Patent · US Active

Multiple logical input/output subsystem facility

US7587531B2 · kind B2 · utility

34Cited by

29References

21Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Frank W. Brice, Jr. · Kingston, US
Janet R. Easton · Woodstock, US
Charles W. Gainey, Jr. · Poughkeepsie, US
Steven G. Glassen · Wallkill, US
Beth A. Glendening · Poughkeepsie, US
Marten J. Halma · Poughquag, US
Jeffrey P. Kubala · Poughquag, US
Hans-Helge Lehmann · Holzgerlingen, DE
Tan Lu · Poughkeepsie, US
Allan S. Meritt · Poughkeepsie, US
Kenneth J. Oakes · Wappingers Falls, US
Charles E. Shapley · Salt Point, US
John S. Trotter · Pleasant Valley, US
Leslie W. Wyman · Poughkeepsie, US
Harry M. Yudenfriend · Poughkeepsie, US

Key dates

Filing date	Oct 29, 2007
Grant date	Sep 8, 2009
Priority date	—
Expiry date	Feb 26, 2028

Classification

Technology area (CPC G)Physics
CPC primaryG06F13/122
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

An input/output subsystem is configured as a plurality of input/output subsystem images, each of which appears to a program as an independent input/output subsystem. An input/output subsystem image is identified by an input/output subsystem image identifier, which is used by various programs to designate the particular input/output subsystem image for which an I/O operation is to be performed. An input/output subsystem image includes, for instance, one or more input/output paths. An input/output path of an input/output subsystem image is identified by an input/output path identifier, as well as a physical input/output path identifier.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.