Fibre Channel Protocol for SCSI, Fourth Version (FCP-4). Revision 00a. October 30, 2006

This standard describes the frame format and protocol definitions required to transfer commands and data
between a SCSI (Small Computer System Interface) initiator and target using the Fibre Channel family of
standards. The second version added optional retransmission, task ordering, and confirmation capabilities. This
third version incorporates bi-directional commands, removes information that is now contained in other
standards, and describes additional error recovery capabilities for the Fibre Channel Protocol.