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    Re: iSCSI: A bit and followed by separate Status PDU




    It refers to both the S bit or a separate response. If the initiator processes a Response before it issues the SNACK it can act the same way as when status is embedded. Target frees resources if ExpStatSN passes over the status - Julo


    Eddy Quicksall <eddy_quicksall@ivivity.com>
    Sent by: owner-ips@ece.cmu.edu

    06/14/2002 04:47 PM
    Please respond to Eddy Quicksall

           
            To:        ips@ece.cmu.edu
            cc:        
            Subject:        iSCSI: A bit and followed by separate Status PDU

           


    9.7.2 says:

    On receiving a Data-In PDU with the A bit set to 1, if there are no
    holes in the read data until that Data-In PDU, the initiator MUST
    issue a SNACK of type DataACK except when it is able to acknowledge
    the status for the task immediately via ExpStatSN on other outbound
    PDUs if the status for the task is also received; in this latter case
    (acknowledgement through ExpStatSN) sending a SNACK of type DataACK
    in response to the A bit is not mandatory but if it is done it must
    not be sent after the status acknowledgement through ExpStatSN.

    Regarding the "if the status for the task is also received" ... is that
    referring to the S bit and A bit within the same PDU or is there some other
    case I'm missing?

    Eddy
    <mailto:Eddy_Quicksall@iVivity.com> mailto:Eddy_Quicksall@iVivity.com





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Last updated: Fri Jun 14 15:18:46 2002
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