February 2007 - ogsa-dmi-wg

28 Feb 07 conference minutes
by Michel Drescher 28 Feb '07

28 Feb '07

Folks, the phone conference minutes are on GridForge: http://forge.gridforum.org/sf/go/doc14263?nav=1 Cheers, Michel -- Michel <dot> Drescher <at> uk <dot> fujitsu <dot> com Fujitsu Laboratories of Europe +44 20 8606 4834

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Proposed Agenda for 27/2/07 call
by Michel Drescher 27 Feb '07

27 Feb '07

Dear OGSA-DMI participants, this is the proposed agenda for the upcoming OGSA-DMI telecon on Wed, Feb 28, 2007 at 16:00 to 17:00 UTC. For local timezone translations, please visit http://www.timeanddate.com/worldclock/fixedtime.html?day=28&month=02&year=2… To subscribe to the OGSA-DMI calendar, go to http://forge.gridforum.org/sf/linkedapplication/do/viewLinkedApplication/pr… The dial-in numbers are: UK: +44 (0) 207 9783 410 US: +1 718 354 1177 (East Coast) +1 408 961 6567 (West Coast) JP: +81 (0) 335 708 280 More numbers may be added upon request. Participant passcode is: 2051278 Screen share service will be provided. URL: http://ogsa-dmi.glance.net/?key=0228 Session key: 0124 PROPOSED AGENDA =============== Note: ** OGF IPR POLICY APPLIES ** http://www.ogf.org/About/abt_policies.php 1) Early discussion (5 min) Note taker assignment Roll call Telecon minutes approvals - 21 Feb 07: https://forge.gridforum.org/sf/go/doc14247?nav=1 Agenda bashing 2) Functional Specification (50 min) Current draft: http://forge.ogf.org/short/OGSA-DMI-WG/spec 3) Wrap up (5 min) AOB -- Michel <dot> Drescher <at> uk <dot> fujitsu <dot> com Fujitsu Laboratories of Europe +44 20 8606 4834

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DMI Factory Concern
by Allen Luniewski 23 Feb '07

23 Feb '07

I have read through the current draft of the specification. My big concern after reading this is the way in which a DMI factory is going to get its job done. Consider what a factory has to do. It is given a source, S0, and a sink, S1, to move data between, as well as other important information. But let's concentrate on the source and sink aspects at this point. The factory also support doing transfers using one or more transfer mechanisms/protocols, call them P0...PN. The fundamental problem facing the factory is to find which of the Pi are supported by both S0 and S1 and which will meet the QoS goals of the transfer. I am struggling to understand how the factory can find which of the Pi are mutually supported. The current specification provides no architected mechanism for making this determination. With no architected mechanism, the factory must have a means, presumably specific to each Pi, of asking S0 and S1 if they support Pi. I suppose that this is a solution but doesn't it then place a requirement on the specification of each possible transfer mechanism to provide such an interface? Do all transfer mechanisms have this, especially those already with approved specifications or, even, de facto specifications? Another approach would be for the factory to run through the Pi trying to create a transfer using that Pi. Possible, does not add additional requirements on the specifications of transfer protocols but it sure seems inefficient to me. Is there some other way of doing this without placing something in the DMI spec? In the Data Architecture document (http://forge.ogf.org/sf/go/doc14053?nav=1) we explicitly attacked this problem. We proposed a simple interface provided by each data service that allows the DMI factory to get a list of the transfer protocols supported by that service. This seemed to us to be simple to specify, effective in solving the problem and easy to implement in a data service. I suggest that DMI take this approach and architect such an inquiry interface between DMI factories and sources/sinks. Comments? Suggestions? Allen Luniewski IBM Cross Brand Services IBM Silicon Valley Laboratory 555 Bailey Ave. San Jose, CA 95141 408-463-2255 408-930-1844 (mobile)

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Re: [ogsa-dmi-wg] DMI Factory Concern
by Maguire_Tom＠emc.com 22 Feb '07

22 Feb '07

Sounds like you need WS-DMIPolicy attachment specification...... I have read through the current draft of the specification. My big concern after reading this is the way in which a DMI factory is going to get its job done. Consider what a factory has to do. It is given a source, S0, and a sink, S1, to move data between, as well as other important information. But let's concentrate on the source and sink aspects at this point. The factory also support doing transfers using one or more transfer mechanisms/protocols, call them P0...PN. The fundamental problem facing the factory is to find which of the Pi are supported by both S0 and S1 and which will meet the QoS goals of the transfer. I am struggling to understand how the factory can find which of the Pi are mutually supported. The current specification provides no architected mechanism for making this determination. With no architected mechanism, the factory must have a means, presumably specific to each Pi, of asking S0 and S1 if they support Pi. I suppose that this is a solution but doesn't it then place a requirement on the specification of each possible transfer mechanism to provide such an interface? Do all transfer mechanisms have this, especially those already with approved specifications or, even, de facto specifications? Another approach would be for the factory to run through the Pi trying to create a transfer using that Pi. Possible, does not add additional requirements on the specifications of transfer protocols but it sure seems inefficient to me. Is there Tom +1 (845) 729-4806 Blackberry Connect for Palm

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Proposed Agenda for 21/2/07 call
by Michel Drescher 21 Feb '07

