svn commit: r42742 - head/en_US.ISO8859-1/htdocs/releases/9.2R

[Glen Barber]

Author: gjb
Date: Mon Sep 30 01:00:31 2013
New Revision: 42742
URL: http://svnweb.freebsd.org/changeset/doc/42742

Log:
  Document r251419.
  
  Sponsored by:	The FreeBSD Foundation

Modified:
  head/en_US.ISO8859-1/htdocs/releases/9.2R/relnotes.xml

Modified: head/en_US.ISO8859-1/htdocs/releases/9.2R/relnotes.xml
==============================================================================
--- head/en_US.ISO8859-1/htdocs/releases/9.2R/relnotes.xml	Mon Sep 30 00:42:48 2013	(r42741)
+++ head/en_US.ISO8859-1/htdocs/releases/9.2R/relnotes.xml	Mon Sep 30 01:00:31 2013	(r42742)
@@ -48,6 +48,25 @@
 
       <li><p>The ZFS filesystem now supports lz4 compression.
 	[<a href="&svn.rev;247309">r247309</a>]</p></li>
+
+      <li><p>The ZFS filesystem now supports TRIM when used on solid
+	  state drives.  ZFS TRIM support is enabled by default.  [<a
+	    href="&svn.rev;251419">r251419</a>]  The following
+	  tunables have been added:</p>
+	<ul>
+	  <li><p><code class="varname">vfs.zfs.trim.enabled</code>:
+	    Enable ZFS TRIM</p></li>
+
+	  <li><p><code class="varname">vfs.zfs.trim.max_interval</code>:
+	    Maximum interval in seconds between TRIM queue processing</p></li>
+
+	  <li><p><code class="varname">vfs.zfs.trim.timeout</code>:
+	    Delay TRIMs by up to this many seconds</p></li>
+
+	  <li><p><code class="varname">vfs.zfs.trim.txg_delay</code>:
+	    Delay TRIMs by up to this many TXGs</p></li>
+	</ul>
+      </li>
     </ul>