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Xrootd and WebDAV deployment

ATLAS 2012 Jamboree. Xrootd and WebDAV deployment . Simone Campana CERN IT-ES. Xrootd. From 2013 ATLAS will utilize the xrootd protocol: For WAN data access (r/o) For LAN data access whenever proved to be more performing than the other available protocols (r/o)

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Xrootd and WebDAV deployment

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  1. ATLAS 2012 Jamboree Xrootd and WebDAV deployment Simone CampanaCERN IT-ES

  2. Xrootd • From 2013 ATLAS will utilize the xrootd protocol: • For WAN data access (r/o) • For LAN data access whenever proved to be more performing than the other available protocols (r/o) • As protocol for federating storages (r/o) • In 2013 ATLAS is/will be testing xrootd as • Protocol for LAN and WAN data transfer (e.g FTS and dq2-get/put) (rw) • Storage Management Protocol (replacing some SRM functionalities) (rw) • ATLAS demands sites to • Deploy the necessary components to allow production quality data access (also from WAN) to the storage through xrootd • Be prepared to join ATLAS FAX upon request Simone Campana – ATLAS Jamboree

  3. HTTP/WebDAV • From 2013 ATLAS will utilize HTTP/WebDAV • For LAN data access whenever proved to be more performing than the other available protocols (r/o) • For Storage Management operations for the Rucio migration (rw) • In 2013 ATLAS is/will be testing HTTP/WebDAV as: • Storage Management Protocol (replacing some SRM functionalities) (rw) • Protocol for LAN and WAN transfers (e.g. FTS and dq2-get/put) (rw) • ATLAS demands sites to • Deploy the necessary components to allow production quality data access (also from WAN) to the storage through HTTP/WebDAV Simone Campana – ATLAS Jamboree

  4. Remarks • Those requests are inline with the outcome of the Storage/Data Management WLCG TEGS • The request for support of xrootd is common between ATLAS and CMS • The request … • “Deploy the necessary components to allow production quality data access (also from WAN) to the storage through xrootd and HTTP/WebDAV” … should not be a lot of work • DPM and dCache support them natively • StoRM supports WebDAV and can easily support xrootd (at least in r/o mode) • The xrootd storage will support HTTP/WebDAV • Joining FAX requires some more involvement… • N2N plugin and Monitoring … but brings benefits (e.g. monitoring) • A list of ATLAS specific steps is needed (e.g. publication in AGIS) for both HTTP and xrootd. • So we ask the intervention of cloud support (i.e. cloud squads) Simone Campana – ATLAS Jamboree

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