diff --git a/doc/user/configuration-reference.xml b/doc/user/configuration-reference.xml
index 9f60c14417348af43856e9414e3d78e56478df70..de9a2af1aeaadae9d200a395d94419c1edd7f2ee 100644
--- a/doc/user/configuration-reference.xml
+++ b/doc/user/configuration-reference.xml
@@ -547,6 +547,22 @@ tarantool_box: primary@sessions pri:33013 sec:33014 adm:33015</programlisting>
           recovery.</entry>
         </row>
 
+        <row>
+            <entry xml:id="wal_mode" xreflabel="wal_mode">wal_mode</entry>
+            <entry>string</entry>
+            <entry>"fsync_delay"</entry>
+            <entry>no</entry>
+            <entry>yes</entry>
+            <entry>Specify fiber-WAL-disk synchronization mode as:
+                <emphasis>write:</emphasis> fibers wait for their data to
+                be written to WAL (no fsync(2)); <emphasis>fsync</emphasis>:
+                fibers wait for their data, fsync(2) follows each write(2);
+                <emphasis>fsync_delay</emphasis>: fibers wait for their
+                data, fsync(2) is called every N=<emphasis>wal_fsync_delay</emphasis>
+                seconds (N=0.0 means no fsync(2) - equivalent to
+                <emphasis>wal_mode = "write"</emphasis>);</entry>
+        </row>
+
       </tbody>
     </tgroup>
   </table>
diff --git a/doc/user/persistence-architecture.xml b/doc/user/persistence-architecture.xml
index d9f51dd494146bf8f3d6bee15bb89c727ea4edc5..e1c3aa7377f6344f878e2442c301636ee8445e72 100644
--- a/doc/user/persistence-architecture.xml
+++ b/doc/user/persistence-architecture.xml
@@ -70,42 +70,11 @@ by disk load.
 </para>
 
 <para>
-WAL writer ensures data consistency and synchronization
-between requesting fibers, WAL writer and disk by
-employing one the following modes of operation (designated by
-<emphasis>wal_mode</emphasis> and
-<emphasis>wal_fsync_delay</emphasis> configuration keys):
-<orderedlist>
-    <listitem><para><emphasis>write</emphasis>: fibers wait for their
-    data to be written to the log (no fsync(2));</para></listitem>
-    <listitem><para><emphasis>fsync</emphasis>: fibers wait for their
-    data, fsync(2) follows each write(2);</para></listitem>
-    <listitem><para><emphasis>fsync_delay</emphasis>: fibers wait for their
-    data, fsync every N=<emphasis>wal_fsync_delay</emphasis>
-    seconds (N=0.0 means no fsync(2) - equivalent to
-    <emphasis>wal_mode = "write"</emphasis>);</para></listitem>
-</orderedlist>
+WAL writer employs a number of modes for synchronization between
+requesting fibers, WAL writer and disk hardware, as defined
+in configuration for <olink targetptr="wal_mode"/>.
 </para>
 
-<!--
-<para>
-WAL writer ensures data consistency and synchronization
-between requesting fibers, WAL writer and disk by
-employing one the following modes of operation (designated by
-<emphasis>wal_mode</emphasis> and
-<emphasis>wal_fsync_delay</emphasis> configuration keys):
-<orderedlist>
-    <listitem><emphasis>write</emphasis>: fibers wait for their
-    data to be written to the log (no fsync(2));</listitem>
-    <listitem><emphasis>fsync</emphasis>: fibers wait for their
-    data, fsync(2) follows each write(2);</listitem>
-    <listitem><emphasis>fsync_delay</emphasis>: fibers wait for their
-    data, fsync every N=<emphasis>wal_fsync_delay</emphasis>
-    seconds (N=0.0 means no fsync(2) - equivalent to
-    <emphasis>wal_mode = "write"</emphasis>);</listitem>
-</orderedlist>
-</para>
--->
 
 </section>
 <!--