| 1 | <html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>vfs_shadow_copy</title><link rel="stylesheet" href="../samba.css" type="text/css"><meta name="generator" content="DocBook XSL Stylesheets V1.74.0"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="refentry" lang="en"><a name="vfs_shadow_copy.8"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>vfs_shadow_copy — Make a Samba share read only for a specified time period</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><div class="cmdsynopsis"><p><code class="literal">vfs objects = shadow_copy</code></p></div></div><div class="refsect1" lang="en"><a name="id2522930"></a><h2>DESCRIPTION</h2><p>This VFS module is part of the
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| 2 | <a class="citerefentry" href="samba.7.html"><span class="citerefentry"><span class="refentrytitle">samba</span>(7)</span></a> suite.</p><p>The <code class="literal">vfs_shadow_copy</code> VFS module functionality
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| 3 | that is similar to Microsoft Shadow Copy services. When setup properly,
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| 4 | this module allows Microsoft Shadow Copy clients to browse
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| 5 | "shadow copies" on Samba shares.
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| 6 | </p><p>This module is stackable.</p></div><div class="refsect1" lang="en"><a name="id2522964"></a><h2>CONFIGURATION</h2><p><code class="literal">vfs_shadow_copy</code> relies on a filesystem
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| 7 | snapshot implementation. Many common filesystems have native
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| 8 | support for this.
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| 9 | </p><p>Filesystem snapshots must be mounted on
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| 10 | specially named directories in order to be recognized by
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| 11 | <code class="literal">vfs_shadow_copy</code>. The snapshot mount points must
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| 12 | be immediate children of a the directory being shared.</p><p>The snapshot naming convention is @GMT-YYYY.MM.DD-hh.mm.ss,
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| 13 | where:
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| 14 | </p><div class="itemizedlist"><ul type="disc"><li><p><code class="literal">YYYY</code> is the 4 digit year</p></li><li><p><code class="literal">MM</code> is the 2 digit month</p></li><li><p><code class="literal">DD</code> is the 2 digit day</p></li><li><p><code class="literal">hh</code> is the 2 digit hour</p></li><li><p><code class="literal">mm</code> is the 2 digit minute</p></li><li><p><code class="literal">ss</code> is the 2 digit second.</p></li></ul></div><p>
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| 15 | </p><p>The <code class="literal">vfs_shadow_copy</code> snapshot naming convention can be produced with the following
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| 16 | <a class="citerefentry" href="date.1.html"><span class="citerefentry"><span class="refentrytitle">date</span>(1)</span></a> command:
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| 17 | </p><pre class="programlisting">
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| 18 | TZ=GMT date +@GMT-%Y.%m.%d-%H.%M.%S
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| 19 | </pre></div><div class="refsect1" lang="en"><a name="id2483562"></a><h2>EXAMPLES</h2><p>Add shadow copy support to user home directories:</p><pre class="programlisting">
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| 20 | <em class="parameter"><code>[homes]</code></em>
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| 21 | <a class="link" href="smb.conf.5.html#VFSOBJECTS" target="_top">vfs objects = shadow_copy</a>
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| 22 | </pre></div><div class="refsect1" lang="en"><a name="id2483697"></a><h2>CAVEATS</h2><p>This is not a backup, archival, or version control solution.
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| 23 | </p><p>With Samba or Windows servers,
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| 24 | <code class="literal">vfs_shadow_copy</code> is designed to be an end-user
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| 25 | tool only. It does not replace or enhance your backup and
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| 26 | archival solutions and should in no way be considered as
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| 27 | such. Additionally, if you need version control, implement a
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| 28 | version control system.</p></div><div class="refsect1" lang="en"><a name="id2483721"></a><h2>VERSION</h2><p>This man page is correct for version 3.0.25 of the Samba suite.
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| 29 | </p></div><div class="refsect1" lang="en"><a name="id2483732"></a><h2>AUTHOR</h2><p>The original Samba software and related utilities
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| 30 | were created by Andrew Tridgell. Samba is now developed
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| 31 | by the Samba Team as an Open Source project similar
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| 32 | to the way the Linux kernel is developed.</p></div></div></body></html>
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