Re: iSCSI: current UNH Plugfest

["Robert D. Russell" <rdr@mars.iol.unh.edu>]

Julian:

Comments below:

> 4. Situation: The initiator and target have successfully completed the
>    login phase for a discovery session and are now in full feature phase.
>    The initiator sends a text command containing the single key:
>    "SendTargets=".  What response is expected from the target?
> 
> 
>    Interpretation 1:
> 
>    According to the explanation on page 188 of draft 8 (page 189 of
>    draft 8a):
>    "If no target name is specified, the session should respond with
>    addresses only for the target to which the session is logged in.
>    This MUST be supported on operational sessions, and MAY NOT
>    return targets other than the one to which the session is logged in."
> 
>    However, for a discovery session there is no target per se (the
>    initiator does not specify a TargetName= during login), so the
>    target therefore follows the rule on page 188 of draft 8 (page 189
>    of draft 8a):
> 
> +++
> That is not strictly correct. You may use discovery to determine the 
> addresses and portal groups for a specific target - i.e. you may give a 
> target-name. If you give a target name that is all you get. If don't give 
> a name you get all the targets you are allowed to get to.
> ++++

If I understand this reply correctly, you are saying that
in a discovery session, when the initiator sends:
   SendTargets=
it should expect to receive all the targets it is allowed to get to.
Correct?


This leads to 2 further questions/points:

1. Is this response any different from the response the initiator will
get when it sends:
   SendTargets=all

2. If these responses are the same, then the explanation of <nothing>
on page 188 of draft 8 should be changed to indicate that this is what
happens for a discovery session.

Thanks,

Bob Russell
InterOperability Lab
University of New Hampshire
rdr@iol.unh.edu
603-862-3774