Managing sets of input/output communications subadapters of an input/output subsystem
US7277968B2 · kind B2 · utility
35Cited by
35References
37Claims
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Key dates
| Filing date | Jan 23, 2004 |
| Grant date | Oct 2, 2007 |
| Priority date | — |
| Expiry date | May 30, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/124
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Input/output (I/O) communications subadapters, such as subchannels, of an I/O subsystem are dedicated to components, such as I/O devices, of the I/O subsystem. The subadapters provide information about the associated components, in response to the execution of I/O instructions. To enhance I/O connectivity, a plurality of sets of I/O subadapters is provided to an operating system image. This allows programs of the operating system image to access a same component via different sets of I/O communications subadapters. Further, it enables an operating system image to use more than 64 k subchannels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.