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FAX Deployment Status and Performance Updates

This document provides an overview of the current status of the FAX deployment and ongoing collaborations with T1 sites, including updates on dCache usage and the transition to xrootd doors. The team is conducting stress tests and FTS transfers with no current updates available. Preliminary results indicate a high load capacity with 50K–100K input files daily and a low failure rate of 0.5-1%. Additionally, there are significant issues with files in non-RUCIO paths at some US sites and updates on dCache versions and command renaming.

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FAX Deployment Status and Performance Updates

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  1. FAX Deployment Status • Working with several T1s to deploy FAX service • PIC will rejoin FAX, has to stay at dCache 2.2, but want to use dCachexrootd door directly (instead of using a proxy) • Working with IN2P3-CC and TRIUMF, no update yet • Stress tests • Repeat FTS transfers using FAX, no update yet • Stress FAX using US Cloud analysis jobs • Ask US global redirection to find all input files from all US cloud analysis jobs (no update from Ilija yet) • Preliminary results from 21,22,23 of March: • 50K – 100K input files daily, FAX can easily handle this load • Daily failure rates are between 0.5-1%. • Surprise (?) finding: some US sites still have significant number of files in non-RUCIO path. • Other updates • dCache (2.6) Xrootd door is not SHA2 ready • In V16 of localSetupFAX, renamed all commands from “FAX-*” to “fax-*” FAX status - Wei, 2014-03-24

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