRACT:
An I/O controller having separate command and data paths, thereby eliminating the bandwidth used by the commands and thus increasing bandwidth available to the data buses. Additionally, the I/O controller uses multiple dedicated data paths, for example, dedicated distributed buses, and provides increased speed due to improved hardware integration. The I/O controller employs distributed processing methods that decouple the external microprocessor from much of the decision-making, thereby providing improved operating efficiency and thus more useable bandwidth at any given clock frequency. Accordingly, the I/O controller is capable of maximizing I/O operations (IOPS) on all I/O ports by functioning at the rate of I/O connections to hosts and storage elements without becoming a bottleneck.

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