OGSA-DAI Current Version Guy Warner NeSC Training Team

Induction to Grid Computing and the National Grid Service Acknowledgement These slides were part of a presentation by Neil Chue Hong at the e-Science All Hands Meeting, Nottingham September 2005.

2005 Timeline Release 1 interim Release 2 Release 2 interim Release 3 Release 3.1 Release 4 Release 5 OGSI Release 6  Release 1 OGSA-DAI WSRF 1.0 OGSA-DAI WS-I 1.0/ OGSA-DAI WS-I 1.1 (OMII)

Our stakeholders OMII –Current version of OGSA-DAI WS-I 1.0 distribution runs on OMII –Release 1.1 due out soon –Issues when security is introduced Globus –WSRF distribution bundled with GT4.0 –WSRF 1.0 distribution bundled with GT4.0.1 Projects –Number of projects have used/use/will use OGSA-DAI AstroGridBiogridBioSimGridBridgescaGridDataMiningGrid eDiamondFirstDigGEDDMGeneGridGEONGridMiner INWAIU RGRBenchLEADMCS my GridN2Grid ODD-GenesOGSA-WebDBSIMDATGOLD

Out with the old… Client Client Toolkit API Relational XML Files Client Server Data SOAP DAISGR GDS GDSF

… in with the new! Client Generic Client Toolkit API WS-I WSRF DAI Core DSR Data Service WSRF WS-I DSR RelationalXML Files Client Server Data SOAP

Changes in moving to WSRF/WS-I Registry component (DAISGR) no longer supported –Hope to leverage of third party registration services –GRIMOIRES ( –Others … GDS/GDSF roles combined –Use data services –Currently static services but –Reconfigurable services Improvements to the GDS –Data resource abstraction decoupled from the service –Renaming (consistent naming across platform versions) –Ability to enforce control flow constraints (ordering activities) –Refactored exception framework Temporary set-backs (we promise we’ll fix them) –No security model –No concurrency –Previously used GDSs for concurrency –Support now moving to the engine

Further information The OGSA-DAI Project Site: – The DAIS-WG site: – OGSA-DAI Users Mailing list –General discussion on grid DAI matters Formal support for OGSA-DAI releases – OGSA-DAI training courses