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Scalable request/response protocol. Multi-threaded multi-process architecture ... Multi-protocol Authentication. Supports distributed heterogeneous environments ...
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The Three Legged Stool. Scalable High Performance Data Access. Non-trivial task ... Servers may be dynamically added and removed. Flexible Security ...
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No config file needed for non-complicated/small installations. Generality ... Uses load balancing to effect recovery. New servers can be added at any time ...
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Multi-protocol authentication support. Scalable authorization. Jauuary 13, 2003 ... Compatible Protocol. Allows transparent use of rootd & xrootd. Multi-Streaming ...
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... from 70 sites in 10 countries ... 1-2GHZ CPU's spread over 35 sites world-wide. Work is distributed across ... Proxy Implementation. Uses ...
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The trick is to do so in a way that. Cluster overhead (human & non-human) scales linearly ... High performance and clustering are synergetic ...
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could nonetheless be used, though at the expense of ... credential file, use of system password file, auto-login, ... Used in PROOF in the present approach ...
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Xrootd provides a Posix I/O interface. open(), close(), read(), write(), etc., in addition to ... Sync creation and deletion of shadow file and real data file ...
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Hierarchical directory-like name space of arbitrary files ... Firewalled and. Replicated for scaling. Preload. Library. GSI. FTP. xrootd. Firewall. Client ...
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The Next Generation Root File Server Andrew Hanushevsky Stanford Linear Accelerator Center 27-September-2004 http://xrootd.slac.stanford.edu What is xrootd?
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Host1 /atlas/xrootd/file1. Host2 /atlas/xrootd/file2. Host3 /atlas/xrootd/file3. Host1 /atlas/xrootd/file4. To analyze dataset1: Dagman jobs: Job1: Host1 /atlas ...
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The AliEn framework has been developed as the ALICE user entry point into the ... AliEn services (Cluster Monitor, CE, SES, MonALISA, PackMan, xrootd) ...
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Low Latency Access to data via xrootd servers. Protocol includes ... A Quick Recapitulation. The system is highly structured. Server xrootd's provide the data ...
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The Multi-layer Condor System. Production Queue ... 4. Condor sends the job to the node where the input file stored. ... Use Condor/MySQL/PROOF/Xrootd ...
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The data files on the GRID are accessed using ROOT (AliEn) UI (via xrootd) ... AliEn, together with ROOT/PROOF, are solid foundations to build the final system ...
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Fixing MC (enti rement effectu au ccin2p3) ... 8% du CPU utilis par D0. Xrootd ... Attention au d marrage de LHC qui risque de nous priver de ressources. ...
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Ulrich Schwickerath, Andreas Heiss InfiniBand, Desy Zeuthen, 26th Mai 2005. A. Heiss, U. Schwickerath. InfiniBand ... HTC applications. rfio. xrootd ...
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Title: UTFSM computer cluster ( 4 years experience ) (100100_2 years experience ) Author: Yury Ivanov Last modified by: Yury Ivanov Created Date
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Can Scalla create a file system experience? The answer is ... Rapid file creation (e.g., tar) is limited. FUSE must be administratively installed to be used ...
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POSIX-style byte-level random access. By default, arbitrary data organized as files ... High efficiency data server (low CPU/byte overhead, small memory footprint) ...
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Performance appears similar to NFS V3. Let's explore multiple ... Top Performers Table. Per User Views. ANL Tier3(g,w) Meeting 19-May-09. 19. User Information ...
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Title: Data Mining on the Information Power Grid Author: Thomas H. Hinke Created Date: 7/9/2000 10:23:57 PM Document presentation format: Letter Paper (8.5x11 in)
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... System Issues: PCI-X Bus, Linux Kernel, NIC Drivers, CPU. Internet 2 Land Speed ... Linux kernel for TCP-based protocols, ... 7 full kernel-build cycles ...
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CCD. Finger lakes Instrumentation: www.fli-cam.com. Camera Model: MaxCam CM7 ... ROOT classes to run camera, analyze data - write out FITS, PNG (trivial, not ...
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ATLAS WT2 UF 6-Apr-09. Why Not Just Use NFS? NFS V2 & V3 inadequate ... ATLAS WT2 UF 6-Apr-09. File Discovery Considerations I ...
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Designing High Performance Data Access Systems ... Need extremely large number for statistical significance ... Limits direct inter-chatter to 64 entities ...
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Use LCG to produce significant numbers of MC events. Allow uses to run real analysis transparently on Grid Resources. Problems. Software ...
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Fungible. Default. 10-November-08. Builtin Authorization Privileges ... Fungible user entry. Specific user entry. Entry for originating host ...
