INFN & Globus activities Massimo Sgaravatto INFN Padova

Initial tests Globus installed on 5 Linux PCs in 3 sites (Bologna, CNAF, Padova) Lots of problems accessing the American MDS server !!! Problems with automatic population and update of information Long response time Time out Not possible to test other services (i.e. GRAM)

Current status Italian GIS CNAF Globus installed on ~ 15 machines in 8 sites (Bari, Bologna, CNAF, LNL, Milano, Napoli, Padova, Pisa) WP Installation and Evaluation of the Globus Toolkit of the INFN-GRID Project ( INFN-GRID/Globus)

Objectives Goal: evaluate the Globus toolkit as a GRID framework providing basic services Which services can be useful ? What is necessary to integrate/modify ? What is missing ? Duration: 6 months (2000) Results of this first evaluation used to plan future activities

Tasks Globus deployment Security Information Service Resource Manager Data Access and Migration Fault Monitoring Execution Environment Management

Globus deployment Goal: reduce complexity for installation and maintenance limiting the manpower Central Globus administrators responsible to: implement and maintain a central software repository develop tools and documentation to enable local administrators to quasi-automatically install Globus on local resources

Security (GSI) Implementation of local Certification Authority Relations with other CAs Integration of existing applications with GSI authentication mechanisms

Information Service (GIS) Tests on performance and scalability Results used to define and implement the information service architecture Tools and interfaces for Grid users and administrators Integrate the default information with other info, provided by specific agents

Resource Management (GRAM) Job submission on remote resources that dont rely upon resource management systems Evaluation of GRAM with (local) resource management systems (LSF, Condor) RSL as uniform language to describe resources Translation from RSL to the specific resource description language Cooperation between GRAM and GIS

Data Access and Migration Evaluation of GASS APIs to access remote files Adaptation of existing applications Evaluation of GASS and GSIFTP for data migration in LAN and WAN

Fault Monitoring (HBM) Evaluation of services for fault detection for Globus processes other system processes (i.e. http, ams, …) user processes Data collectors Detect and notify about failures Recovery mechanisms (i.e. automatic restart of crashed processes)

Execution Environment Management (GEM) Evaluation of GEM as service for code migration staging of executable location and/or instantiation of runtime libraries

Deliverables & Milestones Deliverables Tools, documentation and operational procedures for Globus deployment (6 Months) Final report on suitability of the Globus toolkit as basic Grid infrastructure (6 Months) Milestones Basic deployment grid infrastructure for the INFN GRID (6 months)

Personnel Contribution Bari Maria DAmato, … Bologna F. Semeria Catania R. Barbera, E. Cangiano, C. Rocca CNAF A. Chierici, R. Cucchi, L. Fonti, A. Italiano, G. Vita Finzi Lecce M. Cafaro, L. Depaolis, E. Fasanelli LNF A. Martini, E. Pace LNL M. Biasotto Milano G. Lo Biondo, F. Prelz Padova M. Sgaravatto Pisa G. Bagliesi, F. Donno, A. Sciaba`, Z. Xie Torino C. Anglano, A. Forte, L. Gaido

First activities & results Security (see Francescos presentation) GIS (see Giuseppes presentation) GRAM (see Massimos presentation) GARA (see Robertos presentation) Evaluation of GSIFTP (in LAN and WAN environments) Ongoing tests with Globus 1.1.3