summaryrefslogtreecommitdiffstats
path: root/docs-xml/smbdotconf/locking/fakeoplocks.xml
diff options
context:
space:
mode:
Diffstat (limited to 'docs-xml/smbdotconf/locking/fakeoplocks.xml')
-rw-r--r--docs-xml/smbdotconf/locking/fakeoplocks.xml30
1 files changed, 30 insertions, 0 deletions
diff --git a/docs-xml/smbdotconf/locking/fakeoplocks.xml b/docs-xml/smbdotconf/locking/fakeoplocks.xml
new file mode 100644
index 00000000000..fa004d7497a
--- /dev/null
+++ b/docs-xml/smbdotconf/locking/fakeoplocks.xml
@@ -0,0 +1,30 @@
+<samba:parameter name="fake oplocks"
+ type="boolean"
+ context="S"
+ xmlns:samba="http://www.samba.org/samba/DTD/samba-doc">
+<description>
+ <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>, <citerefentry>
+ <refentrytitle>smbd</refentrytitle><manvolnum>8</manvolnum></citerefentry> 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 <smbconfoption name="oplocks"/> 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>
+</description>
+<value type="default">no</value>
+</samba:parameter>