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[Samba.git] / docs-xml / manpages / vfs_btrfs.8.xml
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1 <?xml version="1.0" encoding="iso-8859-1"?>
2 <!DOCTYPE refentry PUBLIC "-//Samba-Team//DTD DocBook V4.2-Based Variant V1.0//EN" "http://www.samba.org/samba/DTD/samba-doc">
3 <refentry id="vfs_btrfs.8">
5 <refmeta>
6         <refentrytitle>vfs_btrfs</refentrytitle>
7         <manvolnum>8</manvolnum>
8         <refmiscinfo class="source">Samba</refmiscinfo>
9         <refmiscinfo class="manual">System Administration tools</refmiscinfo>
10         <refmiscinfo class="version">4.0</refmiscinfo>
11 </refmeta>
14 <refnamediv>
15         <refname>vfs_btrfs</refname>
16         <refpurpose>
17                 Utilize features provided by the Btrfs filesystem
18         </refpurpose>
19 </refnamediv>
21 <refsynopsisdiv>
22         <cmdsynopsis>
23                 <command>vfs objects = btrfs</command>
24         </cmdsynopsis>
25 </refsynopsisdiv>
27 <refsect1>
28         <title>DESCRIPTION</title>
30         <para>This VFS module is part of the
31         <citerefentry><refentrytitle>samba</refentrytitle>
32         <manvolnum>8</manvolnum></citerefentry> suite.</para>
34         <para>
35                 The <command>vfs_btrfs</command> VFS module exposes Btrfs
36                 specific features for use by Samba.
37         </para>
39         <para>
40                 Btrfs allows for multiple files to share the same on-disk data
41                 through the use cloned ranges. When an SMB client issues a
42                 request to copy duplicate data (via FSCTL_SRV_COPYCHUNK), this
43                 module maps the request to a Btrfs clone range IOCTL, instead
44                 of performing reads and writes required by a traditional copy.
45                 Doing so saves storage capacity and greatly reduces disk IO.
46         </para>
48         <para>
49                 This module is stackable.
50         </para>
51 </refsect1>
53 <refsect1>
54         <title>CONFIGURATION</title>
56         <para>
57                 <command>vfs_btrfs</command> requires that the underlying share
58                 path is a Btrfs filesystem.
59         </para>
61         <programlisting>
62                 <smbconfsection name="[share]"/>
63                 <smbconfoption name="vfs objects">btrfs</smbconfoption>
64         </programlisting>
65 </refsect1>
67 <refsect1>
68         <title>VERSION</title>
70         <para>
71                 This man page is correct for version 4.1.0 of the Samba suite.
72         </para>
73 </refsect1>
75 <refsect1>
76         <title>AUTHOR</title>
78         <para>The original Samba software and related utilities
79         were created by Andrew Tridgell. Samba is now developed
80         by the Samba Team as an Open Source project similar
81         to the way the Linux kernel is developed.</para>
83 </refsect1>
85 </refentry>