Philip,
> I don't believe Apache/mod_dav_svn uses TMPDIR when processing a PUT. > I can prove that either Apache or ModDavSvn (or the OS) uses TMPDIR during a PUT of a very large resource. Test 1: leave 3GB free on system drive, try to PUT 15GB file thru DAV into it's ultimate destination on a driver with 3TB of space. And observe an error (as I did before) Test 2: as #1 but with a TMPDIR export in /etc/apache2/envvars. No error during the PUT will be the observation. * this is me retracing steps * - Paul