Setup a grid UI and proxy:
source /cvmfs/grid.cern.ch/umd-sl6ui-test/etc/profile.d/setup-ui-example.sh
voms-proxy-init --voms gridpp

Upload a file:
xrdcp some_local_file.txt root://srm.glite.ecdf.ed.ac.uk//dpm/ecdf.ed.ac.uk/home/gridpp/gridpp/user/daniela.bauer/some_file_name.txt

Download a file:
xrdcp root://srm.glite.ecdf.ed.ac.uk//dpm/ecdf.ed.ac.uk/home/gridpp/gridpp/user/daniela.bauer/some_file_name.txt some_local_file.txt

Connect to a node: xrd srm.glite.ecdf.ed.ac.uk
('ls') to list files.

Enable debug: -d3

XRootD admin
Our xrootd servers are: xrootd01 and xrootd02. To restart xrootd use:
service xrootd@uk restart; service cmsd@uk restart
On gfe02: service xrootd@gfe02 restart; service cmsd@gfe02 restart