Hi Andy, copying files with xrdcp I got this error from the kan cluster: 051012 09:04:16 14869 Xrd: ReadBuffer: Server [kan007.slac.stanford.edu:1094] did not return OK message for last request. 051012 09:04:16 14869 Xrd: SendGenCommand: Server declared error 3008:XrdXrootdAio: Unable to read /store/PRskims/R14/14.4.2a/BToDlnu/04/BToDlnu_0416.03HUBCA.root; No buffer space available To me it sounds ugly. It happened approaching the end of this copy. What do you think? Fabrizio