Patent ID: 8001298

Claim:
An article of manufacture comprising at least one computer usable medium having computer readable program code logic to provide extended measurement word data from a control unit to a channel subsystem of an input/output (I/O) processing system, the computer readable program code logic for performing a method comprising: receiving a command message from the channel subsystem at the control unit, wherein the command message is a transport command information unit message including a transport command control block (TCCB), the TCCB including at least one device control word (DCW) and having a location identified by a transport control word (TCW); initiating at the control unit a timing calculation sequence of a plurality of time values in response to receiving the command message at the control unit; storing the plurality of time values as extended measurement word data at the control unit in a response message; and outputting the response message including the extended measurement word data from the control unit to the channel subsystem.