Method, system, and storage medium for resolving contention...

Electrical computers and digital processing systems: multicomput – Computer network managing – Computer network access regulating

Reexamination Certificate

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Details

C370S462000

Reexamination Certificate

active

07409448

ABSTRACT:
An exemplary embodiment of the invention relates to a method, system, and storage medium for resolving contention issues by a channel in a fiber optic switch environment that occur during channel program execution. The method comprises a channel receiving a status packet indicating a device is no longer busy. The method also includes specifying whether the channel intends to re-initiate a channel program that previously resulted in the device busy status. If the channel does not intend to re-initiate the channel program, a first combination of bits in a re-initiate field of a status-acceptance packet are set which indicate that the channel will take no further action. If the channel intends to re-initiate the channel program, a second combination of bits in the re-initiate field of the status-acceptance packet are set, indicating that the channel will re-initiate the channel program. The method further includes transmitting the status-acceptance packet to a control unit. The invention also includes a system and a storage medium.

REFERENCES:
patent: 5465355 (1995-11-01), Cook et al.
patent: 5867648 (1999-02-01), Foth et al.
patent: 6240446 (2001-05-01), Casper et al.
patent: 6338083 (2002-01-01), Casper et al.
patent: 6671284 (2003-12-01), Yonge et al.
patent: 2002/0120740 (2002-08-01), Ho et al.

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