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    RE: UNH Plugfest



    
    	Ditto to what Bob said. This question arose because we saw
    implementations here at the plugfest ignoring the LUN field in
    the iSCSI PDUs in favour of the SCSI CDB LUN field. Clearly this
    is wrong but the spec doesn't say so, it is only implied because
    all SCSI references are to SAM-2.
    
    	- Rod
    
    -----Original Message-----
    From: owner-ips@ece.cmu.edu [mailto:owner-ips@ece.cmu.edu]On
    Behalf Of
    Robert D. Russell
    Sent: Friday, February 15, 2002 1:39 PM
    To: Julian Satran
    Cc: ips@ece.cmu.edu
    Subject: Re: UNH Plugfest
    
    
    
    Julian:
    
    > As for the question at hand - I think you did see already two
    opinions,
    > that I tend to agree with, that those poor souls that still
    rely on the
    > the CDB LUN should fix their drivers.
    >
    > We tried hard to avoid having to look inside the CDB all over
    iSCSI (we
    > don't even have to look inside to determine the length and that
    was
    > considered too at a point) and I don't see any good reason to
    break this
    > rule.
    
    I certainly agree that the spec does not need to be changed in
    any way
    to accommodate this.  The thought was only that somewhere,
    perhaps in
    an appendix or maybe a separate document, the issue of dealing
    with
    legacy SCSI systems could be deal with so that everyone would do
    it
    the same way and thus be interoperable.  But the spec as written
    is
    fine, and hopefully the operating systems still using the old
    SCSI
    specs will be upgraded in the near future (but there will always
    be
    users running older systems!)
    
    Bob Russell
    
    


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Last updated: Fri Feb 15 13:17:59 2002
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