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    RE: iSCSI: One Node or Two?



    Mark,
    
    I agree that your suggested rewordings clear things up (certainly works for
    me anyway).
    
    
    Thanks,
    
    David
    
    
    > -----Original Message-----
    > From: Mark Bakke [mailto:mbakke@cisco.com]
    > Sent: Monday, January 28, 2002 11:30 AM
    > To: David Dillard
    > Cc: IETF IPS Workgroup Reflector (E-mail)
    > Subject: Re: iSCSI: One Node or Two?
    > 
    > 
    > David-
    > 
    > The "or" is meant to be a non-exclusive or.  An iSCSI Node can
    > be both an initiator and a target, and have the same iSCSI name
    > for both.  See draft-ietf-ips-iscsi-name-disc-04:
    >            
    > >           2. iSCSI Names 
    > >               
    > >                 The main addressable, discoverable entity 
    > in iSCSI is an iSCSI 
    > >                 Node.  An iSCSI node can be either an 
    > initiator, a target, or 
    > >                 both. 
    > 
    > I agree that we should fix up the wording in the iSCSI draft to
    > clarify this.  How about changing:
    > 
    > Section 1. Definitions:
    > >         - iSCSI Name: The name of an iSCSI initiator or 
    > iSCSI target.  
    > 
    > To:
    > 
    >         - iSCSI Name: The name of an iSCSI node, which can be an iSCSI
    >           initiator, target, or both.
    > 
    > 2.5.1 iSCSI Architecture Model
    > >                 b) iSCSI Node - The iSCSI Node represents a 
    > single iSCSI 
    > >                 initiator or iSCSI target.  There are one 
    > or more iSCSI 
    > >                 Nodes within a Network Entity.
    > 
    > To:
    > 
    >                 b) iSCSI Node - The iSCSI Node represents a 
    > single iSCSI 
    >                 initiator and/or iSCSI target.  An iSCSI Node 
    > can be both
    >                 and initiator and a target.  There are one or 
    > more iSCSI 
    >                 Nodes within a Network Entity. 
    > 
    > 
    > I think that these two changes should clear this up.
    > 
    > --
    > Mark
    > 
    > 
    > David Dillard wrote:
    > > 
    > > As defined in the latest draft an iSCSI Node "... 
    > represents a single iSCSI
    > > initiator or iSCSI target."
    > > 
    > > By this definition an LU that acts as both an initiator and 
    > a target, such
    > > as a data mover for extended copy, is two iSCSI nodes.  
    > This LU will have
    > > two iSCSI names, one for the initiator side of the LU and 
    > one for the
    > > target.  Therefore, there will be two  iSNS "entries" for this LU.
    > > 
    > > My question is: Is this intended?
    > > 
    > > Regards,
    > > 
    > > David
    > 
    > -- 
    > Mark A. Bakke
    > Cisco Systems
    > mbakke@cisco.com
    > 763.398.1054
    > 
    


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Last updated: Mon Jan 28 13:17:57 2002
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