NFS Services Administrator's Guide (5900-1632, August 2011)

• “Including a Map in Another Map” (page 72)
• “Creating a Hierarchy of AutoFS Maps” (page 72)
Automounting Multiple Directories (Multiple Mounts)
AutoFS enables you to automount multiple directories simultaneously.
Use an editor to create an entry with the following format in a direct or indirect map, and if needed,
create the auto_master entry:
local_dir /local_subdirectory
[-options] \ server:remote_directory \
/local_subdirectory [-options]
server:remote_directory \
...
Adding these map entries does not automatically mount them. The listed remote directories are
mounted only when referenced. For example, the following entry from a direct map mounts the
source code and the data files for a project whenever anyone requests access to both of them:
/our_project /source -ro basil:/opt/proj1/src \
/datafiles thyme:/opt/proj1/samples/data
The following is another example from an indirect map.
chap2 -nosuid /text thyme:/our_book/chap2 \
/graphics basil:/our_book/artwork/chap2 \
/old thyme:/our_book/oldfiles/chap2
The nosuid mount option applies to all three automounted directories. For more information on
the nosuid mount option, see automount(1M).
Configuring Replicated Servers for an AutoFS Directory
This section describes how to configure multiple replicated servers for an AutoFS directory.
Modify the entry that mounts the remote directory to list multiple servers in the appropriate map,
as follows:
• If the remote directories have the same name on every server, use a syntax such as the following
from an indirect map:
man -ro broccoli,cabbage,cauliflower:/usr/share/man
• You can assign a weighting factor to the servers by specifying a number in parentheses after
each server name. If the server has a lower weighting number specified, it is likely to be
selected. Servers that have no weight factor specified have a default weight of zero and are
most likely to be selected.
man -ro broccoli(1),cabbage(2),cauliflower(3):/usr/share/man
However, server proximity is more important than the weighting factor you assign. A server
on the same network segment as the client is more likely to be selected, than a server on
another network segment, regardless of the weight you assign. The weighting factor is taken
into account only when deciding between servers with the same network proximity.
• If the remote directory has a different name on different servers, use a syntax such as the
following from a direct map:
/nfs/proj2/schedule -ro \
broccoli:/export/proj2/schedule, \
cauliflower:/proj2/FY07/schedule
70 Configuring and Administering AutoFS