Peripheral device access using synchronous input/output
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United States of America Patent
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Jul 18, 2017
Issued Date -
N/A
app pub date -
Oct 1, 2015
filing date -
Oct 1, 2015
priority date (Note) -
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Abstract
Aspects include accessing data located on peripheral devices using synchronous input/output (I/O). A unit of work is received by an operating system (OS) executing on a processor. The unit of work includes an I/O request to access data located on a persistent storage control unit (SCU) that is external to the processor. It is determined that the I/O request should be serviced by a synchronous I/O. A synchronous I/O is initiated to the persistent SCU to service the I/O request based on determining that the I/O request should be serviced by a synchronous I/O. The unit of work is kept active while waiting for the synchronous I/O to complete. A notification that the I/O has completed is received and the unit of work is completed in response to receiving the notification.
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