Electrical computers and digital data processing systems: input/ – Input/output data processing – Data transfer specifying
Reexamination Certificate
2007-11-30
2010-02-23
Kindred, Alford W (Department: 2181)
Electrical computers and digital data processing systems: input/
Input/output data processing
Data transfer specifying
C710S029000, C710S033000, C709S211000, C709S212000, C709S225000, C709S231000, C709S237000
Reexamination Certificate
active
07668980
ABSTRACT:
Provided are a method, system, and article of manufacture, wherein a primary storage control unit receives an information unit from a remote host over a fiber channel connection, wherein persistent information unit pacing is implemented over the fiber channel connection. Information is maintained on how many large writes have been received at the primary storage control unit over at least one logical path established over the fiber channel connection between the primary storage control unit and the remote host, wherein a large write is an input/output (I/O) operation for which a number of data information units that are processed exceeds a default value of an information unit pacing credit. The primary storage control unit adjusts an information unit pacing parameter included in a response sent from the primary storage control unit to the remote host, wherein the adjusting is based at least on the information maintained on how many large writes have been received at the primary storage control unit over the at least one logical path.
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Hathorn Roger Gregory
Holley Bret Wayne
Kalos Matthew Joseph
Dutta Rabindranath
International Business Machines - Corporation
Kindred Alford W
Konrad Raynes & Victor LLP
Lee Chun-Kuan
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