[dmis-bof] Updated Charter
William E. Allcock
allcock at mcs.anl.gov
Tue Mar 14 14:29:17 CST 2006
Ok, next iteration is attached. We tried to address the comments we had
received so far.
Bill
> -----Original Message-----
> From: owner-dmis-bof at ggf.org [mailto:owner-dmis-bof at ggf.org]
> On Behalf Of Robert B. Wood
> Sent: Tuesday, March 14, 2006 10:07 AM
> To: Michel Drescher
> Cc: allcock at mcs.anl.gov; dmis-bof at ggf.org
> Subject: Re: [dmis-bof] Updated Charter
>
> In my opinion, "4th party data transfer" as a term such as described
> below offers more debate than value. To my understanding, a
> 3rd party
> copy operation is a data transfer between two data stores that is
> initiated by [at least] one of the data stores or devices themselves,
> without the aid or instruction of the user or their
> server/application
> code. It was originally coined in the realm of data backup.
>
> When an agent of the user (including the user him or herself)
> initiates
> a data transfer and the data transfer path includes the
> user's system,
> that is a first party operation. When an agent initiates a data
> transfer directly between two data stores or devices, without placing
> their server in the data stream, this is an extended data movement
> operation; what is referred to as extended copy or serverless
> backup in
> the data backup realm.
>
> The usage of these terms is pretty well codified in the SCSI-3
> specification and implemented in storage products.
>
> I'm not suggesting that management of agents, like the "truly
> independent service" that Michel describes is trivial, in
> fact the data
> security aspects can be quite challenging. Also the line
> between direct
> control and independent operations is pretty fuzzy, as data movements
> rarely occur without some user involvement, be it simply an
> exersize of
> a service level agreement with the data storage service provider[s].
>
> Just a couple of comments to the comments to the comments ... Bob
>
> Michel Drescher wrote:
>
> > Bill,
> >
> > some comments, related to the comments you put in the
> charter document:
> >
> > 4th party data transfer:
> > I see 3 different scenarios for data movement. Let's assume
> we have a
> > (data) source and a (data) destination. We also have a user that
> > wants data moved. If the user is the source, we have a direct pull
> > case, if the user is the destination, then we have a direct push
> > case. If the user tells the source to move some data to the
> > destination, then this is 3rd party push, if the user tells the
> > destination to get some data, then this is 3rd party pull.
> > Well, if the user tells a truly independent service to initiate a
> > data transfer from source to target, then this is very
> similar to 3rd
> > party data transfer, but different enough as there is a 4th
> instance
> > participating in the data movement.
> >
> > Transport protocols:
> > Yes I meant application level protocols from a network
> point of view,
> > such as GridFTP, HTTP, FTP, etc.
> >
> >
> > Regarding the timeline:
> > The short term planning is ambitious, but manageable, I think,
> > especially if we can appreciate broad contribution support.
> >
> > Cheers,
> > Michel
> >
> > On 13 Mar 2006, at 22:41, William E. Allcock wrote:
> >
> >> All,
> >>
> >> Michel and I have updated the charter based on discussions
> that took
> >> place
> >> at GGF16. They are already scheduling slots for next GGF, so we
> >> need to
> >> ratify this charter ASAP and become a full fledged working
> group. The
> >> charter is short, only a couple of pages of text and a table with
> >> goals and
> >> timelines. This shouldn't take long, so please take a few
> minutes
> >> now and
> >> review this.
> >>
> >> In particular we would like comments on:
> >>
> >> - Do you agree with the focus and scope
> >> - Do you think the Goals and timeline are reasonable?
> Are we missing
> >> anything?
> >> - Which documents / implementations would you be willing
> to work on?
> >>
> >> Thanks, and I hope to see you in Tokyo.
> >>
> >> Bill
> >>
> >> ---------------------------------------------------------------
> >> William E. Allcock
> >> Argonne National Laboratory
> >> Bldg 221, Office B-139
> >> 9700 South Cass Ave
> >> Argonne, IL 60439-4844
> >> Email: allcock at mcs.anl.gov
> >> Office Phone: +1-630-252-7573
> >> Office Fax: +1-630-252-1997
> >> Cell Phone: +1-630-854-2842
> >>
> >> <charter-v3.doc>
> >
> >
>
> --
> Bob Wood
> Network Storage Architecture Office
> Sun Microsystems Inc.
>
> 303.395.3801 (x43011)
> Robert.B.Wood at Sun.com
>
>
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