FW: Preempting all target ports

Ralph O. Weber roweber at IEEE.org
Mon Dec 1 11:41:30 PST 2003


* From the T10 Reflector (t10 at t10.org), posted by:
* "Ralph O. Weber" <roweber at ieee.org>
*
I was looking at the case where there is a reservation in
place. My understanding is that an initiator can preempt
its own reservation.

Regards,

.Ralph

Ulrich, David wrote:

>
>
> -----Original Message-----
> From: Ulrich, David
> Sent: Monday, December 01, 2003 8:11 AM
> To: 'Ralph Weber'
> Subject: RE: Preempting all target ports
>
>
> In regard to the case of a preempt with no reservation in place, I 
> haven't been able to find any explicit statements to indicate that the 
> I_T nexus that the command was issued on is exempt from the removal of 
> the reservation key.  Is there something specific that conclusion "a" 
> below is based on?
>
> Best Regards,
>
> David Ulrich
> Staff Software Engineer
> LSI Logic Storage Systems
> 3718 N. Rock Road
> (316) 636-8871
> david.ulrich at lsil.com
> www.lsilogicstorage.com
>
> > LSI Logic Storage Systems
> > AT THE HEART OF INFORMATION
> >
>
>
> -----Original Message-----
> From: Ralph Weber [mailto:roweber at IEEE.org]
> Sent: Sunday, November 30, 2003 10:36 AM
> To: T10 Reflector
> Subject: Preempting all target ports
>
>
> * From the T10 Reflector (t10 at t10.org), posted by:
> * Ralph Weber <roweber at ieee.org>
> *
> Suppose that an initiator registers using the ALL_TG_PT option.
>
> Sometime later for whatever reason, the initiator decides to
> preempt its own reservation key.
>
> Would you expect that:
>
>   a) the registration is preempted on all target ports except
>      the target port through which the preempt was delivered, or
>   b) the registration is not preempted on any of the target
>      ports associated with the preempting initiator?
>
> I believe that SPC-3 says a). Furthermore, the a) interpretation
> is being solidified by seemingly editorial requests to change
> 'initiator port' to 'I_T nexus' throughout the Persistent
> Reservations model.
>
> FYI
>
> .Ralph
>
>
> *
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