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<H2 CLASS="western"><FONT FACE="Tahoma, sans-serif"><FONT SIZE=4 STYLE="font-size: 15pt">Expert
settings</FONT></FONT></H2>
<P STYLE="margin-bottom: 0cm"><FONT FACE="Tahoma, sans-serif">FreeFileSync
has a number of special purpose settings that can only be accessed
directly via the global configuration file "<FONT FACE="Courier New, monospace">GlobalSettings.xml</FONT>".
To locate this file enter "<FONT FACE="Courier New, monospace">%appdata%\FreeFileSync</FONT>"
in the Windows Explorer address bar or go to the FreeFileSync
installation folder if you are using the portable installation.</FONT></P>
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<P STYLE="margin-left: 1.32cm; margin-bottom: 0cm"><SPAN ID="Rahmen6" DIR="LTR" STYLE="float: left; width: 80%; height: 0.04cm; border: none; padding: 0cm; background: #e6e6e6">
<P ALIGN=LEFT STYLE="margin-left: 0.79cm; margin-bottom: 0cm"><FONT FACE="Courier New, monospace"><?xml
version="1.0" encoding="UTF-8"?><BR><FreeFileSync
XmlType="GLOBAL"><BR> <Shared><BR> <<B>FileTimeTolerance</B>
Seconds="2"/><BR> <<B>RunWithBackgroundPriority</B>
Enabled="false"/><BR> <<B>LockDirectoriesDuringSync</B>
Enabled="true"/><BR> <<B>VerifyCopiedFiles</B>
Enabled="false"/><BR> <<B>LastSyncsLogSizeMax</B>
Bytes="100000"/></FONT></P>
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<P STYLE="margin-bottom: 0cm"><FONT FACE="Tahoma, sans-serif"><B>FileTimeTolerance:</B></FONT><BR><FONT FACE="Tahoma, sans-serif">By
default file modification</FONT> <FONT FACE="Tahoma, sans-serif">times
are allowed to have a 2 second difference while still being
considered equal. This is required by FAT/FAT32 file systems which
store file times with a 2 second precision only.<BR>This setting
can also be used to simulate a "compare by file size",
ignoring last modification times: If tolerance is set to some high
value, e.g. 2000000000, then changed files will be detected as a
conflict (same date, different file size) and the
synchronization direction for conflicts can be set accordingly.</FONT></P>
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</P>
<P STYLE="margin-bottom: 0cm"><FONT FACE="Tahoma, sans-serif"><B>RunWithBackgroundPriority:</B></FONT><BR><FONT FACE="Tahoma, sans-serif">While
synchronization is running, other applications which are accessing the same
data locations may experience a noticeable slowdown. Enable this
setting to lower FreeFileSync's resource consumption at the cost of a
significantly slower synchronization speed.</FONT></P>
<P STYLE="margin-bottom: 0cm"><BR>
</P>
<P STYLE="margin-bottom: 0cm"><FONT FACE="Tahoma, sans-serif"><B>LockDirectoriesDuringSync:</B></FONT><BR><FONT FACE="Tahoma, sans-serif">In
order to avoid race conditions of multiple FreeFileSync instances
writing to the same folder at the same time, accesses are serialized
by lock files ("</FONT><FONT FACE="Courier New, monospace">sync.ffs_lock</FONT><FONT FACE="Tahoma, sans-serif">").
This allows to operate FreeFileSync with an arbitrary number of users
in a network out of the box.</FONT></P>
<P STYLE="margin-bottom: 0cm"><BR>
</P>
<P STYLE="margin-bottom: 0cm"><FONT FACE="Tahoma, sans-serif"><B>VerifyCopiedFiles:</B></FONT><BR><FONT FACE="Tahoma, sans-serif">If
active, FreeFileSync will binary-compare source and target files after
copying and report verification errors. Note that this may double
file copy times and is no guarantee that data has not already been
corrupted prior to copying and corruption is not hidden by
deceptively reading valid data from various buffers in the
application and hardware stack.</FONT><BR><A HREF="http://blogs.msdn.com/b/oldnewthing/archive/2012/09/19/10350645.aspx"><FONT FACE="Tahoma, sans-serif">Does
the CopyFile function verify that the data reached its final
destination successfully?</FONT></A></P>
<P STYLE="margin-bottom: 0cm"><BR>
</P>
<P STYLE="margin-bottom: 0cm"><FONT FACE="Tahoma, sans-serif"><B>LastSyncsLogSizeMax:<BR></B></FONT><FONT FACE="Tahoma, sans-serif">The
progress logs of the most recent synchronizations (for both GUI and
batch jobs) are collected automatically in the file "</FONT><FONT FACE="Courier New, monospace">LastSyncs.log</FONT><FONT FACE="Tahoma, sans-serif">".
The maximum size of this log file can be set here.</FONT></P>
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