Hi all, I've been playing with posix-locks. Setup is single server and client on the same host. Filesystem is xfs. I've used the simple testlock.pl provided earlier from Kevan Benson. Scenarios: With posix-locks loaded, but mandatory and advisory off With posix-locks loaded, but mandatory and advisory on Without loading posix-locks On another local disk, xfs filesystem I've started the script, (adjusted it to lock the file for 10 seconds) and started it once again before the first run is finished. Result is the same for all scenarios. Possible conclusion: On xfs I don't need to load posix-locks. Am I right? Thanks, -- Einar Gautun einar.gautun@xxxxxxxxxxx Statens kartverk | Norwegian Mapping Authority 3507 Hønefoss | NO-3507 Hønefoss, Norway Ph +47 32118372 Fax +47 32118101 Mob +47 92692662