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<h1 class="topictitle1">Unmount an integrated file system user-defined file system</h1>
<div><p><span>The unmount command makes the contents
of a user-defined file system (UDFS) inaccessible to the integrated file system
interfaces.</span></p>
<div class="section"><p>The objects in a UDFS will not be individually accessible once
the UDFS is unmounted. The <span class="cmdname">Remove Mounted File System (RMVMFS)</span> or <span class="cmdname">UNMOUNT</span> commands
will make a mounted file system inaccessible to the integrated file system
namespace. If any of the objects in the file system is in use
(for example, a file is opened) at the time of using the command, you will
receive an error message. The UDFS will remain mounted. If you have mounted
over any part of the UDFS, then this UDFS cannot be unmounted until it is
uncovered.</p>
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<div class="section"><p>For example, you mount a UDFS <samp class="codeph">/dev/qasp02/jenn.udfs</samp> over <samp class="codeph">/home/judy</samp> in
the integrated file system namespace. If you then mount another file system <samp class="codeph">/pubs</samp> over <samp class="codeph">/home/judy</samp>,
then the contents of <samp class="codeph">jenn.udfs</samp> will become inaccessible.
Furthermore, you cannot unmount <samp class="codeph">jenn.udfs</samp> until you unmount
the second file system from <samp class="codeph">/home/judy</samp>.</p>
</div>
<div class="section"> <div class="note"><span class="notetitle">Note:</span> A UDFS on an independent ASP cannot be mounted over.</div>
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzaaxudfsfs.htm" title="The user-defined file systems (UDFSs) reside on the auxiliary storage pool (ASP) or independent auxiliary storage pool (ASP) of your choice. You create and manage these file systems.">User-defined file systems (UDFSs)</a></div>
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<div class="relinfo"><strong>Related information</strong><br />
<div><a href="../cl/rmvmfs.htm">Remove Mounted File System (RMVMFS) command</a></div>
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