Early termination of an I/O operation in an I/O processing system
US8176222B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2008 |
| Grant date | May 8, 2012 |
| Priority date | — |
| Expiry date | Apr 12, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/122
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A computer program product, apparatus, and method for handling early termination of an I/O operation at a channel subsystem in an I/O processing system 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 receiving a request to terminate an I/O operation, and transmitting an abort command to a control unit in communication with the channel subsystem in response to receiving the request to terminate the I/O operation. The method also includes transmitting a purge path command to purge a path associated with the I/O operation, where the purge path command includes an error code identifying the request to terminate the I/O operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.