Hello Within perl, using the XrdClientAdmin perl lib, the stat of a file is obtained with: my ($id,$modtime,$sizeXrd,$flags) = XrdClientAdmin::XrdStat($testFile); print "stat: id= $id mtime= $modtime size= $sizeXrd flags= $flags $testFile\n"; The output is: stat: id= 1 mtime= 2147483647 size= 80871 flags= 0 /prod/WRTest/testOut2/B0DKNeut.01.root The mtime is 2147483647, which is not only far in the future, but I get this number for every file that is stat'ed. 2147483647 corresponds to 0x7fffffff in HEX. In the xrootd protocol documentation (3.22 kXR_stat Request) it says that the stat command returns for each file: info: id size flags modtime\0 but the perl stat command returns: id mtime size flags Does the perl command changes the order? Is the xrootd documentation correct? Cheers, Wilko