On Wed, Nov 30, 2005 at 09:52:22AM -0000 or thereabouts, Jensen, J (Jens) wrote:
> So Steve is absolutely right, as usual - you should be able to
> keep using 1.1 clients to talk to 2.1 servers *if* the 2.1 servers
> provide also a 1.1 interface (which DPM at least does - not
> sure about dCache - presumably you will be able to run a 1.1 door
> and a 2.1 door, but can they share the same port, 8443?)
>
> The only issues I can think of for coexistence are:
>
> 1. Publishing both interfaces - I can't see that the current DPMs
> are publishing their 2.1 interfaces. GlueSEArchitecture is
> set to srm_v1.
>
> 2. The tapestore will publish only a 2.1 interface, no 1.1.
>
> We'll probably find a few more as we go along.
As you say there will probably be problems along the way but preserving
the 1.1 interfaces as the 2.1 interfaces is really the only way to
go. I can easily see the 1.1 interfaces needed a year after the 2.1 interfaces
are available.
Steve
>
> Cheers,
> --jens
>
>
>
> -----Original Message-----
> From: GRIDPP2: Deployment and support of SRM and local storage
> management [mailto:[log in to unmask]]On Behalf Of Steve
> Traylen
> Sent: 30 November 2005 09:12
> To: [log in to unmask]
> Subject: Re: Deployment of SRMv2.1
>
>
> On Wed, Nov 30, 2005 at 08:30:26AM -0000 or thereabouts, Coles, J (Jeremy) wrote:
> > Dear All
> >
> >
> >
> > Earlier Jamie Shiers was presenting on SC4 preparation and it became
> > apparent that although the implementations of SRMv2.1 may be available
> > in January, the experiments may not be ready to use the upgraded
> > versions. Apparently the interfaces change between v1.1 and v2.1 in such
> > a way that current service interfaces will not work in a backward
> > compatible manner. This could impact when we want to move sites over to
> > v2.1 and should be factored into our milestones. I will try to find out
> > more but perhaps some of you already know more on this topic?
>
> Moving v2.1 is I believe not a decisisve moment. Both dcache and DPM
> will have both interfaces available. The v1.1 interface will never
> go away, both will be available. It is then up to clients which one
> they use. Someone can hopefully confirm that at the storage meeting
> today.
>
> Steve
> >
> >
> >
> > Jeremy
> >
> >
> >
> > ------------------------------------------------------------------------
> > --------------------------------
> >
> > Dr Jeremy Coles
> >
> > GridPP Production Manager
> >
> > CCLRC eScience Department Phone: (+44)(0)1235 778256
> >
> >
> > Rutherford Appleton Laboratory Fax: (+44)(0)1235
> > 446626
> >
> > Chilton, Didcot, Oxon, OX11 0QX, UK Email: [log in to unmask]
> >
> > ------------------------------------------------------------------------
> > ----------------------------------
> >
> >
> >
>
> --
> Steve Traylen
> [log in to unmask]
> http://www.gridpp.ac.uk/
--
Steve Traylen
[log in to unmask]
http://www.gridpp.ac.uk/
|