<samba:parameter name="strict sync"
context="S"
xmlns:samba="http://samba.org/common">
<listitem>
<para>Many Windows applications (including the Windows 98 explorer
shell) seem to confuse flushing buffer contents to disk with doing
a sync to disk. Under UNIX, a sync call forces the process to be
suspended until the kernel has ensured that all outstanding data in
kernel disk buffers has been safely stored onto stable storage.
This is very slow and should only be done rarely. Setting this
parameter to <constant>no</constant> (the default) means that
<citerefentry><refentrytitle>smbd</refentrytitle>
<manvolnum>8</manvolnum></citerefentry> ignores the Windows
applications requests for a sync call. There is only a possibility
of losing data if the operating system itself that Samba is running
on crashes, so there is little danger in this default setting. In
addition, this fixes many performance problems that people have
reported with the new Windows98 explorer shell file copies.</para>
<para>See also the <link linkend="SYNCALWAYS"><parameter moreinfo="none">sync
always</parameter></link> parameter.</para>
<para>Default: <command moreinfo="none">strict sync = no</command></para>
</listitem>
</samba:parameter>