Follow-up Comment #3, sr #136498 (project xrootd): Can't see why this would have anything to do with federation - works for non-Castor sites. This part caught my eye: "Unable to reqid/pfn2 is missing dummy" I was guessing maybe the client dropped some argument the Castor disk server expected? Andrew, can you try an "xrdcp" of that file with, including "?tried=gfe02.grid.hep.ph.ic.ac.uk", and add "-d 2" for extra debugging? It should allow us to see what opaque info is given. Brian _______________________________________________________ Reply to this item at: <http://savannah.cern.ch/support/?136498> _______________________________________________ Message sent via/by LCG Savannah http://savannah.cern.ch/ ######################################################################## Use REPLY-ALL to reply to list To unsubscribe from the XROOTD-DEV list, click the following link: https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=XROOTD-DEV&A=1