CCR 1-2 marzo 2010 Roma CCR 1-2 marzo 2010HEPiX Fall meeting 2010

CCR 1-2 marzo 2010 HEPiX Fall meeting Introduzione Meeting si è tenuto a NERSC/LBNL Berkeley Affluenza meno numerosa rispetto al precedente a Taipei Agenda e presentazioni # # Katherine Yelick (NERSC) ha presentato l’introduzione al meeting : Hardware and Software in the Multicore Era Parallelism is “Green” - Concurrent systems are more power efficient Single processors will not get faster Power and energy costs will dominate Work with experts on software, algorithms,applications

CCR 1-2 marzo 2010 HEPiX Fall meeting CERN Report CERN: Solaris phase-out scheduled for Only Linux and Windows remain Interested in virtualisation for some services 10 GigE to the server Migration off Symantec anti-virus to Microsoft Forefront completed Phasing out support for pine etc. considered for end 2010

CCR 1-2 marzo 2010 HEPiX Fall meeting Site Reports JLAB: Virtualizzazione con Vmware IN2P3 Home made batch system BQS in a process of migration to another BS OpenAFS e YFS: YFS will provide services and appliances direct to home, small business, and enterprise user Progetto finaziato pesantemente

File System and Storage Experience of Storm and Lustre at an ATLAS Tier-2 site (University of London): StoRM / Lustre – Good performance Tuning to do a Petabyte Filesystem Lustre is a complex system and vulnerable to (network) communication problems Good performance CCR 1-2 marzo 2010 HEPiX Fall meeting

File System e Storage Performance of Hadoop file system on a HEPiX storage workgroup testbed Hadoop is a distributed file system with map/reduce framework, designed to run on commodity cluster and make use of their local hard drives Already in use at a number of OSG site in production HEPiX storage WG has a test bed and reference data for performance comparison Virtualization within FermiGrid Virtualization is working well within FermiGrid - All services are deployed in Xen virtual machines. The majority of the services deployed in a variety of high availability configurations CCR 1-2 marzo 2010 HEPiX Fall meeting

Altre punti emersi PDFS: GPFS on all storage Michele - HEP-SPEC06 Measurement on Nehalem and Instanbul R&D Cern su iSCSI e consolidamento su Lustre Relazioni su HPSS: IN2P3, LBNL Virtualizzazione: CERN su virtualizzione con Hyper-V Andrea su virtualizzazione on-demand e Cloud Tony Cass su virtualizzazione WLCG CCR 1-2 marzo 2010 HEPiX Fall meeting

Security issues e altro LIP Lisbona: iSCSI da verificare STORM – ACLs Cyber-security update – CERN Intervento interessante Phishing addestramento utenza Valutazioni CERN per espansione calcolo senza nuovi edifici Hosting containers CCR 1-2 marzo 2010 HEPiX Fall meeting

SL Update Scientific Linux Update 29 public mirrors e 178 sites mirroring noti Security updates rilasciati per tutte le versioni supportate yum aggiornato per SL 5 Web site passa su http e non più su https Building SL xfs kernel module parte del kernel ora Non appena RHEL 5 Update 5 esce, verrà rilasciata S.L. 5.5 – stima maggio 2010 Per RHEL 6 rilascio previsto S.L /2010 CCR 1-2 marzo 2010 HEPiX Fall meeting

ITIL & Windows Presentazioni su ITIL – FERMILab e CERN ITIL is the most widely accepted approach to IT service management in the world ITIL is the only consistent and comprehensive documentation of best practice for IT Service Management Windows Positivo feedback utenti nell’uso Installazione su tutte le macchine dalla fine 2009 Fine 2010 fine supporto XP CCR 1-2 marzo 2010 HEPiX Fall meeting

Networking Interessante intervento Esnet sulla ottimizzazione delle reti ad alta velocità: Throughput Issues for High-Speed Wide- Area Networks To optimize TCP throughput, do the following: Use a newer OS that supports TCP buffer autotuning Increase the maximum TCP autotuning buffer size Use a few parallel streams if possible Use a modern congestion control algorithm CCR 1-2 marzo 2010 HEPiX Fall meeting

CCR 1-2 marzo 2010 HEPiX Fall meeting Prossimo LIP Lisbona Aprile Argomenti suggeriti per l’agenda: Virtualizzazione Storage & File System Site Report GRID & WLCG Monitoring - Infrastructure Benchmarking Network & Security Desktop support Operating System & Applications