发明名称 |
Cancel instruction and command for determining the state of an I/O operation |
摘要 |
The state of an input/output (I/O) operation is determined in an I/O processing system. A command is received from an I/O operating system at a channel subsystem for initiating the I/O operation, a time period is for completion of the I/O operation, and the command for initiating the I/O operation is sent from the channel subsystem to the control unit. Responsive to the time period nearing elapsing without the I/O operation completing, a cancel instruction is received from the I/O operating system at the channel subsystem. Responsive to a determination by the I/O operating system to interrogate the control unit, an instruction to interrogate the control unit is received with the cancel instruction from the I/O operating system. |
申请公布号 |
US8166206(B2) |
申请公布日期 |
2012.04.24 |
申请号 |
US20080030993 |
申请日期 |
2008.02.14 |
申请人 |
YUDENFRIEND HARRY M.;CASPER DANIEL F.;FLANAGAN JOHN R.;KALOS MATTHEW J.;RIEDY DALE F.;RICCI LOUIS W.;HATHORN ROGER G.;SITTMANN GUSTAV E.;NJOKU UGOCHUKWU C.;HUANG CATHERINE C.;CARLSON SCOTT M.;INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
YUDENFRIEND HARRY M.;CASPER DANIEL F.;FLANAGAN JOHN R.;KALOS MATTHEW J.;RIEDY DALE F.;RICCI LOUIS W.;HATHORN ROGER G.;SITTMANN GUSTAV E.;NJOKU UGOCHUKWU C.;HUANG CATHERINE C.;CARLSON SCOTT M. |
分类号 |
G06F3/00 |
主分类号 |
G06F3/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|