Fibre channel input/output data routing system and method

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United States of America Patent

PATENT NO 8364853
APP PUB NO 20120311198A1
SERIAL NO

13150539

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A computer program product is provided for performing a method including: obtaining information relating to an I/O operation at a channel subsystem in a host computer system; generating at least one address control word (ACW) in the local channel memory specifying one or more host memory locations for transfer of data between the host and a control unit and including at least one ACW error checking field; generating an address control structure specifying a location in the local channel memory of a corresponding ACW and including at least one address control structure error checking field; receiving a data transfer request from the network interface that includes the addressing information; comparing the at least one ACW error checking field to the at least one address control structure error checking field; and, responsive to the fields matching, routing the data transfer request to the host memory location specified in the corresponding ACW.

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Patent Owner(s)

Patent OwnerAddress
INTERNATIONAL BUSINESS MACHINES CORPORATIONNEW ORCHARD ROAD ARMONK NY 10504

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bubb, Clinton E Pleasant Valley, US 28 246
Casper, Daniel F Poughkeepsie, US 105 6804
Flanagan, John R Poughkeepsie, US 115 5826

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