05414851 is referenced by 150 patents and cites 10 patents.

Provides a method for increasing the connectivity of I/O resources to a multiplicity of operating systems (OSs) running in different resource partitions of a computer electronic complex (CEC) to obtain sharing of the I/O resources among the OSs of the CEC, including channels, subchannels (devices), and control units (CUs). The invention provides image identifiers (IIDs) for assigning resources to the different OSs. Each shared I/O resource has a sharing set of control blocks (CBs) in which a respective CB is assigned to (and located by) a respective IID of one of the OSs. Each of the CBs in a sharing set provides a different image of the same I/O resource. The different CB images are independently set to different states by I/O operations for the different OSs, so that the OSs can independently share the same I/O resource.

Title
Method and means for sharing I/O resources by a plurality of operating systems
Application Number
7/898867
Publication Number
5414851
Application Date
June 15, 1992
Publication Date
May 9, 1995
Inventor
Leslie W Wyman
Poughkeepsie
NY, US
David E Stucki
Poughkeepsie
NY, US
Martin W Sachs
Westport
CT, US
John C Rathjen Jr
Rhinebeck
NY, US
Kenneth J Oakes
Wappingers Falls
NY, US
Allan S Meritt
Poughkeepsie
NY, US
Paul A Malinowski
Poughkeepsie
NY, US
Suzanne M John
Poughkeepsie
NY, US
Roger E Hough
Highland
NY, US
Marten J Halma
Poughquag
NY, US
Robert E Galbraith
Poughkeepsie
NY, US
Kenneth J Fredericks
Poughkeepsie
NY, US
Joseph C Elliott
Hopewell Junction
NY, US
Frank W Brice Jr
Hurley
NY, US
Agent
Bernard M Goldman
Assignee
International Business Machines Corporation
NY, US
IPC
G06F 9/46
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