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    Re: iSCSI: scope of keys



    Julian,
    
    I actually suggest something along the following lines at the beginning of
    Appendix D, than labelling each key.  This would also allow us to not
    specifically
    call out each "IO" key as we currently do.
    
      All keys with LO or  FFPO, or qualified as Declarative use have session-wide
      applicability.  All keys with IO or ALL usage have connection-wide
    applicability.
    
    With that said, some general comments on keys -
    
    - InitiatorAlias, TargetAlias and TargetAddress keys should be qualified with
       the "Declarative" label.
    
    - I recommend changing InitialR2T, BidiInitialR2T and ImmediateData as IO,
       fom the current ALL (with the one-time change restrictions).   This makes
    it
       simple, and besides I can not quite picture a scenario the current
    allowance
       could be useful in.
    
    - InitiatorAlias and TargetAlias are keys that merely report an alias set in a
      different management domain (hence declarative), with the currently
    specified
      usage as ALL.  I assume it is so because the alias could be changed while
    the
      session is in progress outside of iSCSI.  iSCSI does not however require
    this
      key to be sent everytime the alias is changed during a session.  We should
    either
      require this to avoid stale values, or much better, drop aliases altogether
    from
      iSCSI (can be asynchronously set in a different domain, and not useful for
    iSCSI
      protocol interactions)....
    
    - Editorial: MaxRecvPDULength - s/b "Use: All" with "Use: ALL".
    --
    Mallikarjun
    
    Mallikarjun Chadalapaka
    Networked Storage Architecture
    Network Storage Solutions Organization
    Hewlett-Packard MS 5668
    Roseville CA 95747
    
    ----- Original Message -----
    From: "Julian Satran" <Julian_Satran@il.ibm.com>
    To: <ips@ece.cmu.edu>
    Sent: Friday, December 14, 2001 12:50 PM
    Subject: Re: iSCSI: scope of keys
    
    
    Eddy,
    
    I think the text says it - but if people love headers better I can add it
    (some voices needed).
    
    Julo
    
    
    
    
    "Eddy Quicksall" <Eddy_Quicksall@ivivity.com>
    Sent by: owner-ips@ece.cmu.edu
    14-12-01 22:12
    
    
            To:     "ips@ece. cmu. edu \(E-mail\)" <ips@ece.cmu.edu>
            cc:
            Subject:        iSCSI: scope of keys
    
    
    
    
    Would it make sense to add a ?scope? to each key definition? The IO and LO
    ?use:? labels almost do that but not in all cases. For example:
    
     SW = Session wide
     CO = Connection only
    
     Use: IO
     Who can send: Initiator
     Scope: SW
    
     Key=<value>
    
    Eddy
    
    
    
    


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Last updated: Tue Dec 18 11:17:48 2001
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