Re: Scheduled Transfer Protocol on Linux

From: Alan Cox (alan@lxorguk.ukuu.org.uk)
Date: Sun Feb 13 2000 - 19:27:13 EST


> I wasn't so much interested in that level as the one where SCSI is itself a
> networking protocol. Current SCSI drives are effectively IDE drives with
> on-board computers that do SCSI "networking"; at this level, smart drives

Its actually kind of the other way around. A modern IDE drive is a cut down
SCSI drive and firmware with some legacy mode glue added. ATAPI is most of
SCSI with some of the sillier stuff removed. The latest generation of the
spec adds the important scsi stuff like tagged queues.

> with STP networking differ only in that they're potentially a little more
> general, and that you need to use slightly newer (but common) hardware and
> code to implement it.

SCSI as a networking protocol is possible but needs a carrier layer. Thats
basically how SCSI over FC/AL works. And people are doing SCSI over IP already

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