Hi, I've been running some more tests of the staging at RAL and have run into a problem somewhere in the mps_Stage/PreStage/prep system. Everything work fine staging file that was on the system and has been deleted but if I try to stage in a file that was one a different server, hence the directory structure for the file does not exist on the staging server it fails and I see the following error in the PreStage log file: 12:45:43 [ 10859] mps_Stage: Open '/stage/bdata-data50/kanga//store/SPskims/R12/16.0.2e/BtoKKKL/001005/200 002/DIR_LOCK' r/w failed; No such file or directory. 12:45:43 [ 10859] do_stagein: xfr failed for /store/SPskims/R12/16.0.2e/BtoKKKL/001005/200002/BtoKKKL_001005_3247.01. root, rc=4, retry=1 12:45:45 [ 3255] file=/store/SPskims/R12/16.0.2e/BtoKKKL/001005/200002/BtoKKKL_0010053247 .01.root, rc=1024, reqid=ef000001:1cd2.425d27e1 :3762 If I create the directories and the DIR_LOCK file before running the import, everything works. The config file I'm using on the server is below. Is there some setting I'm missing which is needed to create the directories/DIR_LOCK file or does the code need fixing? Thanks, Chris -- Chris Brew ([log in to unmask]) +44 1235 446326 Particle Physics Department Rutherford Appleton Laboratory Chilton, Didcot. Oxfordshire. OX11 0QX. United Kingdom.