6-8 Dell PowerVault 720N, 740N, and 760N System Administrator and Command Reference Guide
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To cancel all exports, enter the following command:
exportfs -au
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When you make changes to the /etc/exports file, take one of the following actions to
make the changes take effect:
Run the exportfs -a command.
Or
Reboot the filer.
If you delete entries from the /etc/exports file when you make changes, take one of
the following actions to activate the changes and ensure that deleted exports are
deactivated:
Run the following commands:
exportfs -au
exportfs -a

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-a Exports all the entries listed in the /etc/exports file.
-u Unexports all the entries listed in the /etc/exports file.
NOTE: When you use the -u option with the -a option, all exports
are unexported regardless of whether they were created from the
/etc/exports file or with the -o option.
-i Exports all the export entries listed in the /etc/exports file, but
ignores the options specified for the entries.
-v Prints each path name as it is exported or unexported.
-o Specifies the options for a volume or directory that you include in
the command line.
Example: To export the /vol/vol/home/terry directory to the host
mixer with read/write access, you enter the following
command:
exportfs -o -rw=mixer /vol/vol0/home/terry
NOTE: Volumes and directories that are exported directly rather
than through the /etc/exports file remain exported until canceled
using the -au option or until the filer is rebooted.