🚀 go-pugleaf

grasser@srmc.com (grasser) wrote:

>* they aren't going to have scsi3 so i don't think that we'll see 4

	Excuse me? Who told you that there's not going to be SCSI-3? I've got
two different textbooks, one from Addison-Wesley, that say otherwise.

	SCSI-3 is a tentative designation applied to a number of experimental
techniques, such as the fiber channel that you've mentioned, plus
high-speed serial over copper conductors.

	The following is quoted from 'The SCSI Bus and IDE Interface,' by
Friedhelm Schmidt, put out by Addison-Wesley, Page 84, section 9.3...

	"...The ANSI SCSI committee has already been working for quite some
time on SCSI-3. In the tradition of the previous specifications,
SCSI-3 will be compatible with SCSI-2. Among the more tangible
improvements, the documentation for SCSI-3 is better organized and
more modular..."

	"...In the physical and protocol area, SCSI-3 defines new interface
formats, such as fiber optics. The idea of communicating with SCSI
devices across a regular serial interface is also very attractive. An
additional bus phase will be added to the parallel interface SCSI that
has been discussed so far. Support for multiple hosts will be improved
and 16-bit Wide SCSI over a single cable has been included and already
adopted by the industry..."

	There's more, but the point is clear. SCSI-3 is, technically, already
with us in the form of Wide SCSI on a single cable (68 conductor). I
might add that I don't find mention of the term 'SCSI-4' in either
book.

	Watch out, IDE/EIDE. ;-)

==Bruce