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Date: Mon, 4 Apr 2005 12:58:37 0100 (BST) From: Jenny Williams jenny@hep.man.ac.uk ... May 2005 10:59:34 0100 (BST) From: jamwer James.Werner@manchester.ac. ...
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Electronic Documents Managment (EDMS) and CAD. LDAP (OpenLDAP) MCU. Win2000 ... Giga Ethernet (1 Gb full duplex) -- to disk servers and Objectivity/DB servers ...
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ZOO. RD44. RD45. LHC FNAL & RHIC. go ROOT. BaBar. go ... full power of OpenGL (lights, transparency, interactivity, anti-aliasing, hardware acceleration ...
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Title: LCG Deployment Overview Author: Ian Bird Last modified by: Maarten Litmaath Created Date: 11/10/2003 7:19:47 PM Document presentation format
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Roger Barlow for Fergus Wilson. GridPP 13. 5th July 2005, Durham. 5th July 2005, Durham ... Fergus Wilson. 4. BaBar Computing Model Monte Carlo ...
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Status of the Adoption of a SAML-XACML Profile for Authorization Interoperability across Grid Middleware Overview OSG & EGI Authorization Models
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Scheduled batch analysis using GRID (Event Summary Data and Analysis ... Also PDC data need to be transferred for prototyping and testing of analysis code. ...
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Dave Bailey, Chris Brew, Giuliano Castelli, James Werner, Fergus Wilson and Will Roethel ... For brief instructions see http://www.hep.man.ac.uk/u/roger/easyroot.html ...
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GINData : SRM interop testing with SRMTester
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Use a dynamic set of proxies to cooperate with them. Network of JINI-LUSs Secure & Public ... automatically by a servlet / CGI script. No Lost Packages ...
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... on Use of IBRIX Fusion FS. CMS Decided to Implement IBRIX solution Why? ... IBRIX file systems via NFS in limited numbers but has been stable Refining admin ...
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Title: Maintenance Author: hristov Last modified by: hristov Created Date: 8/21/2004 10:51:29 AM Document presentation format: On-screen Show Company
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Hosting the VO-boxes (interface to site services) ... This model ... With more SEs, holding replicas of the data, the Grid will naturally become more stable ...
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900 disk servers, 28K disks, 5 PB. 108M files in name space, 13M copies on disk ... Service Manager on Duty rota was extended for 24/7 coverage of critical data ...
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Interactive Analysis environment of unified accelerator libraries ... Silkworm 3900. 32 port FC Switch. Infortrend. 5 x 6400 GByte SATA A16F-R1211-M2 JBOD ...
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... custom 'streamer' ... Custom version based on. how object is stored in file. Implements ... in particularly need enough custom Java classes to read the ...
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Global Lambdas and Grids for Particle Physics in the LHC Era
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WN type host experiment specific requirements. Outbound connectivity ... agent and central services in case WN do not have incoming/outgoing connectivity ...
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Object browser, view, property display (histograms, conditions, parameters, event structure, ... GUI (Qt and ROOT) Inter-task monitoring and control mechanism ...
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Andrei Moskalenko. Storage team, Centre de Calcul de l' IN2P3. ... Design-wise. scalable architecture (achieved by adding more storage and control elements) ...
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Dominique Boutigny, Rainer Mankel, Davide Salomoni, Junji Haba, Rik Yoshida ... SC1 - Nov04-Jan05 - data transfer between CERN and three Tier-1s (FNAL, NIKHEF, FZK) ...
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Silkworm 3900. 32 port FC Switch. Infortrend. 5 x 6400 GByte SATA A16F ... 2 Brocade Silkworm 3900. 32 port FC Switch ZONED (50TB Unit with 4 Diskservers) ...
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Kernel 2.4.20-20 (kernel du jour) Investigating RHEL 3.0. Solaris ... OpenAFS 1.2.10 on all client machines. No problems seen since going to OpenAFS ...
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New Network Topology with all links carried by G ANT and NRNs. Planned Investigations ... Setup the WAN emulator with the measured conditions ...
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Cache both clean and dirty file data and file attributes ... Dirty data are buffered on the client machine till file close or up to 30 seconds ...
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Title: Diapositiva 1 Author: Stefano Bagnasco Last modified by: Stefano Bagnasco Created Date: 2/8/2006 8:29:17 AM Document presentation format: Personalizzato
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ND. Contributing 30% of throughput to ATLAS and CMS in Worldwide LHC Computing Grid ... Service availability monitoring and forwarding of results to WLCG ...
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Because of inertia or time to develop, ... The Language Reflexion System ... that can be migrated smoothly to the reflexion system to be introduced in C in ...
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