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    Re: iSCSI: Connection establishment criteria



    Nandakumar,
    
    Once a session is established, when to create additional connections is 
    entirely implementation dependent.  One caveat is that if the last or only 
    connection remaining goes down you have to establish a new one and 
    reassign tasks if you have some within the bounds of an explicit or 
    session default Time2Retain.
    
    Julo
    
    
    
    
    "Nandakumar Ramamurthy" <nramamur@npd.hcltech.com>
    Sent by: owner-ips@ece.cmu.edu
    30-10-01 15:12
    Please respond to "Nandakumar Ramamurthy"
    
     
            To:     <ips@ece.cmu.edu>
            cc: 
            Subject:        iSCSI: Connection establishment criteria
    
     
    
    
    Hi All,
    
    
    Consider the following :
    An initiator and a target have established a session ( Leading login has
    been successful ).
    Thus, we have one connection between the initiator and target (the leading
    connection).
    Also assume MaxConnections has been agreed upon by both ends as X ( 2 or
    more ).
    
    My question is :
    What situations/conditions/events make the initiator to establish 
    subsequent
    connections ?
    
    From my understanding, one definite event is when the leading connection
    goes down,
    thus, making the initiator to establish a new connection (for continuing 
    the
    session ) which
    holds true even if MaxConnections = 1.
    
    Are the second and later connection(s) attempted immediately after the 
    first
    connection is successful ?
    
    A seemingly related question on the alias earlier (from the mailing
    archives) suggests that connection
    establishment/selection is done by an iSCSI initiator to improve
    bandwidth/availability.
    Does this mean that "when to spawn consecutive connections" is purely
    implementation dependent ?
    
    Does any section of the draft clarify my question ?
    
    Please clarify.
    
    Thanks,
    Nandakumar.
    
    
    
    
    
    
    


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