A fully multithreaded version of automountd was included in the Solaris 2.6 release. This enhancement makes autofs more reliable and enables concurrent servicing of multiple mounts, which prevents the service from hanging if a server is unavailable.
The new automountd also provides better on-demand mounting. Previous releases would mount an entire set of file systems if the file systems were hierarchically related. Now, only the top file system is mounted. Other file systems that are related to this mount point are mounted when needed.
The autofs service supports browsability of indirect maps. This support enables a user to see which directories could be mounted, without having to actually mount each file system. A -nobrowse option has been added to the autofs maps so that large file systems, such as /net and /home, are not automatically browsable. Also, you can turn off autofs browsability on each client by using the -n option with automount. See Disabling Autofs Browsability for more information.