This article is from the storage FAQ part2, by Rodney D. Van Meter with numerous contributions by others.
SCSI-2 has commands that support third-party copying of data; one
initiator tells device A to copy to device B. I don't know of any
devices actually using this.
Separation of control & data paths is a popular topic these days; can
somebody comment on whether or not SCSI-3 supports this? I don't think
so. (SHMO)
 
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