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    Re: iSCSI Session Recovery - primary/secondary iSCSI targets?



    Dave,
    
    I am not sure what you are after.
    As long as you don't kill or let the session die you can keep it alive by
    replacing failing connections with new connections.
    If you let the session die but would like to rebuild the session with the
    target and initiator (the SCSI entities) perceiving the same nexus
    you can do this too - within the bounds of the naming structures.
    
    Julo
    
    
                                                                                                           
                        "Dave                                                                              
                        Francheski"           To:     Julian Satran/Haifa/IBM@IBMIL                        
                        <davef@seven-sy       cc:     <davef@seven-systems.com>                            
                        stems.com>            Subject:     iSCSI Session Recovery -                        
                                               primary/secondary iSCSI targets?                            
                        18-12-01 21:52                                                                     
                                                                                                           
                                                                                                           
    
    
    
    
    Julian,
    
    If there are multiple network paths from an iSCSI initiator to the *same*
    iSCSI target,
    and one of the paths permanently goes down, is there any *standardized* way
    of performing Session Recovery such that the iSCSI initiator can point to
    the
    iSCSI target using the alternate/secondary network path?   This would imply
    that the initiator would have to restart a session on a new set of
    connection(s)
    using the alternate network path (should the primary one continue to fail).
    
    Perhaps one way is to use multiple iSCSI target names/portals to represent
    each independent path through the network.   If this approach were taken,
    there doesn't appear to be any standardized way of retrieving
    *primary*/*secondary*
    iSCSI target names during Session failure recovery.
    (At least reading through section 8.11.4 of Draft 09 doesn't mention this.)
    
    
    Best regards,
    Dave Francheski
    Seven Systems Technologies
    575 Menlo Drive Suite 2
    Rocklin CA
    916-577-1281
    davef@seven-systems.com
    
    
    
    


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Last updated: Fri Dec 21 15:17:50 2001
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