Technical data

320 Appendix D Interfaces
At the time of the Xfer Ready Disabled (not supported):
Initiator IU Direction Target IU
FCP_CMND ---------------------------------->
----------------------------------> FCP_DATA
<---------------------------------- FCP_XFER_READY
----------------------------------> FCP_DATA
<---------------------------------- FCP_XFER_READY
----------------------------------> FCP_DATA
<---------------------------------- FCP_RSP
The FCP_XFER_RDY is not sent before sending the first FCP_DATA.
Control Commands
With no data transfer:
Initiator IU Direction Target IU
----------------------------------> FCP_CMND
<---------------------------------- FCP_RSP
Queue Full, Busy, and Check Condition (before data transfer):
Initiator IU Direction Target IU
----------------------------------> FCP_CMND
<---------------------------------- FCP_RSP
Status such as the Queue Full and Busy are stored in the FCP_RSP.
Task management FCP_CMND (Target, Reset, Clear Task Set, and Abort Task Set):
Initiator IU Direction Target IU
----------------------------------> FCP_CMND
<---------------------------------- FCP_RSP