Ang: Re: [Stgt-devel] Re: [Iscsitarget-devel] stgt a new version of iscsi target?

Ming Zhang mingz at ele.uri.edu
Wed Dec 7 15:11:07 CET 2005


my 2 cents

most iscsi hba are still closed sourced, at least they only provide
source code sdk to customers or oem developers. so it will be hard to
integrate them unless their own engr do it.

toe is not here, not in scsi domain. toe will be treated as NIC and use
software iscsi target stack coming with stgt. nic is same thing here.

fc/sas, or maybe old parallel scsi will integrate with stgt just like
what qla + scst does now. 

i remember Mike mentioned that he is working on a qla+stgt. also lsi
+stgt is claimed.


ming



On Wed, 2005-12-07 at 13:51 +0100, johan at capvert.se wrote:
>                                         Hi, Mike!
> 
> 
> I, and I suppose a lot of other people, would like know how you look at the
> HW support on the Fc side? I don´t know what you mean now, when you talk
> about HW target support, if you talk iScsi HBA, TOE HBA, NIC, or Fc HBA, or
> all of them. Since I´m very much on the Fc side, I´m especially interested
> in your developement strategy for Fc. How is your priority list look like?
> 
>                Best regards from/Med vänliga hälsningar från
> 
>                                  Johan Kragsterman
> 
>                                http://www.capvert.se
> 
> 
>                                                                                                                       
>                     Mike Christie                                                                                     
>                     <michaelc at cs.wisc       Till:   mingz at ele.uri.edu                                                 
>                     .edu>                   Kopia:  Robert Whitehead <WRWHITEHEAD at novell.com>,                        
>                     Sänt av:                 iscsitarget-devel at lists.sourceforge.net, stgt                            
>                     stgt-devel-admin@        <stgt-devel at lists.berlios.de>                                            
>                     berlios.de              Ärende: Re: [Stgt-devel] Re: [Iscsitarget-devel] stgt a new version of    
>                                              iscsi target?                                                            
>                                                                                                                       
>                     2005-12-07 11:00                                                                                  
>                                                                                                                       
>                                                                                                                       
> 
> 
> 
> 
> Ming Zhang wrote:
> > On Tue, 2005-12-06 at 10:58 -0700, Robert Whitehead wrote:
> >
> >>>>>>Ming Zhang <mingz at ele.uri.edu> 12/6/2005 10:32 am >>>
> >>>
> >>>on Tue, 2005-12-06 at 09:56 -0700, Robert Whitehead wrote:
> >>>
> >>>>In a couple of the iscsitarget mail threads there is the reference
> >>
> >>to
> >>
> >>>>the new stgt implementation which is hosted on the
> >>>>http://developer.berlios.de web site.  In addition, it also looks
> >>>>like the lasted source code for the IET project has been moved to
> >>
> >>an
> >>
> >>>>iscsitarget project hosted on the developer.berlios.de site.  In
> >>
> >>fact
> >>
> >>>>doing a cvs browse on this website (sourceforge) doesn't work and
> >>
> >>in
> >>
> >>>>order to see the sourcecode and you have to go to the berlios
> >>
> >>website to
> >>
> >>>>get the latest iscsitarget code.
> >>>>
> >>>>My question is what is the future of the IET project?
> >>>>
> >>>
> >>>feature freeze and keep it stable.
> >>>
> >>>
> >>>
> >>>
> >>>>It appears the stgt is the new direction.  If so what is the
> >>
> >>motivation
> >>
> >>>>for stgt?
> >>>>
> >>
> >>>stgt is a middle layer for different transports. so u can have iscsi,
> >>>fc, sas,... later under same umbrella.
> >>
> >>>ming
> >>
> >>What is the time frame for having initial release of stgt?
> >>Is it is a good state that if I download stgt and build it, will it
> >>function as an iscsi target now?
> >>
> >>Robert
> >>
> >
> >
> > i am not a stgt developer, so i could not tell u the time frame. i think
> > it still need some work before it becomes as stable as iet.
> >
> 
> Yeah it is very unstable at the moment. We are in the middle if adding
> HW target support so probably scst or IET alone if you just need iscsi
> is better. We have also been trying to figure out a way to reuse some of
> the block layer code for things like barriers/MSG_*, tags, requests and
> queue limits etc and that is really a experiment at the moment.
> _______________________________________________
> Stgt-devel mailing list
> Stgt-devel at lists.berlios.de
> http://lists.berlios.de/mailman/listinfo/stgt-devel
> 
> 
> 
> 



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