atalk-per-session-dids

This attribute determines AppleTalk directory ID persistence. If you set this attribute to off, the default, AppleTalk directory IDs persistently associate themselves with directories in the volume. If you set this attribute to on, each directory ID remains only for the duration of a single client session; subsequently, features that depend on persistent IDs, such as the Macintosh O/S alias facility, do not function across successive file service sessions.

The host system requires a modest amount of overhead to maintain and manage a permanent database of directory IDs. For some volumes, especially extremely large ones like those residing on "infinite" storage devices, this overhead becomes excessive.

Usage:

tnvolume -M -v volume
 	-a atalk-per-session-dids={on|off}