Re: (iSCSI) Question

[Sandeep Joshi <sandeepj@research.bell-labs.com>]

(iSCSI added to subject header..)

SCSI is a layered protocol.  In iSCSI, TCP is being used as 
the "SCSI transport" within the SCSI protocol hierarchy.

The slides below contain a good overview..
  (see pages 6 and 11)
http://WWW.ECE.CMU.EDU/~ips/documents/haagens.08.02.2000.pdf

You may also want to lookup the SAM-2 documents on 
http://www.t10.org/drafts.htm to get a feel for the SCSI 
architecture in general.

-Sandeep


> Hi,
> I am doing a research project at Arizona State University on SCSI and
> iSCSI. I was going through both the protocols. I have a crazy question.
> iSCSI = SCSI/(TCP/IP). But SCSI is a reliable protocol so is TCP. so can't
> we just try to send SCSI packets on IP or SCSI/UDP. Any & All comments are
> welcome.
>
> Thanks
> Shesha Bhushan S
> Research Assistant
> Arizona State University