On Thu, Oct 04, 2007 at 03:37:26PM -0500, Florin Isaila wrote: > are locks in Lustre implemented? The default flock behaviour is to return ENOSYS. You may mount with '-o flock' to get full cluster-wide flock support (incomplete) or use '-o localflock' (versions >= 1.4.10 and 1.6.1) for local node consistent locking only. Johann