Abstract

dCache is a well established distributed storage solution used in both high energy physics computing and other disciplines. An overview of the implementation of the xrootd data access protocol within dCache is presented. The performance of various access mechanisms is studied and compared and it is concluded that our implementation is as perfomant as other protocols. This makes dCache a compelling alternative to the Scalla software suite implementation of xrootd, with added value from broad protocol support, including the IETF approved NFS 4.1 protocol.

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