Dell PowerVault 720N, Command Reference Manual, Page: 185 / 606

NFS Administration 6-3
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If the filer has multiple volumes, you must export each volume separately; you cannot
export all volumes by specifying
/vol
as the exported directory.
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The following lines show how to export the volumes on a filer that has three volumes:
/vol/vol0 -root=filer, -access=mixer:blender
/vol/users -root=filer, -access=mixer:blender
/vol/builds -root=filer, -access=mixer:blender
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The following line shows an invalid entry for the
/etc/exports
directory for a filer that
has three volumes; /vol cannot be used by itself as a path:
/vol -root=filer, -access=blender:mixer
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To export directories to hosts, the filer must be able to resolve host names into IP
addresses. Host name resolution can take place
‡
through DNS name resolution
‡
by using the
/etc/hosts
file on the filer root volume
Refer to “Host Name Resolution” in Chapter 4 for more information about
host-name-to-IP-address resolution.
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Neither the filer nor NFS provide a way to specify hosts that
cannot
mount the filer. To
restrict access to exports, you must export volumes and directories in a manner that
specifically includes those hosts that should be allowed to mount them. Exclusion
occurs when a host is not specifically included in the list of hosts authorized to mount
exported volumes and directories.
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The filer permits directories that have exported ancestors to be exported. In many
implementations of the UNIX operating system, you cannot export a directory that
has an exported ancestor in the same file system.