https://wiki.openvz.org/index.php?action=history&feed=atom&title=Man%2Fvzfsync.8 Man/vzfsync.8 - Revision history 2026-04-11T07:21:26Z Revision history for this page on the wiki MediaWiki 1.31.1 https://wiki.openvz.org/index.php?title=Man/vzfsync.8&diff=15218&oldid=prev Botinki Kira: Automated import of articles 2014-04-04T05:32:55Z <p>Automated import of articles</p> <p><b>New page</b></p><div>== NAME ==<br /> <br /> &lt;p style=&quot;margin-left:11%; margin-top: 1em&quot;&gt;vzfsync &amp;minus;<br /> perform fsync/fdatasync/fadvise on files&lt;/p&gt;<br /> <br /> == SYNOPSIS ==<br /> <br /> &lt;table width=&quot;100%&quot; border=&quot;0&quot; rules=&quot;none&quot; frame=&quot;void&quot;<br /> cellspacing=&quot;0&quot; cellpadding=&quot;0&quot;&gt;<br /> &lt;tr valign=&quot;top&quot; align=&quot;left&quot;&gt;<br /> &lt;td width=&quot;11%&quot;&gt;&lt;/td&gt;<br /> &lt;td width=&quot;11%&quot;&gt;<br /> <br /> &lt;p style=&quot;margin-top: 1em&quot;&gt;&lt;b&gt;vzfsync&lt;/b&gt;&lt;/p&gt;&lt;/td&gt;<br /> &lt;td width=&quot;1%&quot;&gt;&lt;/td&gt;<br /> &lt;td width=&quot;77%&quot;&gt;<br /> <br /> &lt;p style=&quot;margin-top: 1em&quot;&gt;{ &lt;b&gt;-s&lt;/b&gt;,&lt;b&gt;--sync&lt;/b&gt; |<br /> &lt;b&gt;-d&lt;/b&gt;,&lt;b&gt;--datasync&lt;/b&gt; } [&lt;b&gt;-n&lt;/b&gt;,&lt;b&gt;--dontneed&lt;/b&gt;]<br /> &lt;b&gt;file&lt;/b&gt; [&lt;b&gt;file&amp;nbsp;&lt;/b&gt;&lt;i&gt;...&lt;/i&gt;]&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt;<br /> &lt;tr valign=&quot;top&quot; align=&quot;left&quot;&gt;<br /> &lt;td width=&quot;11%&quot;&gt;&lt;/td&gt;<br /> &lt;td width=&quot;11%&quot;&gt;<br /> <br /> &lt;p style=&quot;margin-top: 1em&quot;&gt;&lt;b&gt;vzfsync&lt;/b&gt;&lt;/p&gt;&lt;/td&gt;<br /> &lt;td width=&quot;1%&quot;&gt;&lt;/td&gt;<br /> &lt;td width=&quot;77%&quot;&gt;<br /> <br /> &lt;p style=&quot;margin-top: 1em&quot;&gt;&lt;b&gt;--help&lt;/b&gt;&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt;<br /> &lt;/table&gt;<br /> <br /> == DESCRIPTION ==<br /> <br /> &lt;p style=&quot;margin-left:11%; margin-top: 1em&quot;&gt;This utility<br /> performs &lt;b&gt;fsync&lt;/b&gt;(2) or &lt;b&gt;fdatasync(2)&lt;/b&gt; for every<br /> supplied file name. It can also optionally perform<br /> &lt;b&gt;posix_fadvise&lt;/b&gt;(2) with the argument of<br /> &lt;b&gt;POSIX_FADV_DONTNEED&lt;/b&gt;.&lt;/p&gt;<br /> <br /> &lt;p style=&quot;margin-left:11%; margin-top: 1em&quot;&gt;It is used from<br /> within [[Man/vzmigrate.8|&lt;b&gt;vzmigrate&lt;/b&gt;(8)]] utility for live migration, right<br /> after copying ploop delta files (and before suspending a<br /> container) to sync those copied files to disk in order to<br /> optimize subsequent ploop mount time and, utlimately,<br /> container frozen time.&lt;/p&gt;<br /> <br /> == OPTIONS ==<br /> <br /> &lt;p style=&quot;margin-left:11%; margin-top: 1em&quot;&gt;&lt;b&gt;-s&lt;/b&gt;,&lt;b&gt;--sync&lt;/b&gt;&lt;/p&gt;<br /> <br /> &lt;p style=&quot;margin-left:22%;&quot;&gt;Perform fsync.&lt;/p&gt;<br /> <br /> &lt;p style=&quot;margin-left:11%;&quot;&gt;&lt;b&gt;-d&lt;/b&gt;,&lt;b&gt;--datasync&lt;/b&gt;&lt;/p&gt;<br /> <br /> &lt;p style=&quot;margin-left:22%;&quot;&gt;Perform fdatasync.&lt;/p&gt;<br /> <br /> &lt;p style=&quot;margin-left:11%;&quot;&gt;&lt;b&gt;-n&lt;/b&gt;,&lt;b&gt;--dontneed&lt;/b&gt;&lt;/p&gt;<br /> <br /> &lt;p style=&quot;margin-left:22%;&quot;&gt;Perform<br /> posix_fadvise(POSIX_FADV_DONTNEED).&lt;/p&gt;<br /> <br /> == EXIT STATUS ==<br /> <br /> &lt;p style=&quot;margin-left:11%; margin-top: 1em&quot;&gt;Returns 0 upon<br /> success, or an appropriate error code in case of an<br /> error:&lt;/p&gt;<br /> <br /> &lt;table width=&quot;100%&quot; border=&quot;0&quot; rules=&quot;none&quot; frame=&quot;void&quot;<br /> cellspacing=&quot;0&quot; cellpadding=&quot;0&quot;&gt;<br /> &lt;tr valign=&quot;top&quot; align=&quot;left&quot;&gt;<br /> &lt;td width=&quot;11%&quot;&gt;&lt;/td&gt;<br /> &lt;td width=&quot;1%&quot;&gt;<br /> <br /> &lt;p&gt;1&lt;/p&gt;&lt;/td&gt;<br /> &lt;td width=&quot;10%&quot;&gt;&lt;/td&gt;<br /> &lt;td width=&quot;78%&quot;&gt;<br /> <br /> &lt;p&gt;Invalid usage&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt;<br /> &lt;tr valign=&quot;top&quot; align=&quot;left&quot;&gt;<br /> &lt;td width=&quot;11%&quot;&gt;&lt;/td&gt;<br /> &lt;td width=&quot;1%&quot;&gt;<br /> <br /> &lt;p&gt;2&lt;/p&gt;&lt;/td&gt;<br /> &lt;td width=&quot;10%&quot;&gt;&lt;/td&gt;<br /> &lt;td width=&quot;78%&quot;&gt;<br /> <br /> &lt;p&gt;Failed to perform some requested operations on one or<br /> many files.&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt;<br /> &lt;/table&gt;<br /> <br /> == SEE ALSO ==<br /> <br /> &lt;p style=&quot;margin-left:11%; margin-top: 1em&quot;&gt;&lt;b&gt;fsync&lt;/b&gt;(2),<br /> &lt;b&gt;fdatasync&lt;/b&gt;(2), &lt;b&gt;posix_fadvise&lt;/b&gt;(2).&lt;/p&gt;<br /> <br /> == LICENSE ==<br /> <br /> &lt;p style=&quot;margin-left:11%; margin-top: 1em&quot;&gt;Copyright (C)<br /> 2014, Parallels, Inc. Licensed under GNU GPL v2.&lt;/p&gt;</div> Botinki Kira