{PDF} SCSI Generic Packetized Protocol (GPP r09) T10 Technical Committee

SCSI-3 Generic Packetized Protocol (SCSI-3 GPP) is a SCSI protocol that permits an inter-operable common mapping of the Small Computer System Interface (SCSI) functions to several physical interfaces that do and do not have a native SCSI-3 mapping. In support of such a heterogeneous system environment (e.g., SCSI-3 parallel interface, Fibre Channel, and Internet), some implementors may choose to use GPP as single common transport protocol.