Fermi National Accelerator Laboratory 3 Fermi National Accelerator Laboratory Mission Advances the understanding of the fundamental nature of matter.

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Presentation transcript:

Fermi National Accelerator Laboratory 3 Fermi National Accelerator Laboratory Mission Advances the understanding of the fundamental nature of matter and energy by providing leadership and resources for qualified researchers to conduct basic research at the frontiers of high energy physics and related disciplines

70 Gbps (peak: 75)

File 1 - Data Flow Starts File 2 – Data Flow Starts STOR RETR Transfer Complete One RTT Delay between successive file transfers Client Source Server Destination Server Transfer Complete GO control channel sent to the VPN through port forwarding

Data set Small - 8KB to 4MB Medium - 8MB to 1GB Large - 2GB to 8GB Third party Server to Server transfers: src at NERSC / dest at ANL Dataset split into 3 size sets Large files transfer performance ~ 92Gbps

protocol A file access and data transfer protocol Defines POSIX-style byte-level random access for Arbitrary any Arbitrary data organized as files of any type Identified by a hierarchical directory-like name It is not a POSIX file system – it does not provide full POSIX file system semantics FUSE xrootdFS There is a FUSE implementation called xrootdFS xrootdclient An xrootd client simulating a mountable file system It is not an Storage Resource Manager (SRM) BeStMan Provides SRM functionality via BeStMan

Dashed lines indicate scaled performance based on measurement using 10Gb/s connection Dataset (GB)1 NIC measureme nts (Gb/s) Aggregate Measureme nts (12 NIC) (Gb/s) Scale Factor per NIC Aggregate estimate (12 NIC) (Gb/s) (8 clients) (4 clients)