21 Feb '07

Dear OGSA-DMI participants, this is the proposed agenda for the upcoming OGSA-DMI telecon on Wed, Feb 21, 2007 at 16:00 to 17:00 UTC. For local timezone translations, please visit http://www.timeanddate.com/worldclock/fixedtime.html?day=21&month=02&year=2… To subscribe to the OGSA-DMI calendar, go to http://forge.gridforum.org/sf/linkedapplication/do/viewLinkedApplication/pr… The dial-in numbers are: UK: +44 (0) 207 9783 410 US: +1 718 354 1177 (East Coast) +1 408 961 6567 (West Coast) JP: +81 (0) 335 708 280 More numbers may be added upon request. Participant passcode is: 2051278 Screen share service will be provided. URL: http://ogsa-dmi.glance.net/?key=0221 AGENDA ====== 1) Early discussion (5 min) Note taker assignment Roll call Telecon minutes approvals 1 Feb (OGF-19): http://forge.gridforum.org/sf/go/doc14181?nav=1 7 Feb: http://forge.gridforum.org/sf/go/doc14227?nav=1 Agenda bashing 2) Functional Specification (50 min) Current draft: http://forge.ogf.org/short/OGSA-DMI-WG/spec 3) Wrap up (5 min) AOB -- Michel <dot> Drescher <at> uk <dot> fujitsu <dot> com Fujitsu Laboratories of Europe +44 20 8606 4834

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OGF20 sessions
by Michel Drescher 20 Feb '07

20 Feb '07

Folks, session registration for OGF-20 is now open. I requested two sessions; please review them here: http://www.ogf.org/gf/session_request/index.php If you would like to amend or further constraint the sessions, please let Ravi and me know. Cheers, Michel -- Michel <dot> Drescher <at> uk <dot> fujitsu <dot> com Fujitsu Laboratories of Europe +44 20 8606 4834

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Unexpected compassion leave
by Michel Drescher 12 Feb '07

12 Feb '07

Folks, due to an unexpected emergency incident at home, I have to take off for at least the rest of the week. OGSA-WG: I will not be able to attend conference calls, particularly this week Thursday (having OGSA-Workflow scheduled). OGSA-DMI-WG: I will not be able to host the scheduled conference call this week Wednesday. Unless anybody else can back me up, the call will be cancelled. JSDL-WG: Regarding the Parameter Sweep proposed extension. Ali is briefed and will advance further without me for the time being. Sorry for any inconvenience. Cheers, Michel -- Michel <dot> Drescher <at> uk <dot> fujitsu <dot> com Fujitsu Laboratories of Europe +44 20 8606 4834

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OGSA-DMI Wiki
by Michel Drescher 09 Feb '07

09 Feb '07

Folks, I started using the OGSA-DMI Wiki on Gridforge, mainly for two reasons: a) A list of members along with their affiliations, mostly of use for phone conference note takers b) An overview of shortcuts in OGS-DMI. As you may already know, you can create URL shortcuts on Gridforge for nicer URLs that can be copy-and-pasted into E-Mails etc. I created two shortcuts, which are listed on the Wiki page. Please check the affiliations page and solicit the correct spelling and affiliation. If you are not in the list, please consider joining OGSA-DMI on Gridforge, and add your name and affiliation to the Wiki. Thanks and best regards, Michel -- Michel <dot> Drescher <at> uk <dot> fujitsu <dot> com Fujitsu Laboratories of Europe +44 20 8606 4834

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New spec version 004
by Michel Drescher 07 Feb '07

07 Feb '07

Folks, I uploaded the specification version 004 to Gridforge: http://forge.ogf.org/short/OGSA-DMI-WG/spec I changed the undo strategy section as per today's phone conference. I release the pen to anybody volunteering for working on the document. Cheers, Michel -- Michel <dot> Drescher <at> uk <dot> fujitsu <dot> com Fujitsu Laboratories of Europe +44 20 8606 4834

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Proposed Agenda for 7/2/07 call
by Michel Drescher 07 Feb '07

07 Feb '07

Dear OGSA-DMI participants, this is the proposed agenda for the upcoming OGSA-DMI telecon on Wed, Feb 7, 2007 at 16:00 to 17:00 UTC. For local timezone translations, please visit http://www.timeanddate.com/worldclock/fixedtime.html?day=07&month=02&year=2… To subscribe to the OGSA-DMI calendar, go to http://forge.gridforum.org/sf/linkedapplication/do/viewLinkedApplication/pr… The dial-in numbers are: UK: +44 (0) 207 9783 410 US: +1 718 354 1177 (East Coast) +1 408 961 6567 (West Coast) JP: +81 (0) 335 708 280 More numbers may be added upon request. Participant passcode is: 2051278 Screen share service will be provided. URL: http://ogsa-dmi.glance.net/?key=0207 Session key: 0207 AGENDA ====== 1) Early discussion (10 min) Note taker assignment Roll call Telecon minutes approvals OGF19 session1+2 minutes: http://forge.ggf.org/sf/go/doc14181?nav=1 Agenda bashing 2) OGSA-DMI F2F (Michel, 20 min) Zoomerang survey: http://www.zoomerang.com/survey.zgi?p=WEB226579QTJRS 3) Functional Specification stab (All, 30 min) Current document version 003: http://forge.ggf.org/sf/go/doc14200?nav=1 10) Wrap up (10 min) AOB -- Michel <dot> Drescher <at> uk <dot> fujitsu <dot> com Fujitsu Laboratories of Europe +44 20 8606 4834

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