Hi, thanks for all the feedback, but since I was away last week I was only able to do another test today. I'm getting some unexpected behavior: I set up the system (config files are below) taking suggestions from your example setups. 1. I try to write a new file NEWFILE via the redirector => fails $> xrdcp fileA root://lxn5219:1094//tmp/xrootd/newfile Error accessing path/file for root://lxn5219:1094//tmp/xrootd/newfile 2. I try to write the same file NEWFILE to a leaf node => succeeds $> xrdcp fileA root://lxn5207:1094//tmp/xrootd/newfile 3. I try to overwrite NEWFILE with a smaller file via the redirector =>now it succeeds, but the resulting file is the old file, where the start has been overwritten by the new smaller file. $> xrdcp ../fileBshort root://lxn5219:1094//tmp/xrootd/newfile I'm using the new production version 20050328-0656 with xrdcp as a client. Reading files via the redirector is never a problem, but writing of new files still does not work for me. Thanks for any help, Derek These are the Config files: ============================================================== # # dataserver.cf # # xrootd xrootd.fslib /opt/xrootd/xrootd-20050328-0656/lib/arch/libXrdOfs.so xrootd.export /tmp/xrootd ofs.redirect target odc.manager lxn5219 # olbd olb.port 3121 olb.path w /tmp/xrootd olb.subscribe lxn5219 3121 oss.nostage oss.nocheck oss.nodread oss.nomig oss.alloc * * 80 oss.fdlimit * max oss.path /tmp/xrootd ================================================================ # # redirector.cf # # xrootd xrootd.fslib /opt/xrootd/xrootd-20050328-0656/lib/arch/libXrdOfs.so xrootd.export /tmp/xrootd odc.manager lxn5219 3121 #odc.trace redirect odc.trace all debug ofs.trace all debug ofs.redirect remote # olbd olb.port 3121 olb.path w /tmp/xrootd olb.allow host lxn5219.cern.ch olb.allow host lxn5207.cern.ch olb.allow host lxb1557.cern.ch olb.trace all debug ===================================================================