Re: iSCSI - Change - Login/Text commands with the binary stage code

["Wheat, Stephen R" <stephen.r.wheat@intel.com>]

Julian,

1.3.6 ISID states that the target should check to see if the old session is
still active when a duplicate session is detected.

I have two questions, the second only if you answer in the affirmative on
the first ;^)

1. Is there a properly executed sequence of events (i.e., no coding error on
the target side) where the session is not active, but the target hadn't
taken notice of it?  It appears this as a protocol-specified means to work
around a flaw in a target's implementation.  I interpret the state diagram
transitions as being atomic wrt other commands.  I.e., the last logout would
result in the various transitions of the connection/session prior to the
initiator starting the session up again.  And the target would have
completed the transitions prior to handling a new session request.

2. If you answered (1) in the affirmative, then the word "Active" is not
consistent with the 6.3 Session State Diagram.  Does this mean the target
got lost, due to transport failures of any sort, in its transition from
Q3-to-Q2-to-Q1?  It sounds like the intent is to close the old session if
the session was in Q2 or Q4, presuming if it were in Q1,  it would not have
been found as a duplicate.

Stephen