[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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