08095847 cites 157 patents.

A computer program product, apparatus, and method for handling exception condition feedback at a channel subsystem of an I/O processing system using data from a control unit are provided. The computer program product includes a tangible storage medium readable by a processing circuit and storing instructions for execution by the processing circuit for performing a method. The method includes sending a command message to the control unit, and receiving a response message in response to the command message. The response message includes exception condition feedback identifying a termination reason code in response to unsuccessful execution of at least one command in the command message. The method also includes interrupting a CPU in the I/O processing system, and reporting status associated with the exception condition feedback to the CPU in an interrupt response block.

Title
Exception condition handling at a channel subsystem in an I/O processing system
Application Number
12/30925
Publication Number
8095847 (B2)
Application Date
February 14, 2008
Publication Date
January 10, 2012
Inventor
Gustav E Sittmann
Webster Groves
MO, US
Louis C Ricci
Hyde Park
NY, US
Ugochukwu Charles Njoku
Yonkers
NY, US
Matthew J Kalos
Tucson
AZ, US
Catherine C Huang
Poughkeepsie
NY, US
Roger G Hathorn
Tucson
AZ, US
Charles W Gainey
Poughkeepsie
NY, US
John R Flanagan
Poughkeepsie
NY, US
Daniel F Casper
Poughkeepsie
NY, US
Scott M Carlson
Tucson
AZ, US
Agent
John Campbell
Cantor Colburn
Assignee
International Business Machines Corporation
NY, US
IPC
G06F 11/00
H03M 13/00
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