DataTAG Work Package 4 Meeting

Bologna

Simone LudwigBrunel University

23rd and 24th of May 2002

2

Overview

• UK Testbed ActivitiesSoftware ReleasesStatus OverviewTestbed at RALFurther Activities

• PPARC Effort in WP4 DataTAG• Work done so far• Work Plan

3

Software Releases

• Deployment largely driven/limited by EDG software release status and cycles

• 3 major releases with three yearly Testbeds 1, 2 and 3• Minor releases every 2 months, and then patch level

releases between those• Currently there is a mixture of sites with:

– some version of the Globus gatekeeper– old Globus 1.1.3 installations– Globus 2.0/2.0beta installations, including

• EDG installations (using 2.0beta), usually just a Computing Element

• BaBar installations of EDG CE

4

Status Overview

Green Dot G1.1.3 G2.0(b) EDG-CEBabar-CEBirmingham y y yBristol y y y y yBrunel y yCambridge yEdinburghy yGlasgow y yImperial y y yLancaster y yLiverpool y yManchester y y y y yOxford y yQMUL y y yRAL y y y yRHUL y yUCL y

5

Testbed at RAL

Hardware Purchase installed March156 Dual 1.4GHz 1GB RAM, 30GB disks (312 cpus)26 Disk servers (Dual 1.266GHz) 1.9TB disk eachExpand the capacity of the tape robot by 35TB

Current EDG TB setup14 Dual 1GHz PIII, 500MB RAM 40GB disksCompute Element (CE)Storage Element (SE)User Interfaces (UI)Information Node (IN)+ Worker Nodes (WN)

+ Existing Central Facilities (Non Grid)250 CPUs10TB Disk35TB Tape (Capacity 330 TB)

6

Further Activities

• Testbed 1.2 Integration started last week• TB2.0 September 2002

– Several major releases of software due

• TB3.0 March 2003– First feasible release using OGSA– Even if early adopters start now

• EDG already adopted by other Grids– Pressure to expand testbeds or integrate

with others– DataTAG, CrossGrid, GLUE

7

PPARC Effort in WP4 DataTAG

Involved in

• 4.1: Networked Resource Discovery Systems - Service Discovery

• 4.3: Interworking between domain-specific collective Grid services - Interoperability

8

Work done so far

• Induction to Grid technologies• Development and Installation of

GLOBUS Grid Lab Environment• Analysis of Grid services• Review of Analysis, Modelling and

Reverse-engineering tools• Investigating of Schema notations• Investigation of different Resource

Discovery Systems (Jini, SDS, LDAP)

9

Work Plan

• Investigation of various experiments (CMS, BaBar) in order to find requirements necessary for Grid operation -> Service Discovery

• Investigation of Web Service Technology to get an idea of a common framework

• Definition of a Common Framework in which interfaces and protocols can be specified and modelled (-> Interoperability)

• Development of Test Cases to verify and validate the interoperability issues