Electrical computers and digital processing systems: multicomput – Computer network managing – Computer network access regulating
Reexamination Certificate
2003-11-25
2008-08-05
Cardone, Jason (Department: 2141)
Electrical computers and digital processing systems: multicomput
Computer network managing
Computer network access regulating
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.
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Dugan Robert J.
Frazier Giles R.
Cantor & Colburn LLP
Cardone Jason
International Business Machines - Corporation
Kinnaman, Jr. William A.
Patel Chirag R
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