The Samba v2.0.4b doc says: share modes (S) These open modes are not directly supported by UNIX, so they are simulated using shared memory, or lock files if your UNIX doesn't support shared mem- ory (almost all do). Yet I have these files on my (RedHat v6.0 / kernel v2.2.10) system: # ls -l /var/lock/samba total 12 -rw-r--r-- 1 root root 1048576 Jul 8 14:51 SHARE_MEM_FILE -rw-r--r-- 1 root root 12 Jul 8 14:53 SHARE_MEM_FILE.processes -rw-r--r-- 1 root root 4000 Jul 8 14:57 STATUS..LCK -rw-r--r-- 1 root root 231 Jul 8 16:49 browse.dat -rw-r--r-- 1 root root 20 Jul 6 18:41 nmbd.pid -rw-r--r-- 1 root root 20 Jul 6 18:41 smbd.pid Note that file SHARE_MEM_FILE is 1MB in size, the same as the default size ("shared mem size") as the shared memory. Does this mean that Samba is *not* using my system's RAM for tracking file use? And if not, why not? Thank you. *** Steve Snyder ***