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    Re: iscsi: rev 05 - section 2.5.1 is incomplete



    
    
    Will fix.
    
    It should read:
    
       For the <Clear Task Set>, the target MUST enter a Unit Attention
       Condition for all other attached initiators to inform them that all
       pending tasks are cancelled. After reporting the Unit Attention
       Condition the target MUST enter the ACA state for any initiator for
       which it had pending tasks.
    
       For the <Target Warm Reset> and <Target Cold Reset> functions, the
       target cancels all pending operations and are both equivalent to the
       Target Reset as specified by SAM-2.  The target MUST enter a Unit
       Attention Condition for all attached initiators notifying them that the
       target is being reset.
    
       In addition, for the <Target Warm Reset>, after reporting the Unit
       Attention Condition, the target enters the ACA state on all sessions and
       all LUs on which the condition was reported.
    
       In addition, for the <Target Cold Reset> the target then MUST terminate
       all of its TCP connections to all initiators (all sessions are
       terminated). However, if the target finds that it cannot send the
       required response or AEN, it MUST continue the reset operation and it
       SHOULD log the condition for later retrieval. The logging operation MUST
       be reported through the target MIB.
    
       Further actions on reset functions are specified in the relevant SCSI
       documents for the specific class of devices.
    
    
       Thanks,
       Julo
    
    Ralph Weber <ralphoweber@compuserve.com> on 13/03/2001 06:09:08
    
    Please respond to ENDL_TX@computer.org
    
    To:   IPS Reflector <ips@ece.cmu.edu>
    cc:
    Subject:  iscsi: rev 05 - section 2.5.1 is incomplete
    
    
    
    
    The following statement is only half true:
    
       For the <Clear Task Set>, if the SCSI control mode
       enables AE reporting, the target MUST send an
       Asynchronous Event to all other attached initiators
       to inform them that all pending tasks are cancelled.
    
    If the SCSI control mode [page] does not enable AE
    reporting, then the target MUST establish a unit
    attention condition for all other attached initiators.
    
    In fact, the target must establish a unit attention
    condition regardless of the contents of the SCSI
    control mode page.  At this is specified in SAM-2.
    What the control mode pages does is tell the target
    how to report that unit attention condition; via
    a Check Condition on the next command received, or
    via an asynchronous event report.
    
    Someone might read the iSCSI version 05 text as
    releasing them from the SAM-2 requirement, which
    I doubt will be helpful to the SCSI community
    at large.
    
    The same problem exists in the following 2.5.1
    text:
    
       For the <Target Warm Reset> and <Target Cold Reset>
       functions, the target cancels all pending operations
       and are both equivalent to the Target Reset as
       specified by SAM-2.  Provided that SCSI control mode
       enables AE reporting, the target MUST send an
       Asynchronous Event to all attached initiators
       notifying them that the target is being reset.
    
    FYI
    
    Ralph...
    
    
    
    
    


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Last updated: Tue Sep 04 01:05:21 2001
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