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-<samba:parameter xmlns:samba="http://samba.org/common">
- <term><anchor id="FAKEOPLOCKS"/>fake oplocks (S)</term>
- <listitem><para>Oplocks are the way that SMB clients get permission
- from a server to locally cache file operations. If a server grants
- an oplock (opportunistic lock) then the client is free to assume
- that it is the only one accessing the file and it will aggressively
- cache file data. With some oplock types the client may even cache
- file open/close operations. This can give enormous performance benefits.
- </para>
-
- <para>When you set <command moreinfo="none">fake oplocks = yes</command>, <ulink url="smbd.8.html"><command moreinfo="none">smbd(8)</command></ulink> will
- always grant oplock requests no matter how many clients are using
- the file.</para>
-
- <para>It is generally much better to use the real <link linkend="OPLOCKS"><parameter moreinfo="none">oplocks</parameter></link> support rather
- than this parameter.</para>
-
- <para>If you enable this option on all read-only shares or
- shares that you know will only be accessed from one client at a
- time such as physically read-only media like CDROMs, you will see
- a big performance improvement on many operations. If you enable
- this option on shares where multiple clients may be accessing the
- files read-write at the same time you can get data corruption. Use
- this option carefully!</para>
-
- <para>Default: <command moreinfo="none">fake oplocks = no</command></para></listitem>
- </samba:parameter>