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Hi Patrick, By default, xrootd is configured to create directories automatically (i.e., via the Posix interface anyway). This should cover gridftp. Xrdcp also creates directories automatically. So, generally, you need not create directories manually. In fact, unless you configure broadcast directory creation, it won't work the way you expect it in the traditional sense. Generally, you need not worry about it anyway. Andy ----- Original Message ----- From: "Patrick McGuigan" <[log in to unmask]> To: <[log in to unmask]> Sent: Wednesday, November 07, 2007 6:18 PM Subject: mkdir in xrootd > Another basic question, > > > I have a prototype system running with two dataservers, one redirector and > one client machine. The system operates on one name space (/xrd). > > I can use xrdcp to copy files from the client to the dataservers via the > redirector as expected: > > [client] $ xrdcp /tmp/testfile root://redirector//xrd/testfileNNNN > > > I also see the expected load balancing where the destination dataserver > alternates between invocations (when varying NNN). > > The next test is understanding how our production system can use the > namespace. The first issue will be creating subdirectories in the > namespace. I need a command line directory creation command (or script). > Is it possible to use xrd for this? I didn't see very much documentation > for this command. > I may also need to allow gridftp to create directories. Is this possible > by using a preload library? > > > Can I create a subdirectory via the redirector using the xrd command? This > fails on my system, but I can create a directory if I first connect to a > dataserver. > > Is it sane to create multiple instances of a subdirectory on multiple data > servers? Will this allow for load balancing? > > > Thanks for any help, > > Patrick > > > > > > >